A case of subchondral insufficiency fracture of the knee potentially caused by mediolateral knee laxity without structural abnormalities.

IF 2.2 3区医学 Q2 ORTHOPEDICS BMC Musculoskeletal Disorders Pub Date : 2025-02-25 DOI:10.1186/s12891-025-08452-y

Yasushi Oshima, Nobuyoshi Watanabe, Yoshiteru Kajikawa, Tadahiko Yotsumoto, Yoshinobu Watanabe, Tokifumi Majima

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引用次数: 0

Abstract

Background: Meniscal injury and/or extrusion have been indicated as causes of subchondral insufficiency fracture (SIFK). However, mediolateral knee laxity has not been discussed as a risk factor. This is a case report of SIFK potentially caused by mediolateral laxity in the absence of a meniscal disorder.

Case presentation: A 59-year-old male patient presented with SIFK in the medial femoral condyle without meniscal injury or extrusion. Tibial condylar valgus osteotomy (TCVO) was performed, and the preoperative total mediolateral laxity of 8° in extension and 6° in 80° flexion decreased to 6° and 4°, respectively, two years postoperatively. Moreover, the magnetic resonance images revealed no bone marrow lesions, and the knee injury and osteoarthritis outcome score improved from 61.4 to 79.7.

Conclusion: A case of SIFK with mediolateral laxity, without meniscal disorder, was successfully treated by TCVO, indicating knee laxity as a potential risk factor for SIFK.

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来源期刊

BMC Musculoskeletal Disorders 医学-风湿病学

CiteScore

3.80

自引率

8.70%

发文量

1017

审稿时长

3-6 weeks

期刊介绍： BMC Musculoskeletal Disorders is an open access, peer-reviewed journal that considers articles on all aspects of the prevention, diagnosis and management of musculoskeletal disorders, as well as related molecular genetics, pathophysiology, and epidemiology. The scope of the Journal covers research into rheumatic diseases where the primary focus relates specifically to a component(s) of the musculoskeletal system.