DocGuy
ANATOMY
Medicine Made Simple
, Joints of the lower limb
Hip joint
1) Type – synovial, multi axial, ball and socket
2) Articular surface- acetabulum & head of femur (2/3rd of a sphere)
- Acetabulum- horse shoe/crescent shaped articular surface
- covered by hyaline cartilage
- Deepened by acetabular labrum.
-Transverse acetabular ligament bridge the acetabular notch.
Gives origin to Ligamentum teres
-Acetabular fossa filled with haversian fat pad
3) Capsule – attachment:
proximal – margin of acetabulum, transverse acetabular ligament
Distal- ant- intertrochanteric line, base of 2 trochanters
Post. - neck of femur – 0.5” proximal to intertrochanteric crest
From the distal attachment fibers are reflected into the capsule as the retinacular fibers
Provide pathway for the blood supply of femur!
4) Synovial membrane- covers only non-articular surface. Lines the capsule.
Joint cavity communicates with a bursa lying deep to the tendon of iliopsoas.
(By synovium bulging out between Iliofemoral ligament and Ischiofemoral
ligament)
5) Ligaments-
* iliofemoral ligament (strongest, anteriorly) – limits extension
Inverted “Y” shape, arise from anterior inferior iliac spine, inserted to each end of
trochanteric line
*pubofemoral ligament (inferiorly)
Arise from iliopubic junction
blend with capsule
*ischiofemoral ligament(posteriorly)(weakest)
Arise from ischium inserted onto the greater trochanter
*round ligament (ligamentum teres)
Attached to the fovea capitis.
1
ANATOMY
Medicine Made Simple
, Joints of the lower limb
Hip joint
1) Type – synovial, multi axial, ball and socket
2) Articular surface- acetabulum & head of femur (2/3rd of a sphere)
- Acetabulum- horse shoe/crescent shaped articular surface
- covered by hyaline cartilage
- Deepened by acetabular labrum.
-Transverse acetabular ligament bridge the acetabular notch.
Gives origin to Ligamentum teres
-Acetabular fossa filled with haversian fat pad
3) Capsule – attachment:
proximal – margin of acetabulum, transverse acetabular ligament
Distal- ant- intertrochanteric line, base of 2 trochanters
Post. - neck of femur – 0.5” proximal to intertrochanteric crest
From the distal attachment fibers are reflected into the capsule as the retinacular fibers
Provide pathway for the blood supply of femur!
4) Synovial membrane- covers only non-articular surface. Lines the capsule.
Joint cavity communicates with a bursa lying deep to the tendon of iliopsoas.
(By synovium bulging out between Iliofemoral ligament and Ischiofemoral
ligament)
5) Ligaments-
* iliofemoral ligament (strongest, anteriorly) – limits extension
Inverted “Y” shape, arise from anterior inferior iliac spine, inserted to each end of
trochanteric line
*pubofemoral ligament (inferiorly)
Arise from iliopubic junction
blend with capsule
*ischiofemoral ligament(posteriorly)(weakest)
Arise from ischium inserted onto the greater trochanter
*round ligament (ligamentum teres)
Attached to the fovea capitis.
1
