Delayed sciatic nerve compression following hamstring injury.

A 47-year-old man presented three months post-hamstring injury with posterior thigh and buttock pain, paraesthesia over the lateral part of the leg and dorsum of the foot and a foot drop. MRI identified a hamstring muscle injury with a lesion surrounding 20 cm of the proximal sciatic nerve consistent with an extensive haematoma. Surgical debridement and release was planned; however, his signs spontaneously resolved with rest, physiotherapy and splintage prior to surgery. There have been no other reports of a sciatic nerve lesion with neurological signs resolving without surgical exploration.