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Rehabilitation Faculty

Rehabilitation Faculty. Semnan University of Medical Sciences. Hip Joint Kinesiology. Amir H. Bakhtiary PhD, PT Associate Professor. Physiotherapy Department Rehabilitation faculty Semnan University of Medical Sciences. Can you explain the type of Hip Joint, its movement and main role?.

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Rehabilitation Faculty

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  1. Rehabilitation Faculty Semnan University of Medical Sciences

  2. Hip Joint Kinesiology Amir H. Bakhtiary PhD, PT Associate Professor Physiotherapy Department Rehabilitation faculty Semnan University of Medical Sciences

  3. Can you explain the type of Hip Joint, its movement and main role? • A ball and socket joint with 3 degree of freedom • Flexion and Extension (Sagital) • Abduction and Adduction (Frontal) • Medial and Lateral Rotation (transverse) • Main role of Hip Joint • Weight bearing • Static (Standing position) • Dynamic (Ambulating, Running, Stepping)

  4. Can you describe the acetabulum orientation? • Laterally, • Inferiorly, (Center Edge Angle) • 38 degree in Men, 35 degree in women • Increase with age • Decreased angle cause superior instability • Anteriorly, (Anteversion Angle) • 18.5 degree for men, 21.5 degree for women • Increased angle cause Anterior instability

  5. Center Edge Angle Or Wiberg angle

  6. Acetabular labrum • is rimmed by a ring of wedge-shaped fibrocartilage • is attached to the periphery of the acetabulum • is not load-bearing • Serves a role in proprioception and pain sensitivity • help to protect the rim of the acetabulum

  7. How does acetabular labrum may increase stability of hip Joint? • Increase the depth of acetabulum • Increase the concave of acetabulum • Increase the contact area of acetabulum • Cover the head of femour

  8. Can you explain distal articular surface head of femur? • Rounded covered by Hyaline cartilage • Less radius of curvature in women • Oriented • Medially, • Superiorly, (inclination Angle) in Frontal • 125 in adult and 120 in elderly • Less in women because of wide pelvic • Pathologic condition: Coxa Valga and Coxa Vara • Anteriorly, (Torsion Angle) in transverse

  9. Inclination Angle

  10. The axis of the femoral head and neck forms an angle with the axis of the femoral shaft called the angle of inclination.

  11. Coxa Valga and Coxa Vara

  12. Coxa vara and Coxa valga

  13. What is Torsion Angle and its pathological condition? • 40 degree in the born child • Decrease 1.5 degree each year • 10-15 degree in adult • Pathological Conditions • Increased torsion angle (Anteversion Angle) • Decreased torsion angle (Retroversion angle)

  14. Torsion Torsion Angle Angle

  15. Anteversion Angle Abnormal Torsion Angle Retroversion Angle

  16. Abnormal Torsion and Inclination Angle Compensation Changes in Hip Joint Stability Changes Biomechanical Changes in WB Biomechanical Changes in muscles Knee and Ankle Joint malfunction Hip Joint malfunction

  17. سير تكاملي بدن انسان

  18. Explain the articular congruence of the hip joint Frog leg Position (Flexion, Abduction, Lat Rotation) Maximum Contact Area

  19. Explain the Hip Joint Capsule • Strong and full of fiber • Cover head and neck of femur • Have two kind of fibers • Longitudinal (surface) • Spiral (deep) • More Thickness in ant and superior • Tin in post and Inferior part • Provide stability for joint

  20. Explain the Hip Joint ligaments • Ligament Teres • Inside the capsule but out side the synovial • Triangle shape • Stretch in semi-flex and ADD • Nutrition of the femoral head • IliofemoralLig • PubofemoralLig • IschiofemoralLig • In standing position (few Ext) cause tension in these ligaments. In normal condition Capsule and Ligaments can tolerate 70% of body Weight

  21. Ligament Teres

  22. Iliofemoral and Pubofemoral Ligaments

  23. Ischiofemoral Ligament

  24. Which movement was limited by the hip ligaments? • IliofemoralLig • Lat rot, Add (upper band) Abd, (lower Band) and Ext • PubofemoralLig • Lat rot, Abd and Ext • IschiofemoralLig • Med rot, Add, Abd and Ext

  25. Some important positions in Hip Joint • Closed pack • Ext, few Abd and Med Rot • Most contact area • Flex, Abd, Lat Rot Between these positions the joint may be dislocated such as: Flex and Add (dashboard Injury) • Decreased in Tension of Capsule and ligaments in flex and few Abd • This is the optional position for patients complain of • Edema due to increase of sinovium fluid • Inflammation in capsule or lig.

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