Muhammad Zahid Siddiq, Hamid Qayum.
Outcome of Total Knee Arthroplasty with lnsall Burstein-II Prosthesis.
Proceeding Shaikh Zayed Postgrad Med Comp Jan ;20(2):65-70.

Introduction: Patients with severe degenerative knee joint disease often require knee arthroplasty to reduce pain, improve stability and restore function. Insall Burstein II prosthesis is posteriorly stabilized condylar prosthesis, which provide posterior cruciate ligament substitution. It was designed to improve range of motion, stair climbing ability and to prevent posterior subluxation. Objectives: Evaluate the functional outcome of total knee arthroplasty with IB II prosthesis and Evaluate the alignment of prosthetic components by radiological parameters and its correlation with functional outcome. Study Design: It was a case series descriptive study. Setting: Department of Orthopaedic Surgery at Shaikh Zayed Hospital, Lahore. Duration of the Study: It was carried out in 3 years form 1st September 2003 to 3151 August 2006. Subject and Methods: Sixty knees of sixty patients were replaced by using lnsall Burstein II prosthesis. Postoperative radiographs were evaluated for alignment of knee and prosthetic components by criteria selected from knee society roentogenographic evaluation system. Functional outcome was evaluated by rationale of knee society knee rating system. Results: Prosthetic component was aligned in 93% and mal-alignment in 7% of the cases. There was significant improvement in function score from mean score 33.83±15.5 to 59.5±i7.7 and knee score from 37± 12.5 to 76.4 ±2.2. Postoperative functional score was found correlated with alignment significantly. Conclusion: Total knee arthroplasty with I-B-II prosthesis is a safe durable and predictable procedure with proper surgical technique and expertise good alignment and satisfactory functional out come can be achieved.

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