Hip & Pelvis Flashcards
What type of joint is the iliofemoral joint?
Synovial ball and socket
Describe the articulations of the iliofemoral joint?
Head of the femur articulating with the acetabulum.
What is the acetabulum made from?
The junction between the illium, ischium and pubic bones.
Describe the articulations of the S.I joint
Articulation between the auricular surface of the illium and the alae (wings of the sacrum) S1 to S3
What type of joint is the S.I joint anterior and posterior
Anterior- synovial plane
Posterior- Fibrous
Describe the articulation between of the lumbosacral junction
Articulation between the inferior facets of L5 and the superior articular pillars of the sacrum
What type of joint is the lumbosacral junction?
Synovial gliding
What type of curvature does the lumber adopt?
Lordotic
Describe the articulation of the PSJ
Articulation between the left and right superior rami of the pubis
What type of joint is the PSJ
Cartilaginous symphysis
What type of bone is the sacrum?
Irregular bone
Describe the articulation between the sacrum and the coccyx
Articulation between the inferior apex of the sacrum and the base of the coccyx
What type of joint is the sacrococcygeal joint?
Fibrocartilagneous joint
Describe the ROM of the hip Flex Ext Abdcution Adduction Int Rot Ext Rot
Flex 110/120 Ext 10-15 Abdcution 30-50 Adduction 30 Int Rot 30-40 Ext Rot 40 to 60
Nutation and counternutation of the sacrum occurs around the axis of?
S2
Which ligament helps to stabilise the lumbosacral junction?
iliolumbar ligament
The direction of the ligaments of the SI joint give an indication of?
Weight transferance
Which ligament prevents abduction of the SI joint?
Interosseous ligament
Where does the interosseous ligament attach to/from?
Sacral tuberosities to the illium
fused transverse procees of the sacrum
Which 3 ligaments enclose and help to stabilise the head of the femur within the acetabulum?
illiofemoral
Pubofemoral
ischiofemoral ligament
The femoral head contains a small pit called?
Fovea capitis
The fovea capitis acts as an attachment site for which ligament?
Ligamentum teres
Avascular necrosis to the head of the femur results in a condition called?
Perthes disease
The illiofemoral ligament extends from/to?
The AIIS to the intertrochanteric crest of the femur
Which ligaments of the hip restrict hip extension?
illiofemoral and ischiofemoral ligament
Which ligament resists abduction of the hip joint?
Pubofemoral ligament
Which ligament resists adduction of the hip joint? (2)
Internal rotation and hip adduction
What is the most challanging (incongruent) position of the SI joint?
Lunge
What degree of movement is capable at the sacrum?
Between 2 and 4 mm
At what age does the sacrum fuse?
30
Why would osteoarthritic changes of the SI joint inhibit movement?
Do to the formation of osteophytes (bone spurs)
What is the lumbarization of the sacrum?
1st sacral vertebrae is not fused. It adopts the role of a sixth lumber vertebrae.
What is sacralization of the lumber vertebrae?
The 5th lumber vertebrae fuses with the sacrum.
What is the function of the transverse ligament of the acetabulum?
Which ligament does it blend with?
What is its function
Acts as an extension of the acetabulum labrum.
Ligamentum teres
Produces a foramen (passageway) for arteries, nerves and veins
Most fractures of the femur involve which portion of the bone
Head
Neck
Shaft
Condylar parts
Neck
The function of the acetabular labrum is…
Improve the depth of the socket
Shock absorption
Increase range of movement
Improve the ‘fit’ of the joint
Improve the depth of the socket
The greater and lesser trochanter of the femur are joined anteriorly by the?
Intertrocanteric line
Adductor tubercle
Pectineal line
Intertrochanteric crest
Intertrocanteric line
What is the level of the lumberplexus?
T12, L1 to L4
What is the level of the sacral plexus?
L4 to S4
What is the differance between idiopathic and functional scoliosis?
Functional scoliosis is congential
The scoliosis remains via flexion
What causes functional scoliosis?
Muscular imbalances Antalgic posture (deviation)
Where would you find the pars articularis?
Between the superior and inferior articular facets of the vertebrae?
What is an anterior displacment a vertebrae called?
Spondylolisthesis
What is a posterior displacment a vertebrae called?
retrolisthesis
What factors contribute towards Spondylolisthesis ?
Full thickness tear to the illiolumber ligament
Weakness of musculature of the abdomen
Excess adipose tissue causing a pull
Postural adaptations
What type of collagen are ligaments made from?
Type 1 collagen fibers
Which 4 muscles does the sacrotuberous ligament blend with?
Biceps femoris
Piriformis
Multifidus
Gluteus maximus
What is trabecula?
Present in cancelleous bone
Matrix structure within bone
Enables bone to bend and flex
What nerve is affected by myalgia parasethetica?
Level?
Lateral femoral cutaneous nerve
L2/3
Which nerve is affected by piriformis syndrome?
Sciatic nerve
What is the nerve root level of the sciatic nerve?
L4 to S3
What is the nerve root level of the sciatic nerve?
S2 to S4
What is the motor and sensory function of the pudendal nerve?
Motor
Controls anal and urethral external sphincter
Sensory
External genitalia and the perineum
If the sensory component of the pudendal nerve is damaged which condition does it lead to?
Saddle anesthesia
Name 4 bursa of the hip joint.
Trochanteric bursa
illiopsoas bursa (illiopectineal bursa)
Ischiogluteal bursa
Gluteus medius bursa
Which nerve innervates the quads? Level
Femoral nerve L2 to L4
Which muscles are innervated by the anterior division of the femoral nerve?
Sartorius
illiacus
Pectineus
Which muscle is innervated by the inferior gluteal nerve?
Glute Max
What is the nerve root level of the Inferior gluteal nerve?
L5 to S2
Which muscles are innervated by the superior gluteal nerve?
Glute med, min and tfl
What is the nerve root level of the superior gluteal nerve?
L4 to S1
Which muscles does the common fibular nerve inneravate?
Short head of the biceps femoris
Which muscle does the superficial fibular nerve inneravate?
Lateral compartment of the leg
Which muscles does the deep fibular nerve innervate?
Anterior compartment of the leg
Which nerve innervates the posterior compartment of the leg?
Tibial nerve
Which nerve supply’s cutaneous supply to the posterior compartment of the thigh? Level?
Posterior femoral cutaneous nerve
S1/2
Which nerve innervates the obturator externus?
Obturator nerve
Which nerve innervates the obturator internus? w/level.
Nerve to the obturator internus
L5 to S2