Piriformis syndrome after percutaneous endoscopic lumbar discectomy via the posterolateral approach
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Percutaneous endoscopic lumbar discectomy (PELD) can be performed under local anesthesia with intravenous analgesics. To define the incidence of piriformis syndrome (PS) after PELD via the posterolateral approach under local anesthesia compared to that of general patients presenting with low back pain with/without lower leg pain. The incidence and time of occurrence of positive FAIR test after PELD within a 3-month follow-up period were evaluated retrospectively, and compared with the prevalence of general patients who visited the pain clinic for LBP with/without lower leg pain. Factors that may increase the incidence of PS after PELD were also evaluated. There was no patient with positive FAIR test immediately after PELD in the operation room and before walking. The prevalence of PS in general patients was 317/2,320 (13.7%); however, the incidence of PS after PELD within a 3-month follow-up period was 61/151 (40.4%), peaking at 32 days. High anxiety scale scores during operation led to increased incidence of PS after PELD. PELD under local anesthesia with high level of anxiety may increase the incidence of PS after walking, peaking around the first month, compared with the results for general patients with low back pain with/without lower leg pain.
KeywordsDiskectomy Endoscopy Lumbar vertebrae Percutaneous Piriformis syndrome
Conflict of interest
No funds were received in support of this study.
- 4.Joseph MC, Barry G (2001) General considerations of pain in the low back, hips, and lower extremities. In: Loeser JD (ed) Bonica’s management of pain, 3rd edn. LWW, Philadelphia, p 1494Google Scholar
- 6.Spielberg CD, Gorsuch RL, Lushene RE (1970) Manual for the State-Trait Anxiety Inventory. Consulting Psychologist Press, Palo AltoGoogle Scholar
- 15.Lee S, Moon CS, Sul D, Lee J, Bae M, Hong Y, Lee M, Choi S, Derby R, Kim BJ, Kim J, Yoon JS, Wolfer L, Kim J, Wang J, Hwang SW, Lee SH (2009) Comparison of growth factor and cytokine expression in patients with degenerated disc disease and herniated nucleus pulposus. Clin Biochem 42:1504–1511PubMedCrossRefGoogle Scholar
- 16.Tolonen J, Grönblad M, Vanharanta H, Virri J, Guyer RD, Rytömaa T, Karaharju EO (2006) Growth factor expression in degenerated intervertebral disc tissue. An immunohistochemical analysis of transforming growth factor beta, fibroblast growth factor and platelet-derived growth factor. Eur Spine J 15:588–596PubMedCrossRefGoogle Scholar