Hip

Question 1

What is the hip anatomy?

Answer 1

composed of three joints:
sacroiliac, symphysis pubis, acetabulofemoral

acetabular joint is a ball and socket joint held together by pubo, ischio and iliofemoral ligaments

axis of motion polyaxial in all directions including circumduction

Question 2

what are the normal hip ROM?

Answer 2

Add 20
Abd 40
Flexion 120
Extension 20
Med/lat rotation 45
-These normal values varies considerable b/w indivudals 
-hamstrings 70 straight leg flexion 
-trendelendburg test for weak abductors. SLS should have unsupported hip at same or higher level if not positive for weak abductor

Question 3

what are the hip restrictions?

Answer 3

-internal or external restriction in a rotated position due to muscle or osseous factors
-tight flexion, posterior muscles tight
-tight extension, anterior muscles tight
-external rotation limited, internal rotators are tight
-internal rotation limited, external rotators tight
if both position show restricted motion osseous involvement indicated

Question 4

common causes of hip pain?

Answer 4

OA, muscle strain, capsular/ligamentus strain, leabral tears, sacroiliac irritation, greater trochanteric bursitis, stress fracture , femeroacetabular impingement, referral from back