9hip_and_ankle_joints - Hip joint By Dr Amjad Shatarat-1Type Synovial multiaxial ball-and-socket joint 2-Articular surfaces a head of femur b lunate

9hip_and_ankle_joints - Hip joint By Dr Amjad...

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Hip joint 2/17/2017 By Dr. Amjad Shatarat
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Synovial multi- axial ball-and-socket joint . 1 - Type : 2/17/2017
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a. head of femur b. lunate surface of acetabulum 2-Articular surfaces: 3 - Nerve Supply: Femoral nerve Obturator nerve Sciatic nerve Which is deepened by the fibrocartilaginous labrum acetabulare 2/17/2017
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4 - The capsule of the hip is attached proximally to the margins of the acetabulum Distally, it is attached along the trochanteric line, the bases of the greater and lesser trochanters 2/17/2017
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posteriorly , to the femoral neck about 0.5 in ( 12 mm) from the trochanteric crest . From this distal attachment, capsular fibres are reflected on to the femoral neck as retinacula and provide one pathway for the blood supply to the femoral head Part of the neck posteriorly is extra -capsular ? 2/17/2017
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5 - The synovial membrane of the hip joint important 2/17/2017 lines the fibrous layer as well as any intracapsular bony surfaces not lined with articular cartilage Thus, where the fibrous layer attaches to the femur, the synovial membrane reflects proximally along the femoral neck to the edge of the femoral head. The synovial folds (retinacula), which reflect superiorly along the femoral neck as longitudinal bands, contain subsynovial ret inacular arteries (branches of the medial and a few from the lateral femoral circumflex artery), which supply the head and neck of the femur
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Posterior view Anterior view 2/17/2017 6-Subsynovial retinacular arteries (branches of the medial and a few from the lateral femoral circumflex artery), which supply the head and neck of the femur
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Blood supply of the head of the femur -Acetabular (foveolar) br. of post division of obturator a. (patent in approx. 30% ) 2/17/2017
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1-Medial and lateral circumflex femoral arteries The main blood supply is from the retinacular arteries arising as branches from the circumflex femoral arteries (especially the medial circumflex femoral artery). 2-Artery to the head of femur, a branch of the obturator artery that traverses the ligament of the head. Blood supply of the head of the femur 2/17/2017
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2/17/2017
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2/17/2017 Obturator artery Femoral artery
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The neck may break 1-immediately beneath the head subcapital 2-near its midpoint cervical 3-adjacent to the trochanters basal 4-the fracture line may pass between, along or just below the trochanters pretrochanteic The upper end of the femur is a common site for fracture in the elderly 2/17/2017
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Neck fracture will result in
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  • Fall '16
  • Internal iliac artery, Synovial joint, femoral neck

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