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- Title
The postoperative shorter meniscal width was the risk factor of lateral meniscal extrusion in the middle portion for juvenile and adolescent knees with discoid lateral meniscus.
- Authors
Mochizuki, Tomoharu; Tanifuji, Osamu; Watanabe, Satoshi; Sato, Takashi; Endo, Naoto
- Abstract
Purpose: The study aim was to clarify the risk factors for postoperative meniscal extrusion in a middle portion in juvenile and adolescent knees with DLM. Methods: Forty-six patients with symptomatic DLM who underwent surgery were retrospectively assessed. Inclusion criteria were set as follows: (1) aged ≤ 17 years with an open growth plate, (2) preoperative and postoperative follow-up MRI, and 3) reshaping surgeries comprising of saucerization alone or with meniscal repair. Average (95%CI) age during surgery, body mass index (BMI), and follow-up duration were 12 years (11–13), 19.9 kg/m2 (18.7–21.0), and 26.4 months (19.5–33.3), respectively. Age, sex, sports activities, BMI, postoperative rehabilitation, preoperative shift of DLM by Ahn's classification, surgical procedures, postoperative meniscal width of all portions, and meniscal healing were analyzed. Results: Postoperatively, eight knees in the no-extrusion group and 38 knees in the extrusion group were observed. In the univariate logistic regression analysis, shorter meniscal width in a middle portion (OR = 1.580, p = 0.006), shorter minimum width of all portions (OR = 1.674, p = 0.024), and meniscal healing (OR = 0.160, p = 0.028) were the risk factors for meniscal extrusion in a middle portion. Multiple logistic regression analysis demonstrated that shorter meniscal width in a middle portion was the risk factor. Conclusions: As the clinical relevance, to prevent postoperative meniscal extrusion of the middle portion with DLM, surgeons are necessary to pay attention to maintain the adequate meniscal width for juvenile and adolescent knees. Level of evidence: III
- Subjects
MENISCUS surgery; SURGICAL complications; KNEE; MAGNETIC resonance imaging; MENISCUS (Anatomy)
- Publication
Knee Surgery, Sports Traumatology, Arthroscopy, 2021, Vol 29, Issue 9, p2857
- ISSN
0942-2056
- Publication type
Article
- DOI
10.1007/s00167-020-06188-x