Adductor Ratio Compared to Other Methods for Determining Joint Line in Severe Varus Gonarthrosis An Observational Study During Total Knee Arthroplasty Lead Sponsor: Saglik Bilimleri Universitesi

What this Trial Is About

Researchers are investigating the best way to restore the joint line (JL) during Total Knee Arthroplasty (TKA) for patients with severe varus deformity in Type M gonarthrosis, a form of knee osteoarthritis that causes pain and limited movement. The study compares two groups of patients with different types of gonarthrosis by measuring joint line positions before and during surgery to find the most accurate method. The aim is to improve knee function and reduce complications that can arise from incorrect joint line positioning, such as chronic pain and joint instability. The study involves patients undergoing cemented bicondylar posterior cruciate ligament (PCL) substituting total knee replacements. Researchers will use anatomical landmarks including the femoral condylar width, tibial tubercle, fibular head, and adductor tubercle to determine the joint line position. Preoperative X-rays and intraoperative caliper measurements will be taken, with follow-up X-rays after surgery. This approach seeks to validate the adductor ratio method as a reliable tool for joint line restoration, especially in cases with severe bone and cartilage damage. Participants will be monitored through preoperative, intraoperative, and postoperative assessments including imaging and functional evaluations over two years. The main outcome is the accuracy of joint line determination using the adductor ratio compared to other techniques. Researchers will track patient recovery and knee function to assess the effectiveness of the measurement methods. Safety and data completeness are also checked throughout the study period.

Adductor Ratio in Severe Varus Gonarthrosis