Efficacy and Gait Analysis of Arthroscopic Debridement Combined with High Tibial Osteotomy for Varus-Type Knee Oste
Wang Jiangjing
Zhang Lina
Sun Jingcun
Qi Jia
Abstract：Objective To explore the clinical efficacy and gait of arthroscopic debridement combined with high tibial osteotomy in patients with varus-type knee osteoarthritis.Methods Sixty-two patients(66 knees)with varus-type knee osteoarthritis admitted from January 2022 to June 2023 were enrolled,23 males and 39 females;aged 46～65 years,average(51.4±7.3)years.After routine full-length weight-bearing X-rays,the femorotibial angle(FTA)determined the osteotomy amount.Under spinal or general anesthesia,high tibial osteotomy was performed after arthroscopic exploration and debridement.Follow-up was conducted at 3,6,9 and 12 months post-operatively.The femorotibial angle,Insall-Salvati(IS)index,visual analogue scale(VAS)and hospital for special surgery(HSS)knee score were recorded.Three-dimensional gait data including knee flexion/extension,varus/valgus,internal/external rotation angles and coronal plane moment were collected and compared with ten healthy volunteers.Results All patients were followed for 12～18 months(mean 14.2±3.3 months).Bone healing time was 12～20 weeks,mean(13.3±2.1)weeks.At 12-month follow-up,the femorotibial angle decreased from(187.3±2.6)°pre-operatively to(167.0±2.1)°;the IS index increased from(1.0±0.2)to(1.1±0.1);the VAS decreased from(5.4±1.3)to(0.9±0.2);and the HSS score increased from(68.2±5.3)to(88.2±4.9)(P＜0.05).The excellent-good rate was 93.9％.At 9 and 12 months,knee varus/valgus,internal/external rotation,flexion/extension angles and coronal adduction moment showed no significant differences compared with normal gait(P＞0.05).Conclusion For varus-type knee osteoarthritis patients,arthroscopic debridement combined with high tibial osteotomy can significantly improve lower-limb varus deformity,promote knee function recovery and relieve pain.At 9 months post-operatively,gait is not significantly different from normal gait,with significant clinical effects.
Keywords：arthroscopic debridementhigh tibial osteotomyvarusosteoarthritisgait analysis
Publication Date：2025-10-25
Online Publishing Date：2025-11-11(First online date of this platform, not the publication date of the document)
Pages：5( 903-907 )