Development of the meniscus of the knee joint in human fetuses.

Discoid meniscus of the knee joint occurs at a higher incidence in the lateral than in the medial menisci. Although its developmental origin has been suggested, it remains unclear. To verify the developmental etiology, we examined the meniscus of the knee joint in 41 human fetuses (from 14 to 30 weeks of gestation) and 14 adults (from 56 to 91 years of age) comparatively.

Arthroscopic assessment for intra-articular disorders in residual ankle disability after sprain.

Background: After ankle sprain, there can be many causes of disability, the origins of which cannot be determined using standard diagnostic tools.

Hypothesis: Ankle arthroscopy is a useful tool in identifying intra-articular disorders of the talocrural joint in cases of residual ankle disability after sprain.

Study Design: Cohort study (diagnosis); Level of evidence, 2.

Diagnosis and treatment of combined intra-articular disorders in acute distal fibular fractures.

Background: Some patients have residual ankle pain and disability after the treatment of an ankle fracture, despite the fracture site being well aligned. We identified intra-articular disorders in distal fibular fractures and sought to clarify the results of their operative treatment.

Methods: This is a prospective, randomized study.