The purpose of this study is to elucidate surgical techniques for reconstructing MPFL in the treatment of chronic patella instability. The two techniques are conventional technique with the gracillis and screw fixation in the femur which is compared with new technique where the QT tendons and anchor fixation in the femur are used. It would be investigated which technique provides the best stability with the least postoperative pain from the reconstruction and the lowest frequency of patellar reluxation.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
90
Using quadriceps graft as new medial patellofemoral ligament graft. Fixated with suture anchor
Division of Sports Trauma, Palle Juul-Jensens Boulevard 99
Aarhus N, Denmark
Kujala (Anterior Knee Pain Scale)
Patient reported outcome score, 0=worst and 100=best
Time frame: 24 month
Donor site morbidity score, 0=worst and 100=best
Patient reported outcome score
Time frame: 24 month
Knee injury and Osteoarthritis Outcome Score (KOOS)
Patient reported outcome score, 0=worst and 100=best
Time frame: 24 month
Lysholm-Tegner (Activity Score)
Patient reported outcome score, 0=worst and 100=best
Time frame: 24 month
Numerical Rating Scale (NRS-pain score)
Patient reported outcome score, 0=Best and 10=worst
Time frame: 24 month
Knee pain
Palpatory pain in relation to graft fixation in femur on a four-point likert scale (no pain, mild pain, moderate pain, severe pain)
Time frame: 24 month
Patella Re-luxation sensation
Question about how often the patella has dislocated after the surgery. (no dislocation, 1-2 dislocation/md, more dislocation).
Time frame: 24 month
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