About this trial
The restoration of the joint line (JL) is essential for the proper functioning of Total Knee Arthroplasty (TKA). The exact position of JL can be determined using anatomical landmarks such as femoral condylar width (TEW), tibial tubercle, fibular head, and adductor tubercle during preoperative planning or intraoperatively. However, in cases of severe varus deformity in Type M gonarthrosis, it is unknown which method is most suitable for accurately determining the precise JL position. The aim of this study is to identify the most appropriate method for determining the JL position in Type M gonarthrosis. To achieve this goal, two groups of patients with Type 1A and Type M gonarthrosis will be compared by measuring preoperative values and comparing them with intraoperative reference values.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patients over 65 years of age
Candidates with varus alignment osteoarthritis of the knee
Patients with complete data set
Patients who have agreed to participate in the study
Disqualifiers
Patients who did not provide consent to participate in the study
Patients with post-traumatic osteoarthritis
Patients with inflammatory type of osteoarthritis
Patients with incomplete data set
Trial population
Patients with KL Grade 4 severe OA with type M severe varus malalignment or just KL4 OA with intraarticular type 3 and 4 deformity according to Parvizi classification of varus gonarthrosis
Trial design
Cohort
Prospective
Treatments tested in this trial
total knee arthroplasty
Procedure/Surgerycemented bicondylar PCL substituting total knee replacement
Treatment groups
Trial outcomes
Primary outcomes
Determination of joint Line according to adductor ratio
Comparison of preoperative and intraoperative measurement of Adductor ratio (adductor tubercle to joint line/transepicondylar width; mm/mm)
Secondary outcomes
Determination of joint Line according to distance from medial and lateral epicondyles to joint line
Comparison of preoperative and intraoperative measurements (mm)
HSS (Hospital for Special Surgery) knee score
The score evaluates a range of factors, and each factor is assigned a score on the 100-point scale and and higher scores indicate better functional status
Sponsors and contacts
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Saglik Bilimleri Universitesi
Lead sponsor
Saglik Bilimleri Universitesi Gulhane Tip Fakultesi
Sponsor institution