Comparison of the Therapeutic Effects of High Tibial Osteotomy of Different Bracing Angles with and Without Bone Graft
Objective To compare the functional outcomes and healing processes between open wedge high tibial osteotomy(OWHTO)with bone grafting and without bone grafting,while considering different osteotomy bracing angles.Methods A retrospective analysis was conducted on 41 patients diagnosed with knee osteoarthritis and treated with OWHTO in the Orthopaedics Department of Xuanwu Hospital of Capital Medical University between October 2019 and September 2022.The cohort comprised 13 males and 28 females,aged 43 to 76 years,with a mean age of(58.88±7.60)years.Osteotomies with an opening angle＞10 ° were classified as large gap,while those ≤10 ° were classified as small gap.The patients were categorized into three groups:Group A(opening angle＞10 ° with autologous bone grafting),Group B(opening angle＞10 ° without bone grafting),and Group C(opening angle ≤10 ° without bone grafting).Comparisons were made among the three groups regarding bone healing and knee joint function post-surgery.Results The patients were followed up for 12 to 24 months,with a mean follow-up duration of(13.76±3.35)months.At 3 months postoperatively,there was no statistically significant difference in bone healing among the groups(P＞0.05),suggesting that different opening angles did not impact early bone healing.However,at 6 and 12 months postoperatively,Group A showed significantly greater medial gap filling compared to Groups B and C(P＜0.05).No statistically significant difference was observed in medial gap filling between Groups B and C(P＞0.05).Functional differences among the groups at 3,6,and 12 months postoperatively were not statistically significant(P＞0.05),indicating that neither the osteotomy opening angle nor bone grafting influenced early functional recovery.Conclusion Autogenous bone grafting did not significantly enhance knee function improvement after OWHTO,but it was beneficial for healing the innermost part of the bone gap.
high tibial osteotomyosteotomy bracing angleautologous bone graft
万方数据
维普
