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J Foot Ankle Surg. 2012 Sep-Oct;51(5):579-82. doi: 10.1053/j.jfas.2012.06.010. Epub 2012 Jul 21.

Incidence of talar dome lesions with concomitant peroneal tendon pathologic features: a magnetic resonance imaging evaluation.

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Division of Foot and Ankle Surgery, Western Pennsylvania Hospital, Pittsburgh, PA 15224, USA.


Few studies have evaluated the incidence of talar dome lesions and injuries to the peroneal tendons occurring concomitantly. The purpose of our research was to evaluate the incidence of osteochondral lesions of the talus (OLT) with peroneal tendon pathologic features according to the magnetic resonance imaging (MRI) findings. A database search was conducted in the Department of Radiology at the Western Pennsylvania Hospital and Forbes Regional Campus for all MRI examinations ordered by attending physicians of the Department of Foot and Ankle Surgery from 2008 to 2010. A total of 810 MRI reports were reviewed, of which 198 contained a diagnosis of peroneal tendon pathologic features (e.g., tenosynovitis, split tears) or OLT (i.e., chondral, osteochondral, subchondral edema, cystic changes), or both. MRI scans were then reviewed to confirm the report findings and findings not identified in the report. A total of 76 patients were identified as having an OLT. Of these 76 patients, 49 had associated peroneal tendon pathologic features. MRI evaluation revealed that 49 (65.3%) of the 76 patients with a talar dome lesion had concomitant peroneal pathologic features. Talar dome lesions with concomitant tears/tendinopathy of the peroneus brevis were associated in 14.6%. The incidence of an OLT with tears/tenosynovitis of the peroneus longus was 10.6%, because tears/tendinopathy of both peroneal tendons was present in 18.6%. Tenosynovitis of the brevis and longus were seen in 21.3% of those with an OLT. Our findings suggest the need for an increased level of suspicion for injuries to the lateral ankle ligaments, peroneal tendon complex, and ankle joint when evaluating a patient with ankle instability and chronic pain.

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