Hip joint의 ligaments

1. External capsular Ligaments

1) Iliofemoral ligament

① One of strongest ligaments in body 

② Tightens in extension 

③ Helps maintain erect posture 

④ Facet on anterior aspect of neck 

⑤ Prevents hyperextension 

⑥ Fulcrum reducing hip

2) Pubofemoral ligament

① Superior pubic ramus to Inferior part of intertrochanteric line 

② Relatively weak 

③ Prevents abduction 

④ Bursa between it and iliofemoral

3) Ischiofemoral ligament

① Ischium to posterior part of joint 

② Circular fibres, called zona orbicularis 

③ Centre of gravity in front of head 

④ Synovial under obturator externus

2. Internal capsular Ligaments : Ligament of femoral head, Transverse ligament of acetabulum