Evidence Based Management of the Shoulder Joint Complex Flashcards
how much AC jt motion makes up 120 deg of GH abd?
35 deg upward rot
how much ST jt motion makes up 120 deg of GH abd?
60 deg upward rot
how much GH jt ER makes up 120 deg of GH abd?
45 deg
how much SC jt motion makes up 120 deg of GH abd?
25 deg upward rot
25 deg elevation
what kind of jt is the SC jt?
a saddle jt
what is the articulation of the SC jt?
the clavicle articulates with a disc on the manubrium
t/f: the clavicle moves in an oblique plane that tilts into the sag plane when going into protraction/retraction
true
what are the benefits of the disc articulation in the SC jt?
increased mobility, stability, and load acceptance in the SC jt
elevation and depression of the clavicle is restricted by what lig?
the costoclavicular lig
protraction at the SC jt is accompanied by what other motion?
depression
retraction at the SC jt is accompanied by what other motion?
elevation
when the SC jt protracts and depresses, what is the direction of the glide?
anterior
when the SC jt retracts and elevates, what is the direction for the glide?
posterior
when the SC jt protracts/retracts, is it convex on concave motion or concave on convex motion?
concave on convex motion
what plane is rotation of the clavicle?
sagittal plane
what ligament stops elevation of the clavicle at about 90 deg, then rotates the clavicle to allow for the scap to continue moving?
the coracoclavicular lig
what is the roll and glide of elevation at the SC jt?
roll sup
glide inf
what is the roll and glide of depression at the SC jt?
roll inf
glide sup
what motions does the interclavicular lig restrict?
sup and lat motions
what motion does the costoclavicular lig restrict?
elevation
what plane does protraction/retraction occur in?
transverse plane
t/f: the AC jt is a pseudoarticulation
true
what kind of jt is that AC jt?
planar jt
what part of the scap defines upward/downward rotation?
the inf angle of the scap