"Hip 2" lecture
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is the angle between the neck and the shaft of the femur in the frontal plane is called? | angle of inclination
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| When is the angle of inclination the largest? | at birth
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| The angle of inclination __________ until adulthood. | decreases
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| What is considered normal for the angle of inclination? | 125°(may range from 115°-140°)
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| If the angle of inclination smaller or larger in women? | smaller
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| The angle between the neck and shaft of femur in horizontal plane is called? | the angle of anteversion(torsion)
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| What is the average angle of anteversion? | 10°
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| How could anteversion manifest in observation or gait ? | pigeon toes
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| How could retroversion manifest in observation or gait ? | toe out
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| The hip joint is designed for ______, while the glenohumoral joint is designed for ______ . | stability, mobility
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| The acetabular labrum is made up of what kind of cartilage? | fibrocartilage
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| The acetabular labrum is attached to what two structures? | acetabular rim and transverse ligament
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| What is the function of the labrum? | to make the acetabulum more concave to increase stability.
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| Give two examples of fibrocartilage in the body?(besides the labrum) | meniscus of knee, IV discs of spine
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| The ligaments of the hip are considered either _________ or _________. | intracapsular or capsular
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| Which ligaments are considered intracapsular? | transverse ligament and ligament of the head of the femur (ligamentum teres)
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| What ligament completes the gap of the acetabular notch? | transverse ligament
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| Ligamentum teres attaches where? | acetabular notch/transverse ligament to the
fovea of the femur.
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| Does the ligamentum teres provide much joint stability? | no
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| What is the main purpose of the ligamentum teres? | to provide blood supply to femoral head until growth plate closure.(16-20 y/o)
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| What are the potential consequences of ligament disruption | avascular necrosis
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| Where is the joint capsule the thickest/strongest? | anteriorly and superiorly
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| What kind of membrane lines the capsule? | synovial membrane
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| What are the capsular ligaments? | Iliofemoral, Ischiofemoral, and Pubofemoral
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| The Iliofemoral, Ischiofemoral, and Pubofemoral ligaments all tighten up with what motion? | extension
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| Which ligament is located primarily posterior to joint and wraps around from post. to ant. And tightens up with extension? | Ishiofemoral ligament
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| Which ligament is located anterior and inferior to joint? | pubofemoral
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| Which ligament is located primarily anterior to the joint and is also known as the Y ligament of bigelow? | Iliofemoral
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| All capsular ligaments become taut in what hip motion? | extension
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| The position where, overall, joint surfaces are least congruent, least compression of the joint surfaces, capsule and ligaments are maximally relaxed, space & volume maximal, maximal distraction is possible & greatest movement available is what position? | Resting position
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| What is the clinical significance of the resting position? | allows for joint play assessment, its the position of comfort following injury when swelling is present
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| What is the resting position of the hip(specific positions and degrees)? | 30° Flexion, 30° ABD, 30° ER
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| What is the position where overall, the ligaments are maximally stretched and there is maximal congruency of articular surfaces? | closed packed positoin
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| What is different about the hip's closed packed position? | it has a bony closed packed position and a ligamentous closed packed position
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| What is the bony closed packed position of the hip? | 90° Flexion, Slight abduction, Slight ER
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| What is the ligamentous closed packed position of the hip? | Full extension, Abduction, IR
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| What three motions are primarily limited with a capsular pattern? | IR, flexion, abduction
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| Discuss how swelling differs w/ intracapsular vs capsular ligamentous sprains. | Expect more swelling throughout jt in intracapsular sprain vs a minor/superficial/absent swelling w/ capsular sprains.
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Created by:
txst sum 2009
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