Early results of subvastus versus medial parapatellar approach in primary total knee arthroplasty

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Abstract

Introduction

To evaluate the clinical and radiographic results immediately after total knee arthroplasty, we compared the parapatellar and subvastus approach.

Materials and methods

Fifty-two patients with osteoarthritis were randomly assigned to two groups. The measurement was based on clinical and radiographic features.

Results

There was a significant difference in passive range of motion. Patients in the subvastus approach group revealed a full knee extension and flexion of 90° significantly earlier than those in the parapatellar group. However, on the day of discharge, both groups were comparable. Radiological assessment revealed analogous results in both groups. Correction of varus or valgus deformity was required in 48 patients.

Conclusion

Regardless of the surgical approach, the anteroposterior tibial femoral angle improved significantly in both groups. Concerning pain, operation time, blood loss, blood substitution and complications, no major differences could be seen.

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