Sapporo Medical Journal

Abstract : Osteoarthritis is the single most common cause of disability in older adults. A study reported that musculoskeletal disorders were much greater than previously thought and accounted for 6.8% of the factors contributing to decreased age productivity in patients worldwide. This study is a retrospective analytic observational study with a cross sectional approach to postoperative high tibial osteotomy (HTO) patients at Dr. Soetomo general hospital and Husada Utama hospital in Surabaya. It was found that the most gender data were women with 20 patients (86.9), the most age was 51-60 years with 12 patients (52.1%), the most BMI was obese with 11 patients (61.1%), and the KOOS score of the pain, symptoms, activity daily living, sports, and quality of life components are 89.29, 92.51, 93.61, 56.96, and 82.61. Based on the FTA angle, the most patients were varus 4 and valgus 6. In addition, there were a significant difference between the mean FTA angle and between VAS average before and after surgery (p=0.000) and (p=0.000). There is an improvement in terms of clinical, radiological, and satisfactory KOOS score