TY - JOUR
T1 - Association of glenoid morphology and anterosuperior labral variation
AU - Shortt, Conor P.
AU - Morrison, William B.
AU - Shah, Suken H.
AU - Zoga, Adam C.
AU - Carrino, John A.
PY - 2009
Y1 - 2009
N2 - Objective:: The objective of this study was to determine whether glenoid morphology correlates with anterosuperior labral variation. Methods:: Eighty-eight direct shoulder magnetic resonance arthrograms were retrospectively reviewed. Sagittal oblique images were assessed for the presence or absence of anterosuperior glenoid concavity. Evaluation of axial images was performed, separately classifying the anterosuperior labrum into 1 of 4 categories: no variation, diminutive labrum, sublabral foramen, or Buford complex. Results:: In 88 shoulders, there were 13 notched glenoids (15%). In this group, 3 (23%) had a Buford complex, 2 (15%) had a sublabral foramen, and 4 (31%) had a diminutive labrum. There were 75 ovoid glenoids (85%). In this group, 3 (4%) had a Buford complex, 8 (11%) had a sublabral foramen, and 7 (9%) had a diminutive labrum. There was a significant association (P = 0.001) between notched glenoid morphology and developmental variation of the anterosuperior labrum. Conclusions:: The presence of anterior glenoid concavity is significantly associated with overlying labral variation, which may be of use in discriminating labral pathology from developmental variation.
AB - Objective:: The objective of this study was to determine whether glenoid morphology correlates with anterosuperior labral variation. Methods:: Eighty-eight direct shoulder magnetic resonance arthrograms were retrospectively reviewed. Sagittal oblique images were assessed for the presence or absence of anterosuperior glenoid concavity. Evaluation of axial images was performed, separately classifying the anterosuperior labrum into 1 of 4 categories: no variation, diminutive labrum, sublabral foramen, or Buford complex. Results:: In 88 shoulders, there were 13 notched glenoids (15%). In this group, 3 (23%) had a Buford complex, 2 (15%) had a sublabral foramen, and 4 (31%) had a diminutive labrum. There were 75 ovoid glenoids (85%). In this group, 3 (4%) had a Buford complex, 8 (11%) had a sublabral foramen, and 7 (9%) had a diminutive labrum. There was a significant association (P = 0.001) between notched glenoid morphology and developmental variation of the anterosuperior labrum. Conclusions:: The presence of anterior glenoid concavity is significantly associated with overlying labral variation, which may be of use in discriminating labral pathology from developmental variation.
KW - Glenoid
KW - Labrum
KW - MR arthrography
KW - Shoulder
UR - http://www.scopus.com/inward/record.url?scp=68949088312&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=68949088312&partnerID=8YFLogxK
U2 - 10.1097/RCT.0b013e31818da69d
DO - 10.1097/RCT.0b013e31818da69d
M3 - Article
C2 - 19638855
AN - SCOPUS:68949088312
SN - 0363-8715
VL - 33
SP - 584
EP - 586
JO - Journal of computer assisted tomography
JF - Journal of computer assisted tomography
IS - 4
ER -