Pelvis

SI joint Hypomobility lesions:- They occur in young people and may b associated with movement that place a rotational on SI joint. F.ex :- Ballet or golfing
It may occur following:

• Pregnancy
• Trauma

It can also be associated with asymmetrical

a) development of pelvis
b) unequal leg length

• Viscous Cycle
• True Short Leg
•            |
• Pelvic drop equal to the drop
•            |
• OA to the hip to opposite side
•            |
• Side bending of lumber spine towards shorter side
•            |
• Causing ospteophyte formation on concave side

Hyper Mobile lesions
a) It can occur in a case of sports injuries to an athlete.
b) During pregnancy and soon after following the secretion of ligament are lax 6- 12 weeks after delivery. (Under the effect of hormone relaxing)
? Degenerative changes:-
like any other joints of the body it also undergoes degeneration.
? Non - inflammatory condition:-
It occurs with the condensation of bone on the iliac side of the joint. Occurs mainly in

• Young adults
• post partum woman

? Inflammatory disease and infection eg. Staphylococcal

• Tubercular infection
• Sexually acquired infection or due to IV drug abuse
• Ankylosing spondylitis