Movement of the Sacroiliac (SI) Joint, Comparing Conventional RSA With the Sectra Implant Movement Analysis.

ASLR; CT; SI joint movement: stright leg raise with 1 kg load

Fig.Four; CT; SI joint movement: One side figure of four position with 1 kg load

Supine; CT; SI joint movement: supine position

ASLR; RSA; SI joint movement: stright leg raise with 1 kg load

Fig.Four; RSA; SI joint movement: One side figure of four position with 1 kg load

Supine; RSA; SI joint movement: supine position