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Arch Orthop Trauma Surg. 1998;117(3):177-9.

Bilateral piriformis syndrome after total hip arthroplasty.

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Department of Orthopaedics, Shimane Medical University, Izumoshi, Shimaneken, Japan.


We present the case of a 39-year-old man with bilateral piriformis syndrome 4 and 6 years after two cementless total hip arthroplasties, respectively. During surgical exploration, each sciatic nerve was found to be entrapped by a tense piriformis muscle and hypertrophic posterior hip capsule. The sciatic-type pain was relieved after sectioning each piriformis muscle with external neurolysis. This is the first reported case of piriformis syndrome after total hip arthroplasty.

[Indexed for MEDLINE]

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