Question

While working in a sports clinic
you observed that
glenohumeral joint dislocations
are more common than hip joint
dislocations. All of the
following could be the cause of
increased glenohumeral
instability except
a. Posterior tilt of the glenoid
fossa,
b. Inadequate retroversion of
the humeral head,
c. Deficits in the rotator cuff
muscles
O d. Inadequate size of the glenoid
fossa,​

Answer 1

Answer:

( d ) Inadequate size of the glenoid fossa

Answer 2

Answer:

Explanation:

d. Inadequate size of the glenoidfossa,​

cause the glenoid fossa (cavity) is relatively shallow; it accepts a little more than a third of the humeral head. Although the joint is strengthened on its superior, anterior and posterior aspects, it is weak on its inferior aspect. Hence, the head of the humerus usually dislocates inferiorly, but ends up as an anterior (subcoracoid location) i.e. anterior-inferior dislocation.