Prevalence of incidental lumbosacral spondylolysis on multidetector computed tomography in Nepalese population

Spondylolysis is aunilateral or bilateralanatomical defect of pars interarticularis vertebral arch and commonly occurs at L5-S1 level (85-95%) L4-5level (5-15%). It one the most common causes lower back pain (LBP), prevalent in approximately 6% population can progress to spondylolisthesiswhich turn cause radiculopathy. Although majority patients may remain asymptomatic, symptomatic early stages usually benefit from conservative treatment. Hence, identification very important multidetector CT (MDCT) scan sensitive technique diagnose spondylolysis spondylolisthesis. The prevalence long-term prognosis still not known context Nepal. This study aims find out incidental lumbosacral on inNepalese population. Cross-sectional descriptive studydata was collected 2629 abdomen pelvis performed during four half year’s period Nepal Medical College Teaching Hospital. Presence evaluated multiplanar volumetric images. Associated feature like spondylolisthesis also noted. Data obtained compiled analyzed using Statistical Package Social Services – 20 (SPSS-20). Out total patients, 1135 were males (43.1%) 1494 females (56.9%). Youngest 14 year oldest 102 old. There linear positive relation between age frequency spondylolysis. Incidental seen 146 with overall 5.5%. which 71 6.2 % 75 5.0 prevalence.Females nearly equally affected as males. Frequency more below 60 (57.5%) compared above group (42.5%). Commonest location level, 134 (91.8%) followed by L4-L5 8 (5.5 %) both levels 4 (2.7 %). Spondylolisthesis 43 (29.5 spondylolysis, 15 (34.9%) 28 (65.1%). In presence had statistically significant than (p value<0.05). it concur that established literatures. However, this shows are only slightly less unlike shown previous studies.