What is deep gluteal syndrome?
Deep gluteal syndrome is a group of extra-spinal conditions in which the sciatic nerve is irritated or compressed in the deep buttock. Piriformis syndrome is one possibility, but fibrous bands, scar, the gemelli–obturator internus complex, hamstring origin, ischiofemoral impingement, vessels, a mass or anatomical variation may also be responsible.
Symptoms
- Deep buttock pain that may radiate down the posterior thigh or leg.
- Burning, tingling, electric pain or a pulling sensation along the sciatic nerve.
- Aggravation with prolonged sitting, driving, running, stairs or deep hip motion.
- Deep tenderness behind the hip.
- In more advanced nerve injury, altered foot sensation, weakness or a limp.
Diagnosis and differential
No single test confirms the syndrome. Assessment maps the pain and provoking activities, examines the lumbar spine, hip and sacroiliac joint, and checks strength, sensation and reflexes. Provocative tests are interpreted as a pattern rather than in isolation.
Pelvic MRI may identify scar, mass, impingement or hamstring pathology. MR neurography and EMG are selected for specific questions. An image-guided injection around the muscle or nerve may have diagnostic and therapeutic value but does not replace a full differential.
Nonoperative treatment
Initial care may include sitting and load modification, hip- and pelvis-focused physiotherapy, gentle nerve mobility without aggressive stretching, treatment of surrounding tissues and medication when appropriate. An image-guided injection may reduce irritation and facilitate rehabilitation. Botulinum toxin is reserved for a coherent muscle-related mechanism.
Surgical decompression
Persistent disabling pain with a coherent history, examination and imaging or block response may lead to sciatic nerve decompression after adequate conservative care. The nerve is identified in healthy tissue and followed through the deep gluteal space; only the responsible band, scar, vessel or muscle component is released.
Evidence is mainly from observational studies and case series. Rehabilitation remains necessary, and complete pain relief cannot be guaranteed—particularly when pain is longstanding or multifactorial.
References
- Martin HD, Reddy M, Gómez-Hoyos J. Deep gluteal syndrome. Journal of Hip Preservation Surgery. 2015;2(2):99–107. doi:10.1093/jhps/hnv029
- Park JW, Lee YK, Lee YJ, et al. Deep gluteal syndrome as a cause of posterior hip pain and sciatica-like pain. Bone & Joint Journal. 2020;102-B(5):556–567. doi:10.1302/0301-620X.102B5.BJJ-2019-1212.R1
- Kay J, de Sa D, Morrison L, et al. Surgical management of deep gluteal syndrome causing sciatic nerve entrapment. Arthroscopy. 2017;33(12):2263–2278.e1. doi:10.1016/j.arthro.2017.06.016