Total knee arthroplasty (TKA) with the sacrifice of the anterior cruciate ligament is the standard treatment for severe knee osteoarthritis. A number of studies on the kinematics of the prosthetic knee tend to show that implants that preserve the cruciate ligaments best reproduce the kinematics of the healthy knee. The goal is to compare the clinical and radiological results in patients undergoing total knee replacement surgery according to the type of prosthesis used. It is anticipated that the bicruciate-retaining prosthesis will result in better function of the operated knee than the posterior-stabilized prosthesis. Method: * Randomized controlled trial * Monocentric * Randomization will be done using sealed envelopes
Posterior cruciate ligament replacement knee prostheses or posterior-stabilized (PS) are the most used type of prosthesis. Various studies of the kinematics of the prosthetic knee tend to show that implants that preserve both cruciate ligaments best reproduce the kinematics of the healthy knee. These implants are the unicondylar knee Arthroplasty - in which only one side of the femorotibial joint is replaced; most often the medial side - and the bicruciate-retaining total knee arthroplasty (BCR). The BCR prosthesis is perceived as technically difficult to install and has never been a great commercial success despite the scientific demonstration of its virtues for knee kinematics. Given the current trend among prosthetic implant manufacturers to optimize the performance of knee prostheses for younger, active patients, the retention of both cruciate ligaments appears to be an interesting alternative. Unfortunately, there are no good studies comparing the results of the BCR prosthesis to the PS prosthesis. The goal is to compare the clinical and radiological results in patients undergoing total knee replacement surgery according to the type of prosthesis used (BCR vs PS). The hypothesis is that the BCR prosthesis will result in better function of the operated knee than the PS prosthesis, resulting in joint kinematics closer to a healthy knee, better clinical scores and a higher activity level. 60 patients undergoing a total knee arthroplasty will be recruited. Randomization will be done intraoperatively using sealed envelopes once the indication for BCR TKA has been definitively established. Demographic data, medical history, clinical assessment and 4 questionnaires (IKS, KOOS, Marx and SF-12) will be completed prior to surgery. A standard x-ray, EOS imaging, TELOS radiological laximetry and a non-invasive evaluation of the 3D kinematics will be performed before the surgery. Patients will complete the 4 questionnaires at 6 weeks, 6 months, 1 year, 2 years, 5 years and 10 years post-surgery. A standard radiological examination will be performed at the same follow-ups. TELOS radiological laximetry, EOS imaging and 3D kinematics assessment will be repeated at the 1-year follow-up post-surgery.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
77
Centre Hospitalier de l'Université de Montréal
Montreal, Quebec, Canada
Change in KOOS pain score
KOOS pain score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS pain score at 10 years after the surgery
Change in KOOS pain score
KOOS pain score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS pain score at 6 weeks after the surgery
Change in KOOS pain score
KOOS pain score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS pain score at 6 months after the surgery
Change in KOOS pain score
KOOS pain score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS pain score at 1 year after the surgery
Change in KOOS pain score
KOOS pain score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS pain score at 2 years after the surgery
Change in KOOS pain score
KOOS pain score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS pain score at 5 years after the surgery
Change in KOOS symptoms score
KOOS symptoms score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS pain symptoms at 6 weeks after the surgery
Change in KOOS symptoms score
KOOS symptoms score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS symptoms score at 6 months after the surgery
Change in KOOS symptoms score
KOOS symptoms score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS symptoms score at 1 year after the surgery
Change in KOOS symptoms score
KOOS symptoms score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS symptoms score at 2 years after the surgery
Change in KOOS symptoms score
KOOS symptoms score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS pain symptoms at 5 years after the surgery
Change in KOOS symptoms score
KOOS symptoms score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS pain symptoms at 10 years after the surgery
Change in KOOS activity of daily living score
KOOS symptoms score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS activity of daily living at 6 weeks after the surgery
Change in KOOS activity of daily living score
KOOS activity of daily living score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS activity of daily living score at 6 months after the surgery
Change in KOOS activity of daily living score
KOOS activity of daily living score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS activity of daily living score at 1 year after the surgery
Change in KOOS activity of daily living score
KOOS activity of daily living score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS activity of daily living score at 2 years after the surgery
Change in KOOS activity of daily living score
KOOS symptoms score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS activity of daily living at 5 years after the surgery
Change in KOOS activity of daily living score
KOOS symptoms score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS activity of daily living at 10 years after the surgery
Change in KOOS sport and recreation score
KOOS sport and recreation score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS sport and recreation at 6 weeks after the surgery
Change in KOOS sport and recreation score
KOOS sport and recreation score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS sport and recreation score at 6 months after the surgery
Change in KOOS sport and recreation score
KOOS sport and recreation score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS sport and recreation score at 1 year after the surgery
Change in KOOS sport and recreation score
KOOS sport and recreation score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS sport and recreation score at 2 years after the surgery
Change in KOOS sport and recreation score
KOOS sport and recreation score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS sport and recreation at 5 years after the surgery
Change in KOOS sport and recreation score
KOOS sport and recreation score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS sport and recreation at 10 years after the surgery
Change in KOOS quality of life score
KOOS quality of life score score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS quality of life at 6 weeks after the surgery
Change in KOOS quality of life score
KOOS quality of life score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS quality of life score at 6 months after the surgery
Change in KOOS quality of life score
KOOS quality of life score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS quality of life score at 1 year after the surgery
Change in KOOS quality of life score
KOOS quality of life score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS quality of life score at 2 years after the surgery
Change in KOOS quality of life score
KOOS quality of life score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS quality of life at 5 years after the surgery
Change in KOOS quality of life score
KOOS quality of life score; 0-100 scale, 0: extreme problems 100: no problems
Time frame: Change from baseline (pre surgery) KOOS quality of life at 10 years after the surgery
Change in MARX score
MARX activity rating scale; 0-16, 0: less frequent sport participation 16: more frequent sport participation
Time frame: Change from baseline (pre surgery) MARX score at 6 weeks after the surgery
Change in MARX score
MARX activity rating scale; 0-16, 0: less frequent sport participation 16: more frequent sport participation
Time frame: Change from baseline (pre surgery) MARX score at 6 months after the surgery
Change in MARX score
MARX activity rating scale; 0-16, 0: less frequent sport participation 16: more frequent sport participation
Time frame: Change from baseline (pre surgery) MARX score at 1 year after the surgery
Change in MARX score
MARX activity rating scale; 0-16, 0: less frequent sport participation 16: more frequent sport participation
Time frame: Change from baseline (pre surgery) MARX score at 2 years after the surgery
Change in MARX score
MARX activity rating scale; 0-16, 0: less frequent sport participation 16: more frequent sport participation
Time frame: Change from baseline (pre surgery) MARX score at 5 yearss after the surgery
Change in MARX score
MARX activity rating scale; 0-16, 0: less frequent sport participation 16: more frequent sport participation
Time frame: Change from baseline (pre surgery) MARX score at 10 yearss after the surgery
Change in International Knee Society scoring system (IKS) : knee score
IKS Knee score; 0-100, 0: poor condition of the knee 100: better condition of the knee
Time frame: Change from baseline (pre surgery) IKS Knee score at 6 weeks after the surgery
Change in International Knee Society scoring system (IKS) : knee score
IKS Knee score; 0-100, 0: poor condition of the knee 100: better condition of the knee
Time frame: Change from baseline (pre surgery) IKS Knee score at 6 months after the surgery
Change in International Knee Society scoring system (IKS) : knee score
IKS Knee score; 0-100, 0: poor condition of the knee 100: better condition of the knee
Time frame: Change from baseline (pre surgery) IKS Knee score at 1 year after the surgery
Change in International Knee Society scoring system (IKS) : knee score
IKS Knee score; 0-100, 0: poor condition of the knee 100: better condition of the knee
Time frame: Change from baseline (pre surgery) IKS Knee score at 2 years after the surgery
Change in International Knee Society scoring system (IKS) : knee score
IKS Knee score; 0-100, 0: poor condition of the knee 100: better condition of the knee
Time frame: Change from baseline (pre surgery) IKS Knee score at 5 years after the surgery
Change in International Knee Society scoring system (IKS) : knee score
IKS Knee score; 0-100, 0: poor condition of the knee 100: better condition of the knee
Time frame: Change from baseline (pre surgery) IKS Knee score at 10 years after the surgery
Change in International Knee Society scoring system (IKS) : function score
IKS Knee score; 0-100, 0: severe functional disability 100: no disability
Time frame: Change from baseline (pre surgery) IKS function score at 6 weeks after the surgery
Change in International Knee Society scoring system (IKS) : function score
IKS Knee score; 0-100, 0: severe functional disability 100: no disability
Time frame: Change from baseline (pre surgery) IKS function score at 6 months after the surgery
Change in International Knee Society scoring system (IKS) : function score
IKS Knee score; 0-100, 0: severe functional disability 100: no disability
Time frame: Change from baseline (pre surgery) IKS function score at 1 year after the surgery
Change in International Knee Society scoring system (IKS) : function score
IKS Knee score; 0-100, 0: severe functional disability 100: no disability
Time frame: Change from baseline (pre surgery) IKS function score at 2 years after the surgery
Change in International Knee Society scoring system (IKS) : function score
IKS Knee score; 0-100, 0: severe functional disability 100: no disability
Time frame: Change from baseline (pre surgery) IKS function score at 5 years after the surgery
Change in International Knee Society scoring system (IKS) : function score
IKS Knee score; 0-100, 0: severe functional disability 100: no disability
Time frame: Change from baseline (pre surgery) IKS function score at 10 years after the surgery
Change in Knee Range of Motion (ROM)
Genu Recurvatum, Genu Flexum and Knee maximal flexion, angle in degrees ranging from 0 to 160
Time frame: Change from baseline (pre surgery) ROM at 6 weeks after the surgery
Change in Knee Range of Motion (ROM)
Genu Recurvatum, Genu Flexum and Knee maximal flexion, angle in degrees ranging from 0 to 160
Time frame: Change from baseline (pre surgery) ROM at 6 months after the surgery
Change in Knee Range of Motion (ROM)
Genu Recurvatum, Genu Flexum and Knee maximal flexion, angle in degrees ranging from 0 to 160
Time frame: Change from baseline (pre surgery) ROM at 1 year after the surgery
Change in Knee Range of Motion (ROM)
Genu Recurvatum, Genu Flexum and Knee maximal flexion, angle in degrees ranging from 0 to 160
Time frame: Change from baseline (pre surgery) ROM at 2 years after the surgery
Change in Knee Range of Motion (ROM)
Genu Recurvatum, Genu Flexum and Knee maximal flexion, angle in degrees ranging from 0 to 160
Time frame: Change from baseline (pre surgery) ROM at 5 years after the surgery
Change in Knee Range of Motion (ROM)
Genu Recurvatum, Genu Flexum and Knee maximal flexion, angle in degrees ranging from 0 to 160
Time frame: Change from baseline (pre surgery) ROM at 10 years after the surgery
Change in Lower limb morphology in the coronal plane
Lower limb morphology in the coronal plane; neutral: 176-184 degrees varus: \<176 degrees valgus: \> 184 degrees
Time frame: Change from baseline (pre surgery) Lower limb morphology in the coronal plane at 6 weeks after the surgery
Change in Lower limb morphology in the coronal plane
Lower limb morphology in the coronal plane; neutral: 176-184 degrees varus: \<176 degrees valgus: \> 184 degrees
Time frame: Change from baseline (pre surgery) Lower limb morphology in the coronal plane at 6 months after the surgery
Change in Lower limb morphology in the coronal plane
Lower limb morphology in the coronal plane; neutral: 176-184 degrees varus: \<176 degrees valgus: \> 184 degrees
Time frame: Change from baseline (pre surgery) Lower limb morphology in the coronal plane at 1 year after the surgery
Change in Lower limb morphology in the coronal plane
Lower limb morphology in the coronal plane; neutral: 176-184 degrees varus: \<176 degrees valgus: \> 184 degrees
Time frame: Change from baseline (pre surgery) Lower limb morphology in the coronal plane at 2 years after the surgery
Change in Lower limb morphology in the coronal plane
Lower limb morphology in the coronal plane; neutral: 176-184 degrees varus: \<176 degrees valgus: \> 184 degrees
Time frame: Change from baseline (pre surgery) Lower limb morphology in the coronal plane at 5 years after the surgery
Change in Lower limb morphology in the coronal plane
Lower limb morphology in the coronal plane; neutral: 176-184 degrees varus: \<176 degrees valgus: \> 184 degrees
Time frame: Change from baseline (pre surgery) Lower limb morphology in the coronal plane at 10 years after the surgery
Change in Knee alignment : Hip-knee-ankle (HKA)
Hip-knee-ankle (HKA); 150-210 degrees
Time frame: Change from baseline (pre surgery) HKA at 6 weeks after the surgery
Change in Knee alignment : Hip-knee-ankle (HKA)
Hip-knee-ankle (HKA); 150-210 degrees
Time frame: Change from baseline (pre surgery) HKA at 6 months after the surgery
Change in Knee alignment : Hip-knee-ankle (HKA)
Hip-knee-ankle (HKA); 150-210 degrees
Time frame: Change from baseline (pre surgery) HKA at 1 year after the surgery
Change in Knee alignment : Hip-knee-ankle (HKA)
Hip-knee-ankle (HKA); 150-210 degrees
Time frame: Change from baseline (pre surgery) HKA at 2 years after the surgery
Change in Knee alignment : Hip-knee-ankle (HKA)
Hip-knee-ankle (HKA); 150-210 degrees
Time frame: Change from baseline (pre surgery) HKA at 5 years after the surgery
Change in Knee alignment : Hip-knee-ankle (HKA)
Hip-knee-ankle (HKA); 150-210 degrees
Time frame: Change from baseline (pre surgery) HKA at 10 years after the surgery
Change in Knee alignment : Hip-knee-shaft (HKS)
Hip-knee-shaft (HKS); 2-15 degrees
Time frame: Change from baseline (pre surgery) HKS at 6 weeks after the surgery
Change in Knee alignment : Hip-knee-shaft (HKS)
Hip-knee-shaft (HKS); 2-15 degrees
Time frame: Change from baseline (pre surgery) HKS at 6 months after the surgery
Change in Knee alignment : Hip-knee-shaft (HKS)
Hip-knee-shaft (HKS); 2-15 degrees
Time frame: Change from baseline (pre surgery) HKS at 1 year after the surgery
Change in Knee alignment : Hip-knee-shaft (HKS)
Hip-knee-shaft (HKS); 2-15 degrees
Time frame: Change from baseline (pre surgery) HKS at 2 years after the surgery
Change in Knee alignment : Hip-knee-shaft (HKS)
Hip-knee-shaft (HKS); 2-15 degrees
Time frame: Change from baseline (pre surgery) HKS at 5 years after the surgery
Change in Knee alignment : Hip-knee-shaft (HKS)
Hip-knee-shaft (HKS); 2-15 degrees
Time frame: Change from baseline (pre surgery) HKS at 10 years after the surgery
Change in Knee alignment : Medial distal femoral angle (MDFA)
Medial distal femoral angle (MDFA); 75-100 degrees
Time frame: Change from baseline (pre surgery) MDFA at 6 weeks after the surgery
Change in Knee alignment : Medial distal femoral angle (MDFA)
Medial distal femoral angle (MDFA); 75-100 degrees
Time frame: Change from baseline (pre surgery) MDFA at 6 months after the surgery
Change in Knee alignment : Medial distal femoral angle (MDFA)
Medial distal femoral angle (MDFA); 75-100 degrees
Time frame: Change from baseline (pre surgery) MDFA at 1 year after the surgery
Change in Knee alignment : Medial distal femoral angle (MDFA)
Medial distal femoral angle (MDFA); 75-100 degrees
Time frame: Change from baseline (pre surgery) MDFA at 2 years after the surgery
Change in Knee alignment : Medial distal femoral angle (MDFA)
Medial distal femoral angle (MDFA); 75-100 degrees
Time frame: Change from baseline (pre surgery) MDFA at 5 years after the surgery
Change in Knee alignment : Medial distal femoral angle (MDFA)
Medial distal femoral angle (MDFA); 75-100 degrees
Time frame: Change from baseline (pre surgery) MDFA at 10 years after the surgery
Change in Knee alignment : Medial proximal tibial angle (MPTA)
Medial proximal tibial angle (MPTA); 70-110 degrees
Time frame: Change from baseline (pre surgery) MPTA at 6 weeks after the surgery
Change in Knee alignment : Medial proximal tibial angle (MPTA)
Medial proximal tibial angle (MPTA); 70-110 degrees
Time frame: Change from baseline (pre surgery) MPTA at 6 months after the surgery
Change in Knee alignment : Medial proximal tibial angle (MPTA)
Medial proximal tibial angle (MPTA); 70-110 degrees
Time frame: Change from baseline (pre surgery) MPTA at 1 year after the surgery
Change in Knee alignment : Medial proximal tibial angle (MPTA)
Medial proximal tibial angle (MPTA); 70-110 degrees
Time frame: Change from baseline (pre surgery) MPTA at 2 years after the surgery
Change in Knee alignment : Medial proximal tibial angle (MPTA)
Medial proximal tibial angle (MPTA); 70-110 degrees
Time frame: Change from baseline (pre surgery) MPTA at 5 years after the surgery
Change in Knee alignment : Medial proximal tibial angle (MPTA)
Medial proximal tibial angle (MPTA); 70-110 degrees
Time frame: Change from baseline (pre surgery) MPTA at 10 years after the surgery
Change in Knee ligament laxity : Anterior/Posterior Instability
Anterior/Posterior Instability; measured at 90 degrees; none, moderate \< 5mm, severe \>5 mm
Time frame: Change from baseline (pre surgery) Anterior/Posterior Instability at 6 weeks after the surgery
Change in Knee ligament laxity : Anterior/Posterior Instability
Anterior/Posterior Instability; measured at 90 degrees; none, moderate \< 5mm, severe \>5 mm
Time frame: Change from baseline (pre surgery) Anterior/Posterior Instability at 6 months after the surgery
Change in Knee ligament laxity : Anterior/Posterior Instability
Anterior/Posterior Instability; measured at 90 degrees; none, moderate \< 5mm, severe \>5 mm
Time frame: Change from baseline (pre surgery) Anterior/Posterior Instability at 1 year after the surgery
Change in Knee ligament laxity : Anterior/Posterior Instability
Anterior/Posterior Instability; measured at 90 degrees; none, moderate \< 5mm, severe \>5 mm
Time frame: Change from baseline (pre surgery) Anterior/Posterior Instability at 2 years after the surgery
Change in Knee ligament laxity : Anterior/Posterior Instability
Anterior/Posterior Instability; measured at 90 degrees; none, moderate \< 5mm, severe \>5 mm
Time frame: Change from baseline (pre surgery) Anterior/Posterior Instability at 5 years after the surgery
Change in Knee ligament laxity : Anterior/Posterior Instability
Anterior/Posterior Instability; measured at 90 degrees; none, moderate \< 5mm, severe \>5 mm
Time frame: Change from baseline (pre surgery) Anterior/Posterior Instability at 10 years after the surgery
Change in Knee ligament laxity : Medial/Lateral Instability
Medial/Lateral Instability; measured in full extension; none, little \< 5 mm, moderate = 5mm, severe \> 5 mm
Time frame: Change from baseline (pre surgery) Medial/Lateral Instability at 6 weeks after the surgery
Change in Knee ligament laxity : Medial/Lateral Instability
Medial/Lateral Instability; measured in full extension; none, little \< 5 mm, moderate = 5mm, severe \> 5 mm
Time frame: Change from baseline (pre surgery) Medial/Lateral Instability at 6 months after the surgery
Change in Knee ligament laxity : Medial/Lateral Instability
Medial/Lateral Instability; measured in full extension; none, little \< 5 mm, moderate = 5mm, severe \> 5 mm
Time frame: Change from baseline (pre surgery) Medial/Lateral Instability at 1 year after the surgery
Change in Knee ligament laxity : Medial/Lateral Instability
Medial/Lateral Instability; measured in full extension; none, little \< 5 mm, moderate = 5mm, severe \> 5 mm
Time frame: Change from baseline (pre surgery) Medial/Lateral Instability at 2 years after the surgery
Change in Knee ligament laxity : Medial/Lateral Instability
Medial/Lateral Instability; measured in full extension; none, little \< 5 mm, moderate = 5mm, severe \> 5 mm
Time frame: Change from baseline (pre surgery) Medial/Lateral Instability at 5 years after the surgery
Change in Knee ligament laxity : Medial/Lateral Instability
Medial/Lateral Instability; measured in full extension; none, little \< 5 mm, moderate = 5mm, severe \> 5 mm
Time frame: Change from baseline (pre surgery) Medial/Lateral Instability at 10 years after the surgery
Change in Patellar apprehension test
Clinical physical examination for patellofemoral instability; Patellar apprehension test; normal, apprehension, apprehension and dislocation
Time frame: Change from baseline (pre surgery) Patellofemoral Instability at 6 weeks after the surgery
Change in Patellar apprehension test
Clinical physical examination for patellofemoral instability; Patellar apprehension test; normal, apprehension, apprehension and dislocation
Time frame: Change from baseline (pre surgery) Patellofemoral Instability at 6 months after the surgery
Change in Patellar apprehension test
Clinical physical examination for patellofemoral instability; Patellar apprehension test; normal, apprehension, apprehension and dislocation
Time frame: Change from baseline (pre surgery) Patellofemoral Instability at 1 year after the surgery
Change in Patellar apprehension test
Clinical physical examination for patellofemoral instability; Patellar apprehension test; normal, apprehension, apprehension and dislocation
Time frame: Change from baseline (pre surgery) Patellofemoral Instability at 2 years after the surgery
Change in Patellar apprehension test
Clinical physical examination for patellofemoral instability; Patellar apprehension test; normal, apprehension, apprehension and dislocation
Time frame: Change from baseline (pre surgery) Patellofemoral Instability at 5 years after the surgery
Change in Patellar apprehension test
Clinical physical examination for patellofemoral instability; Patellar apprehension test; normal, apprehension, apprehension and dislocation
Time frame: Change from baseline (pre surgery) Patellofemoral Instability at 10 years after the surgery
Change in Physical Activity Level Scale
Physical Activity Level Scale; None, Mild, Moderate, Strenuous, Competitive
Time frame: Change from baseline (pre surgery) Physical Activity Level at 6 weeks after the surgery
Change in Physical Activity Level Scale
Physical Activity Level Scale; None, Mild, Moderate, Strenuous, Competitive
Time frame: Change from baseline (pre surgery) Physical Activity Level at 6 months after the surgery
Change in Physical Activity Level Scale
Physical Activity Level Scale; None, Mild, Moderate, Strenuous, Competitive
Time frame: Change from baseline (pre surgery) Physical Activity Level at 1 year after the surgery
Change in Physical Activity Level Scale
Physical Activity Level Scale; None, Mild, Moderate, Strenuous, Competitive
Time frame: Change from baseline (pre surgery) Physical Activity Level at 2 years after the surgery
Change in Physical Activity Level Scale
Physical Activity Level Scale; None, Mild, Moderate, Strenuous, Competitive
Time frame: Change from baseline (pre surgery) Physical Activity Level at 5 years after the surgery
Change in Physical Activity Level Scale
Physical Activity Level Scale; None, Mild, Moderate, Strenuous, Competitive
Time frame: Change from baseline (pre surgery) Physical Activity Level at 10 years after the surgery
Change in Physical Activities Scale
Physical Activities Scale; Sedentary / very little, Physical work, Aerobic, Sport(s) without pivot, Sport(s) with pivot
Time frame: Change from baseline (pre surgery) Physical Activities at 6 weeks after the surgery
Change in Physical Activities Scale
Physical Activities Scale; Sedentary / very little, Physical work, Aerobic, Sport(s) without pivot, Sport(s) with pivot
Time frame: Change from baseline (pre surgery) Physical Activities at 6 months after the surgery
Change in Physical Activities Scale
Physical Activities Scale; Sedentary / very little, Physical work, Aerobic, Sport(s) without pivot, Sport(s) with pivot
Time frame: Change from baseline (pre surgery) Physical Activities at 1 year after the surgery
Change in Physical Activities Scale
Physical Activities Scale; Sedentary / very little, Physical work, Aerobic, Sport(s) without pivot, Sport(s) with pivot
Time frame: Change from baseline (pre surgery) Physical Activities at 2 years after the surgery
Change in Physical Activities Scale
Physical Activities Scale; Sedentary / very little, Physical work, Aerobic, Sport(s) without pivot, Sport(s) with pivot
Time frame: Change from baseline (pre surgery) Physical Activities at 5 years after the surgery
Change in Physical Activities Scale
Physical Activities Scale; Sedentary / very little, Physical work, Aerobic, Sport(s) without pivot, Sport(s) with pivot
Time frame: Change from baseline (pre surgery) Physical Activities at 10 years after the surgery
Change in 12-Item Short Form Survey (SF-12) score
SF-12; Physical component summary (PCS-12), Mental component summary (MCS-12), the scores are reported as Z-scores (difference compared to the population average, measured in standard deviations). The United States population average PCS-12 and MCS-12 are both 50 points. The United States population standard deviation is 10 points. So each 10 increment of 10 points above or below 50, corresponds to one standard deviation away from the average.
Time frame: Change from baseline (pre surgery) SF-12 Questionnaire at 6 weeks after the surgery
Change in 12-Item Short Form Survey (SF-12) score
SF-12; Physical component summary (PCS-12), Mental component summary (MCS-12), the scores are reported as Z-scores (difference compared to the population average, measured in standard deviations). The United States population average PCS-12 and MCS-12 are both 50 points. The United States population standard deviation is 10 points. So each 10 increment of 10 points above or below 50, corresponds to one standard deviation away from the average.
Time frame: Change from baseline (pre surgery) SF-12 Questionnaire at 6 months after the surgery
Change in 12-Item Short Form Survey (SF-12) score
SF-12; Physical component summary (PCS-12), Mental component summary (MCS-12), the scores are reported as Z-scores (difference compared to the population average, measured in standard deviations). The United States population average PCS-12 and MCS-12 are both 50 points. The United States population standard deviation is 10 points. So each 10 increment of 10 points above or below 50, corresponds to one standard deviation away from the average.
Time frame: Change from baseline (pre surgery) SF-12 Questionnaire at 1 year after the surgery
Change in 12-Item Short Form Survey (SF-12) score
SF-12; Physical component summary (PCS-12), Mental component summary (MCS-12), the scores are reported as Z-scores (difference compared to the population average, measured in standard deviations). The United States population average PCS-12 and MCS-12 are both 50 points. The United States population standard deviation is 10 points. So each 10 increment of 10 points above or below 50, corresponds to one standard deviation away from the average.
Time frame: Change from baseline (pre surgery) SF-12 Questionnaire at 2 years after the surgery
Change in 12-Item Short Form Survey (SF-12) score
SF-12; Physical component summary (PCS-12), Mental component summary (MCS-12), the scores are reported as Z-scores (difference compared to the population average, measured in standard deviations). The United States population average PCS-12 and MCS-12 are both 50 points. The United States population standard deviation is 10 points. So each 10 increment of 10 points above or below 50, corresponds to one standard deviation away from the average.
Time frame: Change from baseline (pre surgery) SF-12 Questionnaire at 5 years after the surgery
Change in 12-Item Short Form Survey (SF-12) score
SF-12; Physical component summary (PCS-12), Mental component summary (MCS-12), the scores are reported as Z-scores (difference compared to the population average, measured in standard deviations). The United States population average PCS-12 and MCS-12 are both 50 points. The United States population standard deviation is 10 points. So each 10 increment of 10 points above or below 50, corresponds to one standard deviation away from the average.
Time frame: Change from baseline (pre surgery) SF-12 Questionnaire at 10 years after the surgery
Change in TELOS radiological laximetry
TELOS radiological laximetry of both knees; varus and valgus laxity with knees in extension, anterior-posterior laxity of the knees at 20 and 90 degrees of flexion
Time frame: Change from baseline (pre surgery) TELOS radiological laximetry at 1 year after the surgery
Change in EOS imaging pseudo-kinematic - standardized squatting task - knee flexion and extension
EOS imaging of both knees during a standardized squatting task; knee rotation around the media-lateral axis (knee flexion and extension), degrees
Time frame: Change from baseline (pre surgery) EOS imaging pseudo-kinematic at 1 year after the surgery
Change in EOS imaging pseudo-kinematic - standardized squatting task - knee abduction and adduction
EOS imaging of both knees during a standardized squatting task; knee rotation around the anteroposterior axis (knee abduction and adduction), degrees
Time frame: Change from baseline (pre surgery) EOS imaging pseudo-kinematic at 1 year after the surgery
Change in EOS imaging pseudo-kinematic - standardized squatting task - knee internal and external rotation
EOS imaging of both knees during a standardized squatting task; knee rotation around the longitudinal axis (knee internal and external rotation), degrees
Time frame: Change from baseline (pre surgery) EOS imaging pseudo-kinematic at 1 year after the surgery
Change in EOS imaging pseudo-kinematic - free squatting task - knee flexion and extension
EOS imaging of both knees during a free squatting task; knee rotation around the media-lateral axis (knee flexion and extension), degrees
Time frame: Change from baseline (pre surgery) EOS imaging pseudo-kinematic at 1 year after the surgery
Change in EOS imaging pseudo-kinematic - free squatting task - knee abduction and adduction
EOS imaging of both knees during a free squatting task; knee rotation around the anteroposterior axis (knee abduction and adduction), degrees
Time frame: Change from baseline (pre surgery) EOS imaging pseudo-kinematic at 1 year after the surgery
Change in EOS imaging pseudo-kinematic - free squatting task - knee internal and external rotation
EOS imaging of both knees during a free squatting task; knee rotation around the longitudinal axis (knee internal and external rotation), degrees
Time frame: Change from baseline (pre surgery) EOS imaging pseudo-kinematic at 1 year after the surgery
Changes in 3D knee kinematics assessment during walking - knee flexion and extension
3D kinematics assessment during walking, the knee kinematics will be assessed using the kneeKG system, knee rotation around the media-lateral axis (knee flexion and extension), degrees
Time frame: Change from baseline (pre surgery) 3D kinematics assessment at 1 year after the surgery
Changes in 3D knee kinematics assessment during walking measured with the KneeKG system - knee abduction and adduction
3D kinematics assessment during walking, the knee kinematics will be assessed using the kneeKG system, knee rotation around the anteroposterior axis (knee abduction and adduction), degrees
Time frame: Change from baseline (pre surgery) 3D kinematics assessment at 1 year after the surgery
Changes in 3D knee kinematics assessment during walking measured with the KneeKG system - knee internal and external rotation
3D kinematics assessment during walking, the knee kinematics will be assessed using the kneeKG system, knee rotation around the longitudinal axis (knee internal and external rotation), degrees
Time frame: Change from baseline (pre surgery) 3D kinematics assessment at 1 year after the surgery
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.