Arthroscopy: The Journal of Arthroscopic & Related Surgery
Original Article With Video IllustrationSecond-Look Arthroscopic Assessment of Cartilage Regeneration After Medial Opening-Wedge High Tibial Osteotomy
Section snippets
Methods
This study was a retrospective, nonrandomized, sequential review. Between January 2009 and January 2010, 182 patients underwent HTO for medial-compartment osteoarthritis of the knee at the Department of Orthopedic Surgery, Murup Hospital, Gyeongnam, South Korea. Inclusion criteria for HTO were as follows: symptomatic medial osteoarthritis or articular cartilage lesions of the knee joint in active patients, varus malalignment (minimum of 10 mm of medialization of the weight-bearing axis from the
Clinical and Radiographic Results
We evaluated 14 knees in 14 men and 145 knees in 145 women, comprising 159 knees in 159 patients. Approximately 24.9 months after surgery (range, 22 to 26 months), the patients underwent second-look arthroscopic examinations. The mean age (± standard deviation) of the patients at the time of second-look arthroscopy was 60.2 ± 6.8 years (range, 41 to 75 years). The mean Knee Society knee score improved significantly from 68.5 ± 11.9 before the operation to 92.5 ± 7.1 at follow-up 2 years
Discussion
The principal findings of this study showed that the degenerative cartilage was partially regenerated in almost all cases and fully regenerated in only some cases after medial opening-wedge HTO, and postoperative limb alignment influenced the clinical outcome and regeneration of the cartilage after medial opening-wedge HTO. This study evaluated regeneration of the articular cartilage after a medial opening-wedge HTO for knees with medial-compartment osteoarthritis and assessed the clinical
Conclusions
The degenerated cartilage of the medial femoral condyle and medial tibial plateau could be partially or entirely covered by newly regenerated cartilage at 2 years after adequate correction of varus deformity by medial opening-wedge HTO without cartilage regeneration strategies.
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The authors report that they have no conflicts of interest in the authorship and publication of this article.