lumbo-pelvic instability and form closure, force closure에 관한 논문, 개념들

[문형철]

요추-골반의 안정성에 관한 개념이다

self lock mechanism

form closure and force closure

main 논문.

Insufficient lumbopelvic stability. review article.pdf

The relationship of the sacroiliac joint, stabilization mus.pdf

Clinical biomechanics of the SI joints

The self-locking mechanism of the pelvis is called form or force closure. Form closure is a feature of

the anatomy of the SI joints, mainly their flat surfaces, and promotes stability. Unfortunately, these flat surfaces are vulnerable to shear forces such as can occur during walking. Recent work by Pool-Goudzwaard et al. (1998) has demonstrated how muscles, ligaments and the thoracolumbar fascia aid in stabilizing the pelvis, thus achieving force closure. This is necessary during walking when unilateral loading of the legs introduces shear forces, and the muscle-ligament-fascia system is required to stabilize the pelvis by compressing the SI joints. The sacrotuberous and long, dorsal sacroiliac ligaments are responsible for limiting nutation and counter-nutation, respectively. Insufficient ligamentous tension will decrease force closure. Three muscle slingsFa longitudinal, a posterior oblique and an anterior oblique slingFare the active components in the pelvic stabilization system (see Figs. 1 and 2). The muscular slings are described in Table 1.

[윤연우]

잘보았습니다.

[송영석]

천장관절의 안정성은 구조적 폐쇄 form closure, 근육 인대, 근막 등에 의한 장력의 폐쇄 force closure 로 구성된다. form closure은 flat surface 가 주로 안정성에 기여하는데, 걸을때 발생한 share force에 취약하다. force closure은 1. longitudinal sling (multifidus attaching to the sacrum, deep layer of the thoracolumbar fascia, long head of biceps attaching to the sacrotuberous ligament), 2. posterior oblique sling(latissimus dorsi, contralateral gluteus max, biceps femoris) 3. anterior oblique sling(pectoralis, ext oblique, int oblique)가 주된 역할을 한다.