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External rotation stress test
2%
32/1916
Resisted inversion
6%
106/1916
Resisted dorsiflexion
4%
70/1916
Resisted eversion
88%
1682/1916
Resisted plantar flexion
1%
23/1916
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The peroneal tendons are located posterior to the lateral malleolus and are a common source of pathlogy in refractory ankle sprains. This patient is complaining of subluxating peroneal tendon(s) as a result of a torn superior retinaculum. This can be tested with resisted eversion as the peroneal tendons evert the ankle. Maffulli et al concluded that an anatomic repair of the retinaculum leads to good results in higher demand patients. The review article by Philbin states that treatment in acute cases may consist of placing the foot and ankle in a plantarflexed, inverted, below-knee cast for 6 weeks or superior peroneal retinaculum (SPR) repair. Video V demonstrates peroneal tendon instability on physical exam.
3.9
(19)
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