Pelvis + hip Flashcards
What bones is the iliac bone made up of you
Ischium
Ilium
Pubis
Hamstring attachment
Ischial tuberosity
Female: Pubic arch Acetabular cavity Shape of pelvic cavity Shape of ilium
Large- 80-90
Shallow
Circular
Flared
Male:
Pubic arch
Acetabular cavity
Shape of pelvic cavity
Shorter- 50-60
Thick
Heart shaped
What is the acetabular cavity
Socket to hip
Sacrum
5 fused vertebrae
Sacral alar- top third of sacrum
Sacral crest- lower section
Coccyx
1 single + 3 fused vertebrae
Trabeculae
Helps weight bearing, follows lines of force
Periosteum
Skin on bone
Attachment for tendons
Angle of inclination
Angle of neck of femur in relation to shaft of femur
Normal angle of inclination
130
Coxa vara
<130
Coxa valium
> 130
Hip angle of ante version/torsion
Angle of head and neck of femur in relation to condyles of the femur
Version- normal difference in angulation of femur
15 degrees
Sacro iliac joint
Synovial plane/fibrous- 1/2 each
Articulates surfaces of sacrum and ilium
Lumbar sacral joint
Synovial plane
L5 vertebral body artciulates with S1 vertebral body
Hip joints
Multiaxial (multiple vectors of movement), ball + socket, synovial
Where hip joins leg
Pubis symphysis joint
Fibro-cartilagenous
Between left + right superior rami of pubis of hp bones
Coccyx joint
Fibro-cartilagenous
Between sacrum + coccyx
ROM of hip: flexion
110-120
ROM of hip: extension
10-15
ROM of hip: abduction
30-50
ROM of hip: adduction
30
ROM of hip: internal rotation
30-40
ROM of hip: external rotation
40-60
/muscles of pelvic floor
Urethral hiatus Vaginal canal Ilialus Anal canal Pre-rectal fibres Puborectalis Puboccygeous Ilioccygeus Coccygeus Psoas major
What is the result of weak gluteus minimus + Maximus
Leads to unstable pelvis
Area of vulnerability: femoral triangle
Boundaries
Sartorius
Adductor longus
Inguinal ligaments
Area of vulnerability: femoral triangle
Contents
Femoral nerve
Femoral artery
Femoral vein
Greater saphenous vein
Areas of vulnerability: sciatic notch
Boundaries
Sacrotuberous ligament
PSIS
PIIS
Area of vulnerability: sciatic notch
Content
Superior gluteal nerve Sup gluteal artery Inferior gluteal nerve Innf gluteal artery Sciatic nerve Piriforis muscle Pudendal nerve Internal pudendal artery
Muscles for flexion of hip
110-120 Psoas major Iliacus Assisted by: -pectineus -rectus femurs -sartorius -adductors
Muscles for extension of hip
10-15 Gluteus Maximus Hamstring group Semi-tendinous Semi-membranosis Assisted by: -biceps femurs
Muscles for internal rotation of hip
30-40 Tensor fascia latae Gluteus medius/minimus Assisted by: -gracilis
Muscles for external rotation of hip
40-60 Obturator internus + externes Gemellus superior + inferior Quadrates femoris Assisted by: -piriformis -gluteus Maximus -sartorius
Muscles for abduction of hip
30-50 Gluteus minimus Gluteus medius Assisted by: -tensor fasciae latae -sartorius
Muscles for adduction of hip
30 Adductor longs Adductor brevis Adductor Magnus Assisted by: -pectineus -gracilis
Rotator cuff muscles of hip
Gluteal group Piriformis Gemillis Obturator internus/exturnus Quadrates femorisn
