ABSTRACT Purpose: High tibial osteotomy (HTO) is an important surgical treatment of knee osteoarthritis. The purpose of this study was to explore the long-term clinical efficacy of closing wedge high tibial osteotomy (CWHTO) in the treatment of osteoarthritis of knee joint. Methods:20 patients with knee osteoarthritis were treated with CWHTO from June 2005 to December 2007, including 17 females and 3 males, ranging in age from 43 to 76 years old with an average of (57.8±8.05) years old. According to the clinical symptoms and imaging examination, all patients were diagnosed with knee osteoarthritis and varus deformity. Patients were followed up in pre- and post-operative 1 year, 5 years and 10 years, respectively. VAS, KSS and postoperative complications (fibula nerve injury, the fracture nonunion) were evaluated. Results: 4 in 20 patients were lost and 16 were followed up. The follow- time is from 9 to 10 years with an average of (10.0±0.81) years. At the postoperative follow-up of 1 year,5 years and 10 years, VAS decreased from the preoperative (7.88±1.15) to (3.19±0.91), (3.44±0.96) and (3.69±1.20), the difference was statistically significant (P<0.05). Clinical score of KSS increased from the preoperative (61.94±5.74) to (75.50±4.62), (80.13±3.97) and (77.38±6.40), the difference was statistically significant (P<0.05). functional score of KSS increased from the preoperative (62.81±13.03) to (77.5±8.56), (81.88±6.55) and (76.88±10.78), the difference was statistically significant (P<0.05). All the incisions were healed well and the patients were no any complications such as fibula nerve injury and fracture nonunion. Conclusion:Close wedge high tibial osteotomy screw wire internal fixation in the treatment of knee OA has a better outcome, and it can prevent or delay the progress of KOA. Long-term follow-up results show that CWHTO can achieve the same effect as total knee arthroplasty. |