The spondylolysis in Thais.

ABSTRACT

93 Thai skeletons, 49 male and 44 female, or 465 lumbar vertebrae, 245 males and 220 females, were studied for Spondylolysis. Spondylolysis was found in 11 of 465 lumber vertebrae, 5 male and 6 female. It occurred at the third lumbar vertebra in 1 case, at the fourth lumbar vertebra in 4 cases and at the fifth lumber vertebra in 6 cases. In Thais, spondylolysis has been classified into three patients, the defect occuring bilaterally at the lamina in 9 cases, the defect at the lamina being unilateral in 1 case and the defect at the spine called unfused spine (Spinabifida) in 1 case.