Table 2.  Range of motion of the knee joint and hip joint.

Measurement	Lumbar spondylolysis	Without lumbar spondylolysis	P value
Hip range of motion (°)
Thomas (right)	4.5	4.8	0.926
Thomas (left)	4.4	4.8	0.847
Abduction (right)	47.4	43.8	0.395
Abduction (left)	48	44.2	0.357
Internal rotation (right)	65	62.4	0.483
Internal rotation (left)	65	64.5	0.64
External rotation (right)	30	36.3	0.293
External rotation (left)	30	35.4	0.26
Knee joint range of motion (°)
Extension angle (right)	−0.63	−0.74	0.701
Extension angle (left)	0	−0.49	0.921
Popliteal angle (right)	28	34.5	0.444
Popliteal angle (left)	18.1	35.2	0.025*
X-ray spine and pelvis parameters (°)
Lumbar lordosis	25.9	20.2	0.204
Pelvic inclination	46	41.7	0.395
Pelvic tilt	22.4	20.1	0.679
Sacral slope	30.1	21.7	0.27
Pelvic incidence of lumbar lordosis	18.3	18.6	0.837

^*P<0.05.

Data are given as mean values.