Changes in the patellar height following open wedge high tibial osteotomy

Abstract

Genu varum of the knee is a predisposing factor for osteoarthritis of the medial femoro-tibial compartment. High tibial osteotomy is the surgery of choice for such patients. Patello-femoral abnormalities have a negative effect on the prognosis of high tibial osteotomy. The aim of this study is to assess the changes in patellar height after medial open wedge high tibial osteotomy.Our study was performed in kafr el sheikh university hospital, orthopedic department during the period 2018-2019 on 30 patients.All patients were subjected to thorough clinical and radiological examination and follow up of all patients with Modified Hospital for Special Surgery knee scoring scale (modified HSS), was utilized and compared with its pre-operative valuesThere was significant decrease of patellar height from preoperatively postoperatively; this difference was statistically highly significant.The conclusion was that the High tibial osteotomy using the medial opening wedge technique causes reduction in patellar height due to relative joint line elevation and obliquity and it may be almost inevitable after this type of osteotomy.