Entrapment of the Sciatic Nerve by the Femoral Neck Following Closed Reduction of a Hip Prosthesis

The prevalence of sciatic nerve injury associated with dislocation of a hip prosthesis is <0.1%1-4. The severity of the nerve injury has been found to be related to the chronicity of the dislocation prior to joint reduction and to the location of the injury on the basis of intraneural topography2,4-6. To our knowledge, no previous patients with entwinement of the sciatic nerve around a total hip prosthesis following closed reduction of a dislocation have been reported. We describe the case of a patient in whom sciatic nerve injury occurred after repeated closed reduction of a dislocated hip prosthesis.