Hi, Thanks for writing in. Lumbosacral transitional vertebras are common within the spine, and their association with low back pain has been debated in the literature for nearly a century. LSTVs include sacralization of the lowest lumbar vertebral body and lumbarization of the uppermost sacral segment. These vertebral bodies demonstrate varying morphology, ranging from broadened transverse processes to complete fusion. Low back pain associated with an lumbosacral transitional vertebra may arise from the level above the transition, the contralateral facet when unilateral, and/or the anomalous articulation when present. You can participate in sports but need to be cautious while playing contact sports.