• Bishwanath Sharma, Om Biju Panta, Bikash Raj Thapa, and Suresh Thapa.
• Department of Radiology and Imaging, Bheri Hospital, Banke, Nepalgunj, Nepal.
• JNMA J Nepal Med Assoc. 2023 Feb 1; 61 (258): 123126123-126.

IntroductionSpondylolysis can either be asymptomatic or can cause significant low back pain. It is sometimes associated with the translation of one vertebra over another and is termed spondylolisthesis. The aim of the study was to find out the prevalence of spondylolysis among patients without low back pain in a diagnostic centre.MethodsA descriptive cross-sectional study was carried out in a referral diagnostic centre from 15 December 2018 to 14 December 2021 . Ethical approval was obtained from the Nepal Health Research Council (Reference number: 2903). Images of a computed tomography scan of the abdomen performed for other abdominal causes and without low back pain were reconstructed in the sagittal and coronal plane and evaluated for the presence of spondylolysis and spondylolisthesis in the lumbar spine. Demographic data were taken from the hospital records. Convenience sampling method was used. Point estimate and 95% Confidence Interval were calculated.ResultsAmong 768 patients without low back pain, spondylolysis was found in 59 (7.68%) (5.80-9.56, 95% Confidence Interval). Spondylolisthesis was found in only 16 (27.1%) individuals with spondylolysis. The majority of spondylolysis cases were encountered in L5 level in 54 (91.53%). The mean age of patients with spondylolysis was 41.9±14.46 years. Male to female ratio was 1:1.18.ConclusionsThe prevalence of spondylolysis in our study was found to be similar to other studies done in similar settings.Keywordslow back pain; spondylolisthesis; spondylolysis.

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