Total Knee Arthroplasty Robot Assisted With MAKO™ Robotic System Compared to the Conventional Total Knee Arthroplasty by Mechanical Ancillary

University Hospital, Grenoble60 enrolled

Overview

For the total knee arthrorplasty (TKA), the placement of a prosthesis is delicate and the correct positioning of the implants determines the result of the surgery. Navigation has improved surgical accuracy but remains inadequate with nearly 20% malposition. In the early 2010s, robot-assisted surgery solutions were born. Amongst its offers, Stryker's MAKO™ system appears to be the most advanced and developed due to its precision and its flexibility of use during surgery. In this study, the investigators evaluate the placement of the total knee prosthesis with the MAKO™ system compared to the placement of the total knee prosthesis with a conventional mechanical system for TKA

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Enrollment

Conditions

Total Knee Arthroplasty

Interventions

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Major patient * Patient who must have a total prosthetic knee surgery at CHUGA with the useful indications : painful and disabling knee joint disease: traumatic arthritis or avascular necrosis, rheumatoid arthritis or post-traumatic arthritis, post-traumatic loss of the configuration and function of the knee joint, moderate deformities in varus, or valgus or flexion in ligamentous structures can find a function and a fracture of the distal femur and / or proximal tibia that can not be stabilized by standard fracture management techniques. * Social security affiliates or beneficiaries of a scheme Exclusion Criteria: * refusal of consent, * patient with a contraindication to prosthetic knee surgery: * any active or suspected latent infection in or around the knee joint, * remote foci of infection that can cause haematogenous spread on the implant site, * any mental or neuromuscular disorder that would create an unacceptable risk of instability of the prosthesis, * failure of prosthesis fixation or complications in postoperative care, * a bone stock compromised by a disease, * infection or anterior prosthetic implantation that can not provide adequate support and / or satisfactory fixation to the prosthesis, * skeletal immaturity, * severe instability of the knee joint secondary to the lack of integrity and function of the collateral ligament, * woman of childbearing age, * patient during the exclusion period of another study, * patient referred in Articles L1121-5 to L1121-8 of the Public Health Code

Outcomes

Primary Outcomes

Difference between the actual HKA angle obtained postoperatively and the planned HKA angle preoperatively.

HKA (Hip-Knee-Ankle). Angles in degrees are obtained from preoperative 3D scanner and postoperative 3D scanner on day 7.

Time frame: 26 months

Secondary Outcomes

To compare the mechanical axis between the conventional surgery group and the MAKO™ assisted surgery group.

Mechanical axis (in degree) evaluated from the post-operative 3D computed tomography on the day 7.

Time frame: 26 months

To compare, between the conventional surgery group and the MAKO™ assisted surgery group, the angles accuracy of inclination and rotation in the 3 planes of the space (frontal, sagittal and axial) to accomplish the preoperative planning. The accuracy

difference between the angles of inclination and rotation obtained postoperatively and the planned angles preoperatively, in the 3 planes of the space. The angles, in degree, are evaluated from 3D preoperative scan and postoperative 3D scan.

Time frame: 26 months

To compare the operative time between the conventional surgery group and the MAKO™ assisted surgery group.

Duration (in minutes) between the time of the last stitch and the time of the first incision.

Time frame: 26 months

To evaluate the conversion rate in conventional method for patients in the MAKO™ assisted surgery group.

Conversion number to conventional method.

Time frame: 26 months

To compare the blood loss during the procedure between the conventional surgery group and the MAKO™ assisted surgery group.

Blood loss in liter according to the BRECHER formula (see Appendix E).

Time frame: 26 months

To compare between the conventional surgery group and the MAKO™ assisted surgery group the time needed to reach the hospital discharge criteria.

Duration (in days) between the date of the surgery and the date on which the patient can ascend the stairs on one floor and walk 100 meters with a cane.

Time frame: 26 months

To compare the functional results between the conventional surgery group and the MAKO™ assisted surgery group.

KSS, KOOS and EQ5D-3L scores at inclusion, then at 3 months, 6 months, and 1 year postoperatively.

Time frame: 26 months

To compare intraoperative complication rates between the conventional surgery group and the MAKO™ assisted surgery group.

Number of intraoperative complications. The complications are classified according to the following classification: light grade 1; moderate level 2; severe grade 3.

Time frame: 26 months

To compare the results of early (<1 months) and late (≥ 1 month) postoperative consultations between the conventional surgery group and the MAKO™-assisted surgery group.

Number of early (\<1 month) and late (≥ 1 month) postoperative complications. Complications are classified according to the following classification: mild grade 1; moderate level 2; severe grade 3

Time frame: 26 months

To compare between the conventional surgery group and the MAKO™-assisted surgery group the operating times for surgical installation, bone preparation and implant placement.

1. for the surgical installation step: duration in minutes between the start of installation time (= end of anesthesia) and the time of first incision; 2. for the bone preparation step: duration in minutes between the time of the first incision and the hour of end of extraction of the femoral sections; 3. for the implant placement stage: duration in minutes between the start time of placement of the trial tibial implant and the time of the last stitch.

Time frame: 26 months

Central Contacts

Régis Pailhé, MD, PhD

CONTACT

+33 617970492 rpailhe@chu-grenoble.fr

Emilie Chipon, PhD

CONTACT

+33 476767313 echipon@chu-grenoble.fr

Total Knee Arthroplasty Robot Assisted With MAKO™ Robotic System Compared to the Conventional Total Knee Arthroplasty by Mechanical Ancillary

Overview

Conditions

Interventions

Eligibility

Locations (1)

Outcomes

Primary Outcomes

Secondary Outcomes

Central Contacts