Hypothesis:  Joint Laxity

Joint laxity is suspected in this patient for many reasons.  With coxofemoral joint laxity 
the femoral head is held loosely in the acetabulum.  This laxity can allow for subluxation 
of the femur.  Jocqelyn demonstrated a postive Ortlani sign which is indicative of joint 
laxity.  She also experienced the most pain on forced extension which is typical of 
coxofemoral laxity.  Jocqelyn had a decreased range of motion, another classic sign of joint 
laxity.  Jocqelyn, being a 9 month  old rapidly growing Rotteweiler fed free choice meals, 
makes her a prime candidate for the development of coxofemoral joint laxity.   The laxity 
of the femoral head in the acetabulum would explain the pain after exercising because the 
laxity causes incongruity in the joint which can lead to cartilage damage, bone remodeling, 
and pain. 

Plan  of Action

Do radiographs of the pelvis and coxofemoral joint, V/D and Lats.