Clinical study of intercondylar fossa formation to prevent intercondylar fossa impingement after high tibia osteotomy / 中国骨伤

OBJECTIVE@#To observe the clinical efficacy of intercondylar fossa plasty in preventing intercondylar fossa impingement syndrome after high tibial osteotomy.@*METHODS@#From August 2018 to August 2020, 84 patients with inverted knee osteoarthritis were treated by arthroscopy combined with high tibial osteotomy, and were divided into two groups with 42 cases in each group according to different surgical methods. In the intercondylar fossa plasty group, there were 13 males and 29 females, age ranged from 52 to 67 years old with an average of(58.27±4.32) years old, and arthroscopic intercondylar fossa plasty was performed first, and then high tibial osteotomy. In the arthroscopic cleansing group, 16 males and 26 females, age ranged from 50 to 71 years old with an average of (59.02±5.14) years old, underwent arthroscopic cleansing and then high tibial osteotomy. Postoperative treatment was evaluated using visual analogue scale(VAS), hospital for special surgery (HSS) score for the knee, and the occurrence of intercondylar percussa impingement.@*RESULTS@#All 84 patients were followed up, the duration ranged from 12 to 18 months with an average of (14.1±1.6) months. The VAS and HSS score of knee joint at 6, 12 and 18 months after surgery were significantly improved compared with preoperative period, and there was no significant difference between the two groups (P>0.05), but the incidence of intercondylar fossa index and intercondylar fossa impact between the two groups was significantly compared 18 months after surgery (P<0.05).@*CONCLUSION@#Intercondylar fossa plasty can effectively prevent the incidence of intercondylar fossa impact after high tibial osteotomy, and has a more significant effect on postoperative knee pain and function improvement.

High Tibia Osteotomy for a Posterior Root Tear of the Medial Meniscus / 대한정형외과학회잡지

Posterior root tear of the medial meniscus which is frequently unrecognized is a common injury of meniscus that often results in serious consequences in a knee joint. After medial meniscus posterior root tear (MMPR), there is a significant increase in tibio-femoral contact pressure concomitant with altered knee joint kinematics. This injury frequently leads to meniscal extrusion, and thus the transmission of circumferential hoop stresses would be impaired, which condition is biomechanically similar to that of total meniscectomy. For these reasons, several methods (conservative treatment, meniscectomy, repair, or unicompartmental knee arthroplasty) have been developed for treatment of MMPR, many of which have shown good clinical results. However, the methods of MMPR treatment are still debatable. This article presents a review of the current strategies for treatment of common injuries to these MMPR and clinical results of high tibia osteotomy for MMPR after failed conservative treatment.