STUDY OF THE CLINICO-RADIOLOGICAL OUTCOME OF PCL RETAINING TOTAL KNEE ARTHROPLASTY IN SEVERE VARUS DEFORMITY: A PROSPECTIVE OBSERVATIONAL STUDY.

Abstract

Introduction: The role of the posterior cruciate ligament (PCL) in total knee arthroplasty (TKA) has been widely discussed in the orthopedic literature. It has been suggested that PCLretaining can produce femoral rollback, which increases the range of exion and prevents posterior translation. This in effect, reduces loosening and excessive polyethylene wear by decreasing the shear stresses at the xation surfaces. With consideration proper selection of patients, adequate attention to surgical technique and asepsis, proper Intra-operative soft tissue balancing, correct alignment of prosthesis and postoperative rehabilitation of patients, cruciate retaining total knee replacement has yielded excellent results Aim: The aim of this prospective study is to evaluate the clinic-radiological outcome of PCL retaining total knee arthroplasty in severe varus deformity Materials and Methods: This is a prospective study in which patients were randomly selected, and PCL retaining surgery was done for those knees with severe varus deformity and assessed the functional outcome using functional knee scores and oxford knee score and WOMAC (Western Ontario and McMaster Universities Osteoarthritis Index) questionnaires during the period between July 2016 to June 2018. Conclusion: PCL-retaining total knee arthroplasty appears to provide better range of motion and stair-climbing ability similar to anatomical knee.