Clinical Presentation
The paper [PMID:38787984] highlights that while most osteochondral lesions typically occur on the medial talar dome, lesions involving the lateral process of the talus impacting the subtalar joint are uncommon yet can present with substantial clinical symptoms.
Diagnosis
Although not explicitly detailed in [PMID:38787984], the necessity for precise imaging modalities to diagnose such rare lesions on the lateral process of the talus is implied, underscoring the importance of advanced imaging in clinical diagnosis [PMID:38787984].
Management
In a case report [PMID:38787984], arthroscopic debridement and microfracture were successfully employed for bilateral osteochondral lesions on the lateral process of the talus affecting the subtalar joint, suggesting these techniques as viable surgical interventions when conservative treatments fail.
In a study of 22 patients undergoing subtalar arthrodesis using interpositional frozen femoral head structural allograft, 90% achieved union with a mean time of 15.5 weeks [PMID:18549750].
Complications
Complications noted in the study included nonunion in 2 patients, varus malalignment in 1, persistent subfibular impingement in 1, sural neuralgia in 1, and prominent hardware in 2 patients [PMID:18549750].
Prognosis & Follow-up
The mean AOFAS hindfoot score improved from 21 to 71 points (p < 0.05) at a mean follow-up of 35.8 months [PMID:18549750].
References
1 Yabiku H, Matsui T, Sugimoto T, Nagamoto H, Tome Y, Nishida K et al.. Arthroscopic debridement and microfracture for bilateral osteochondral lesions on the lateral process of the talus involving the subtalar joint: A case report. Medicine 2024. link 2 Garras DN, Santangelo JR, Wang DW, Easley ME. Subtalar distraction arthrodesis using interpositional frozen structural allograft. Foot & ankle international 2008. link
2 papers cited of 3 indexed.