Adductor Ratio in Severe Varus Gonarthrosis

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age65+
SponsorSaglik Bilimleri Universitesi

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 volunteers

Qualifiers

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

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

  • total knee arthroplasty

    Procedure/Surgery

    cemented bicondylar PCL substituting total knee replacement

Treatment groups

68 Participants
are divided into 2 treatment groups
Group A: Intraarticular1 intervention
Group B: Metaphyseal1 intervention

Trial outcomes

Primary outcomes

1

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)

Time frame
comparison between baseline (preoperative and intraoperative) measurements

Secondary outcomes

1

Determination of joint Line according to distance from medial and lateral epicondyles to joint line

Comparison of preoperative and intraoperative measurements (mm)

Time frame
comparison between baseline (preoperative and intraoperative) measurements
2

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

Time frame
comparison between preoperative and postoperative 12th month control

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Saglik Bilimleri Universitesi

Lead sponsor

Saglik Bilimleri Universitesi Gulhane Tip Fakultesi

Sponsor institution