In vivo characterization of glenoid with use of computed tomography

Improvement in the treatment of the shoulder could be achieved by accurately describing the pathologic characteristics of the joint. The goal of this study was to characterize, in vivo, glenoids with 3 different diagnoses by using computed tomography (CT): rotator cuff pathology with a limited ruptu...

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Bibliographic Details
Published in:Journal of shoulder and elbow surgery 2001-03, Vol.10 (2), p.116-122
Main Authors: Couteau, Béatrice, Mansat, Pierre, Mansat, Michel, Darmana, Robert, Egan, John
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Arthritis, Rheumatoid - diagnostic imaging
Arthritis, Rheumatoid - pathology
Biomechanical Phenomena
Diagnosis, Differential
Female
Humans
Male
Middle Aged
Osteoarthritis - diagnostic imaging
Osteoarthritis - pathology
Range of Motion, Articular
Reference Values
Rotator Cuff - diagnostic imaging
Rotator Cuff Injuries
Shoulder Joint - diagnostic imaging
Shoulder Joint - injuries
Shoulder Joint - surgery
Tomography, X-Ray Computed
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Summary:Improvement in the treatment of the shoulder could be achieved by accurately describing the pathologic characteristics of the joint. The goal of this study was to characterize, in vivo, glenoids with 3 different diagnoses by using computed tomography (CT): rotator cuff pathology with a limited rupture and without bony changes (group A, n = 15), primary osteoarthritis (group B, n = 13), and rheumatoid arthritis (group C, n = 4). The bone density distribution was assessed by means of the CT value expressed in Hounsfield units. The version angle was also measured. The examination of the CT value showed different distributions according to the pathology. In group A, the cancellous bone presented a central area with a relatively homogeneous and low density. In group B, the reinforcement of the density along with the posterior region seemed to be correlated with the retroversion angle. In the rheumatoid arthritis group, the main characteristic was the loss of the subchondral bone margin. The cartography of the CT value was not reproducible among the 4 cases examined. These in vivo descriptions provide guidelines for the surgeon before total shoulder arthroplasty, helping preoperative planning as well as simulation of implantation. (J Shoulder Elbow Surg 2001;10:116-22.)
ISSN:1058-2746
1532-6500
DOI:10.1067/mse.2001.112884