Arooj S, Azeemuddin M. Piriformis syndrome-a rare cause of extraspinal sciatica [J]. J Pak Med Assoc, 2014, 64(8):949-951.
[2]
Huang J T, Chen H Y, Hong C Z, et al. Lumbar facet injection for the treatment of chronic piriformis myofascial pain syndrome: 52 case studies [J]. Patient Prefer Adher, 2014, 20(8): 1105-1111.
Jeong H S, Lee G Y, Lee E G, et al. Long-term assessment of clinical outcomes of ultrasound-guided steroid injections in patients with piriformis syndrome[J]. Ultrasonography, 2015, 34(3): 206-210.
[5]
Misirlioglu T O, Akgun K, Palamar D, et al. Piriformis syndrome: comparison of the effectiveness of local anesthetic and corticosteroid injections: a double-blinded, randomized controlled study [J]. Pain Physician, 2015, 18(2): 163-171.
[6]
Al-Al-Shaikh M, Michel F, Parratte B, et al. An MRI evaluation of changes in piriformis muscle morphology induced by botulinum toxin injections in the treatment of piriformis syndrome [J]. Diagn Interv Imaging, 2015, 96(1): 37-43.