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Related Flashcards
Cards In This Set
| Front | Back |
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Pelvis
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Provides support and protection to abdominal organs
Transmits forces from the head, UE, and Trunk to Lower Extremity, Plays an important role in permitting Childbirth |
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Joints of the Hip
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7 Jt.s
Lumbosacral,sacroilliac(2), sacrococcygeal,symphysis pubis, Hip(2) |
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Hip Joint(Description)
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Most structurally stable, yet mobile joint in the body
Transmits large forces between trunk and ground Is a major component of locomotor system Participates in elevating and Lowering body Brings Foot towards the Body or Hand |
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Motions of the Hip Joint
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Flexion and Extension
Abduction and Adduction Rotations |
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Motions of the Pelvis
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Anterior and Posterior Tilting
Lateral Tilting Rotations |
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Functional Description of Hip
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Provides stability and Mobility.
Stabilizes Body due to bony configuration of hip socket being much bigger |
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Axes of Femur
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Anatomical Axis: Line through femoral Shaft
Axis of Femoral Neck: Line through Neck Mechanical Axis: Line connecting centers of hip and Knee Jt.s.Usually vertical when erect |
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Angulations of Hip
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2 angles due to developmental changes that affect fit of femoral head in acetabulum and forces and function of joint
2 Angles are : Angle of Inclination and Angle of torsion |
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Angle of Inclination
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In Frontal Plane
Between axis of femoral neck and axis of femoral shaft Caused by Add. and ext of femoral shaft in relation to femoral head |
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Changes in Angle of Inclination
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Early Infancy: 150 degrees
Normal Adult: 125 Degrees Normal Elderly Adult:120 Females have greater angle than males due to Child bearing hips |
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Reason why Angle of Inclination Important
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It determines the effectiveness of hip Abductors , the length of the limb and the forces imposed on the hip joint
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Abnomalities in Angle of Inclination
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Normal: 120-135
Coxa Vara: Decreased angle Coxa Valga: Increased Angle |
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Coxa Vara
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Pelvis appears lower on involved side
has abnormal gait decreased angle |
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Causes of Coxa Vara
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Shortening of Limb
Shortening of Hip Abductors( causes them to be more effective) Lengthening of Hip adductors |
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Coxa Valga
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Abnormal Increase in angle
Pelvis appears higher on involved side radiograph used to diagnose |
