Spondylolysis is a bone defect in the pars interarticularis of the vertebra. It usually presents bilaterally and affects L5 (85–95%). An injury in the proximal lumbar vertebrae is less common. 1– 3 ...

Objective: To determine whether the location of spondylolysis in the lumbar spine of athletes differs with biomechanical factors. Methods: Single photon emission computerised tomography and reverse ...