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LCRS 2 > Hip, buttock and thigh > Flashcards

Hip, buttock and thigh Flashcards

1
Q

What happens to the lower limb during development?

A

It twists during develop and you get a permanent pronation at the mid-thigh level

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2
Q

What specific words are given to the flexion and extension of the foot?

A

Dorsiflexion (pointing toes up)

Plantarflexion (pointing toes down)

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3
Q

What are the three parts of the pelvis (hip bone)?

A

Ilium
Ischium
Pubis

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4
Q

What marks the ends of the iliac crest?

A

ASIS and PSIS

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5
Q

What is the name given to the surface of the hipbone that articulates with the sacrum?

A

Auricular Surface

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6
Q

What lies in between the greater and lesser trochanters?

A

Intertrochanteric crest

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7
Q

What short ridge is found just inferior to the lesser trochanter?

A

Gluteal tuberosity

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8
Q

A longer ridge downwards along the shaft of the humerus and originates from the short ridge below the lesser trochanter. What is this long ridge called?

A

Linea aspera

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9
Q

Which tubercle is found just superior to the medial epicondyle?

A

Adductor tubercle

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10
Q

What is the anterior protrusion between the ilium and the pubis called?

A

Iliopubic eminence

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11
Q

What are the two notable parts of the ischium onto which ligaments attach?

A

Tuberosity and spine

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12
Q

Which pelvic bones make up the acetabulum?

A

All three of them (ilium, ischium and pubis)

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13
Q

What notches are present on the posterior aspect of the pelvis?

A

Greater sciatic notch and lesser sciatic notch

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14
Q

What is the angle of inclination?

A

The angle that the long axis of the shaft makes with the long axis of the head and neck

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15
Q

What determines the size of the angle between the long axis of the shaft and the vertical plane?

A

The width of the hips

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16
Q

What structures form the greater and lesser sciatic foramina?

A

Sacrospinous ligament

Sacrotuberous ligament

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17
Q

What are the two fascia found in the thigh?

A

Superficial fascia – e.g. subcutaneous tissue

Deep fascia – fascia lata

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18
Q

What is the name given to the lateral thickened area of the fascia lata?

A

Ilio-tibial tract

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19
Q

What are the four compartments of this region?

A

Gluteal compartment
Anterior compartment of the thigh
Medial compartment of the thigh
Posterior compartment of the thigh

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20
Q

What movements are the muscles of the gluteal region responsible for?

A

Extension, abduction and external rotation of the femur

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21
Q

What are the gluteal muscles?

A

Gluteus maximus
Gluteus medius
Gluteus minimus
(tensor fasciae latae – this is neurologically a gluteal muscle (innervated by superior gluteal nerve) but functionally it is more of an anterior compartment muscle)

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22
Q

What are the short external rotators of the hip?

A

Piriformis
Obturator internus
Quadratus femoris
Gemelli (superior and inferior)

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23
Q

Describe the attachments of gluteus maximus.

A

Proximal – posterior part of the iliac crest and thick fascia of the sacrum and coccyx
Distal – gluteal tuberosity and ilio-tibial tract

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24
Q

What proportion of the gluteus maximum fibres attach to the gluteal tuberosity?

A

About 25% attach to the gluteal tuberosity and the rest are attached to the ilio-tibial tract

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25
Q

What does the ilio-tibial tract insert into?

A

Anterolateral tubercle of the tibia
NOTE: there is a lateral intermuscular septum that goes between the iliotibial tract and the posterior surface of the femur

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26
Q

Describe the attachments of gluteus medius.

A

Proximal – broad attachment to the external surface of the ilium (between the anterior and posterior gluteal lines)
Distal – greater trochanter

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27
Q

Describe the attachments of gluteus minimus.

A

Proximal – broad attachment to the external surface of the ilium (between the anterior and inferior gluteal lines)
Distal – just below the greater trochanter

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28
Q

What movement are gluteus medius and gluteus minimus responsible for?

A

Abduction

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29
Q

What movement are the deep muscles of the gluteal region responsible for?

A

External rotation

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30
Q

Describe the attachments of tensor fasciae latae.

A

Proximal – ASIS

Distal – ilio-tibial tract

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31
Q

Which compartment is tensor fasciae latae in?

A

Neurologically it is more like a gluteal compartment muscle because it is innervated by the superior gluteal nerve
In terms of action, it is a flexor of the hip so it functions more like an anterior compartment muscle

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32
Q

Describe the attachments of obturator internus.

A

Rim of the obturator foramen

Greater trochanter of the femur

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33
Q

What movement are the muscles of the anterior compartment of the thigh responsible for?

A

Hip flexion

Knee extension

34
Q

Which muscles are in the anterior compartment of the thigh?

A 
Tensor fasciae latae
Pectineus
Ilio-psoas
Sartorius
Quadriceps (rectus femoris, vastus medialis, vastus intermedius, vastus lateralis)
35
Q

What is the most powerful flexor of the hip?

A

Ilio-psoas

36
Q

Describe the attachments of Ilio-psoas.

A

Psoas major attaches to the lateral parts of the lumbar vertebrae and T12 and Iliacus attaches to the iliac fossa and crest
The two muscles then come together to form a common tendon that attaches to the lesser trochanter

37
Q

Describe the attachments of Sartorius. What movement is it responsible for?

A

Sartorius comes off ASIS and descends inferiorly and medially. It crosses the knee and attaches to the upper part of the shaft of the tibia. Knee flexion and thigh abduction

38
Q

Describe the arrangement of the quadriceps muscles.

A

Rectus femoris is most superficial with vastus medialis and vastus lateralis on either side of rectus femoris
Vastus intermedius is deep to rectus femoris

39
Q

Where do the quadriceps attach distally?

A

They come together to form a quadriceps tendon, which attaches to the patella
There is a patellar tendon between the patella and the tibial tuberosity on the anterior of the tibia
The patellar tendon is part of the quadriceps tendon with the patella in between as a sesamoid bone

40
Q

What small muscle is found underneath vastus intermedius?

A

Articularis genu

41
Q

What bursa is found just above the knee joint?

A

Suprapatellar bursa

42
Q

What movement are the muscles in the medial compartment of the thigh responsible for?

A

Adduction of the hip

43
Q

Which muscles make up the medial compartment of the thigh?

A 
Obturator externus 
Gracilis 
Adductor brevis 
Adductor longus 
Adductor magnus
44
Q

Where do most of the muscles of the medial compartment attach proximally?

A

Pubic bone

45
Q

Describe the structure of adductor magnus.

A

It has a broad attachment to the shaft of the femur (medial lip of the linea aspera) and then a smaller attachment to the adductor tubercle (just superior to the medial epicondyle)
The gap in between is called the hiatus of adductor magnus

46
Q

What movements are the muscles of the posterior compartment of the thigh responsible for?

A

Hip extension

Knee flexion

47
Q

Which muscles make up the posterior compartment of the thigh?

A

Semitendinosus
Semimembranosus
Biceps femoris

48
Q

Where do the muscles of the posterior compartment attach proximally?

A

Ischial tuberosity

49
Q

Describe the attachments of biceps femoris.

A

The long head of biceps femoris comes from the ischial tuberosity and the short head comes off the shaft of the femur (lateral lip of linea aspera)
They cross over laterally to attach to the head of the fibula

50
Q

What are the borders of the femoral triangle?

A

Superior – Inguinal Ligament
Lateral – Sartorius
Medial – Adductor Longus

51
Q

What are the contents of the femoral triangle (medial to lateral)?

A

Deep inguinal lymph nodes
Femoral Vein
Femoral Artery
Femoral Nerve

52
Q

What is the name given to the opening in the fascia lata over the femoral triangle and what is its purpose?

A

Saphenous Opening – it allows the draining of the long saphenous vein into the femoral vein
The margin of the saphenous opening is called the Falciform Margin

53
Q

What structures form the Adductor Canal?

A

Anterior – Vastus Medialis
Posterior – Adductor Longus and Adductor Magnus
Medial – Sartorius

54
Q

What are some other names for the Adductor Canal?

A

Hunter’s Canal

Subsartorial Canal

55
Q

What are the contents of the Adductor canal?

A

Femoral artery
Femoral vein
Saphenous nerve (major branch of the femoral nerve)

56
Q

Where does the sciatic nerve lie within the gluteal region?

A

Inferior medial quadrant (NOTE: there are variations in terms of the emergence of the sciatic nerve relative to piriformis)

57
Q

What two nerves does the sciatic nerve consist of?

A

Tibial Nerve

Common Peroneal Nerve

58
Q

Where would you perform an intramuscular injection into the gluteal region?

A

Superior lateral quadrant

59
Q

What does the sciatic nerve supply?

A

Muscles of the posterior compartment of the thigh (hamstrings)
All the muscles below the knee (supplies by the two branches of the sciatic)

60
Q

What test is used to assess the function of the hip abductors?

A

Trendelenberg test
When a patient lifts one foot off the floor, their hip abductors (gluteus medius and gluteus minimus) should contract to keep the pelvis level despite the extra weight of the raised foot on the opposite side

61
Q

Describe the structure of the acetabulum.

A

The acetabulum has a depression in the middle (acetabular fossa) and a lunate surface (surrounding the fossa)
There is an acetabular notch, which is filled in by the transverse acetabular ligament

62
Q

What is the small depression on the head of the femur called?

A

Fovea capitis

63
Q

What are the ligaments of the hip joint?

A

Iliofemoral ligament (Y shaped)
Ischiofemoral ligament
Pubofemoral ligament
Transverse acetabular ligament

64
Q

Describe how the arrangement of these ligaments changes when the hip is flexed and extended.

A

When the hip is flexed, these ligaments are relaxed
When the hip is extended (e.g. when standing) the ligaments wind, which pulls the head of the femur into the acetabulum and helps stabilise the joint when in the standing position

65
Q

Describe the blood supply to the head of the femur.

A

The main blood supply is via the medial circumflex femoral artery and the lateral circumflex femoral artery (both from profunda femoris)
There is a small blood supply from the artery of the head of the femur (branch of obturator artery - this is more important in children)

66
Q

What type of hip fracture is most likely to need a hip replacement and why?

A

Intracapsular – this is more likely to disrupt the blood supply and cause avascular necrosis of the head of the femur

67
Q

When does the external iliac artery become the femoral artery?

A

As it passes under the inguinal ligament

68
Q

What main branch does the femoral artery give off that gives rise to the medial and lateral circumflex femoral arteries?

A

Profunda femoris

69
Q

At what point do the superficial femoral artery and the femoral vein become the popliteal artery and vein?

A

As they pass through the hiatus of adductor magnus

70
Q

Which arteries, that supply the buttock and thigh, are branches of the internal iliac?

A

Superior gluteal and Inferior gluteal arteries

Obturator artery

71
Q

What is the main superficial vein of the thigh?

A

Long saphenous vein

72
Q

What other veins drain into the saphenous vein before it enters the sapheno-femoral junction?

A

Superficial circumflex iliac
Superficial epigastric
Superficial external pudendal
Lateral cutaneous nerve of the thigh

73
Q

What are the deep veins of the thigh?

A 
Popliteal vein 
Femoral vein 
External iliac vein 
Sapheno-femoral junction 
Venae comitantes of the profunda femoris artery
74
Q

What are the main groups of lymph nodes in the thigh?

A

Deep inguinal lymph nodes
Superficial inguinal lymph nodes
External iliac lymph nodes

75
Q

Which nerve supplies the anterior compartment and which division of the lumbosacral plexus gives rise to this?

A

Femoral nerve – posterior division of the lumbosacral plexus (L234)

76
Q

Which nerve supplies the medial compartment and which division of the lumbosacral plexus gives rise to this?

A

Obturator nerve – anterior division of lumbosacral plexus (L234)

77
Q 
State which roots are responsible for:
Hip flexion
Hip extension
Knee extension
Knee flexion
A

Hip flexion: L23
Hip extension: L45
Knee extension: L34
Knee flexion: L5S1

78
Q

Which nerve supplies the posterior compartment of the thigh and which nerve roots give rise to this nerve?

A

Sciatic nerve (L45S123)

79
Q

Which nerves supply the gluteal muscles and which nerve roots give rise to these nerves?

A

Superior gluteal nerve (L45S1)

Inferior gluteal nerve (L5S12)

80
Q

Which nerve roots are responsible for the sensory supply to the:
Front of the thigh
Back of the thigh
Buttock

A

Front of the thigh: T12, L123
Back of the thigh: S123
Buttock: S234

81
Q

Which nerve roots give rise to the following sensory peripheral nerves:

A

Subcostal nerve: T12
Ilio-hypogastric nerve: L1
Ilio-inguinal nerve: L1
Genito-femoral nerve: L12
Lateral cutaneous nerve of the thigh: L23
Sensory branches of the femoral nerve: L234
Sensory branches of the obturator nerve: L234
Posterior cutaneous nerve of the thigh: S123
Saphenous nerve: L234
Buttock nerves from the sacral plexus: L1-S3

82
Q

2 main regions of lower limbs

A

Gluteal part of the trunk

Free lower limb consisting of thigh leg and foot

LCRS 2 (44 decks)

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