Entrapment Neuropathy of the Sciatic Nerve Caused by a Paralabral Cyst: Three Cases Treated Arthroscopically: A Case Report.

CASE: Three patients with sciatica were referred to our outpatient clinic between 2007 and 2012. Magnetic resonance imaging (MRI) of the hip showed compression of the sciatic nerve by a perineural cyst arising from a paralabral cyst. All 3 patients underwent arthroscopic decompression. Upon follow-up, the mean visual analog scale scores for pain had improved from 7.3 to 0.3. MRI showed no evidence of recurrence of the cyst in any of the patients.

CONCLUSION

Arthroscopic treatment for entrapment neuropathy of the sciatic nerve caused by a paralabral cyst was effective for improving symptoms; at the final follow-up, none of the patients had experienced recurrence of the cyst.