• Ahmed Elsawaf, Tariq Elamam Awad, and Salem S Fesal.
• Department of Neurosurgery, Suez Canal University, Ismailia, Egypt. ahmed_alsawaf@yahoo.com.
• Eur Spine J. 2016 Nov 1; 25 (11): 3385-3392.

ObjectSymptomatic sacral perineural cysts are extremely rare. The aim of this retrospective study is to investigate the outcome of 15 consecutive patients treated by microsurgical resection of the cyst and to review the literature.MethodsThe authors retrospectively reviewed their clinical data archive from 2002 to 2014. Fifteen patients who were operated on due to symptomatic sacral perineural cysts were enrolled in the study. Patients' symptoms, radiographs, intra-operative findings, and clinical results were evaluated. All 15 patients underwent microsurgical excision of the cyst. The literature on this topic available in PubMed was also reviewed.ResultsThere were 5 men and 10 women included in the study, with a mean age of 31 years (range 7-60 years). Preoperative symptoms include low back pain, coccydynia, buttock pain, perianal pain and radicular pain. All of the patients underwent surgical resection. The mean follow-up was 54 months (range 3-160 months). All the patients experienced complete or substantial resolution of the preoperative local and radicular pain after surgery.ConclusionsCyst excision is an effective and safe technique for symptomatic sacral perineural (Tarlov) cysts. Careful patient selection is vital to the management and treatment of this difficult and controversial pathology.

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