NCT04353440

Association Between Sagittal Patellar Offset and Anterior Knee Pain in Total Knee Arthroplasty

Association Between Sagittal Patellar Offset and Anterior Knee Pain After Multiradius Total Knee Replacement.

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 80 (estimated)
• Sponsor: Bezmialem Vakif University · Academic / Other
• Sex: All
• Age: 50 Years – 100 Years
• Healthy volunteers: Not accepted

Summary

The aim of this study to evaluate whether the position of the sagittal patellar offset is a predictive factor for anterior knee pain in subjects having undergone bilateral multiradius total knee replacement.

Detailed description

A prospective, observational study. A total of to 80 subjects requiring bilateral multiradius knee arthroplasty will be enrolled. Anterior femoral offset, femoral diameter and patellar offset will be measured by orthopaedic surgeons. In addition, Visual Analogue Scale Score, Oxford Knee Score, WOMAC, SF12 and SF36 will be evaluated postoperative in patients long-term follow up to see if there is a relationship between anterior femoral offset and anterior knee pain.In the direct lateral knee joint radiograph, the distance between the two parallel axis extending from both cortices of the femur is measured as "femoral diameter".The remaining length between the anterior axis and the maximum peak at the anterior of the prosthesis is considered as an "anterior femoral offset"\[1\]. Sagittal patellar offset defined by us as the ratio of the anterior femoral offset to the remaining distance between the maximum anterior point of the patella and the posterior vertex in the direct lateral knee joint radiography.

Conditions

• Primary Gonarthrosis, Bilateral
• Knee Osteoarthritis
• Knee Arthritis

Timeline

• Start date: 2020-04-23
• Primary completion: 2025-04-23
• Completion: 2025-07-23
• First posted: 2020-04-20
• Last updated: 2020-04-21