Retaining the medial collateral ligament in high tibial medial open-wedge osteotomy mostly results in post-operative intra-articular gap reduction

Authors
Abolfazl Bagherifard, Mahmoud Jabalameli, Alireza Mirzaei, Akbar Khodabandeh, Majid Abedi, Hooman Yahyazadeh
Publication date
2020/5
Journal
Knee Surgery, Sports Traumatology, Arthroscopy
Volume
28
Pages
1388-1393
Publisher
Springer Berlin Heidelberg
Description
Purpose
The current study aimed to evaluate how open-wedge high tibial osteotomy (OWHTO) without the release of medial collateral ligament (MCL) changes in vivo intra-articular joint space after the surgery.
Methods
Patients with varus malalignment of the knee with an indication for OWHTO were included in this study. The intra-articular gap was measured before and 30 min after OWHTO without MCL release using a series of calibrated nerve hooks. The association of post-operative gap size with varus angle, medial proximal tibial angle (MPTA), lateral distal femoral angle (LDFA) and joint line convergence angle (JLCA) was also assessed.
Results
A total of 42 knees from 38 patients were evaluated. The mean size of the intra-articular gap of the medial compartment was 5.2 ± 1 mm before the osteotomy and 3.1 ± 2.2 mm at 30 min post-osteotomy. The size of the intra-articular gap decreased post …
 
 

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