胫骨高位截骨联合微骨折术治疗膝内侧间室骨关节炎

Clinical study of high tibial osteotomy combined with microfracture in treatment of medial unicompartmental knee osteoarthritis

目的探讨胫骨高位截骨术联合关节镜下微骨折术治疗膝内侧间室骨关节炎的临床疗效。方法2014年10月至2016年10月西安交通大学第二附属医院骨一科收治的膝关节内侧间室骨关节炎患者58例,活动度均正常,保守治疗6个月无效,排除炎症性关节炎及膝外侧骨关节炎,随机分为两组,29例采用胫骨高位截骨术(HTO)联合关节镜下微骨折术(微骨折组),29例采用HTO联合关节镜下清理术(清理组),使用视觉模拟评分(VAS)、美国特种外科医院(HSS)膝关节功能评分、国际膝关节文献委员会(IKDC)评分对两组患者术前及术后12个月进行对比,使用负重位双下肢全长X线片测量术前、术后胫骨近端内侧角(MPTA)和股胫角(FTA),并对术前及术后12个月进行对比,使用配对t检验和卡方检验统计学分析。结果所有患者均获得随访,平均随访(13.5±1.6)个月,两组患者术后12个月VAS评分、HSS评分、IKDC评分较术前均有明显改善,两组术前及术后12个月的VAS、HSS、IKDC评分差值对比,微骨折组优于清理组,差异有统计学意义(t=2.316、4.063、3.121 P<0.05),角度差值(MPTA、FTA)对比,(t=1.248、1.614),差异无统计学意义(均为P>0.05)。结论HTO联合关节镜下微骨折术或清理术治疗膝内侧间室骨关节炎,均能获得良好的临床疗效,但前者效果更佳,可能与存在更好的软骨修复有关,值得临床推广。

Objective To explore the clinical effect of high tibial osteotomy(HTO)combined with arthroscopic microfracture in the treatment of medial unicompartmental knee osteoarthritis.Methods From October 2014 to October 2016,58 cases with medial unicompartmental knee osteoarthritis were enrolled in the study,who were treated in the first department of orthopaedics of the second affiliated hospital of Xi'an Jiaotong University.Patients with normal range of motion and undergone conservative therapy for six months were included.Patients with inflammatory arthritis and lateral knee osteoarthritis were excluded.All the cases were randomly divided into two groups,29 cases with HTO combined with arthroscopic microfracture(microfracture group),29 cases with HTO combined with arthroscopic debridment(debridment group).Visual analogue scale(VAS),Hospital for Special Surgery(HSS),and International Knee Documentation Committee(IKDC)scores were used to compare the two groups before and 12 months after surgery.According to the full-length X-ray film of both lower limbs in weight-bearing position,medial proximal tibial angle(MPTA)and femur-tibia angle(FTA)were measured and used to compare the two groups before and 12 months after surgery.Paired t test and chi-square test were used for statistical analysis.Results All the patients were followed up for(13.5±1.6)months.The VAS,HSS and IKDC scores of the two groups at 12 months after surgery were improved comparing with the scores before surgery.The score differences of the microfracture group before and 12 months after surgery were superior to the debridment group,the difference was statistically significant(VAS t=2.316,HSS t=4.063,IKDC t=3.121,all P<0.05).The MPTA and FTA differences between the two groups before and 12 months after the surgery were not statistically significant(t=1.248,1.614,both P>0.05).Conclusion HTO combined with arthroscopic microfracture or debridement can achieve good clinical efficacy in the treatment of medial unicompartmental knee osteoarthritis,and the microfracture has better clinical efficacy,which may be related to the existence of better cartilage repair,and is worthy of clinical promotion.