Faculty Collaboration Database

Failed temporomandibular joint prostheses: MR imaging. Radiology 1987 Oct;165(1):179-81

Date

10/01/1987

Pubmed ID

3628767

DOI

10.1148/radiology.165.1.3628767

Scopus ID

2-s2.0-0023280903 (requires institutional sign-in at Scopus site)   20 Citations

Abstract

Magnetic resonance (MR) imaging with surface coils was performed on 43 temporomandibular joints with disk prostheses in 28 patients who had pain, dysfunction, or both after implantation of the prostheses. Fracture was diagnosed prospectively as a discontinuity of the prosthesis on the MR examination; the sensitivity and specificity of MR imaging for this diagnosis was determined on the basis of these studies. All patients underwent surgery, after which the final diagnosis was made. MR imaging was found to have a sensitivity of 0.81 and a specificity of 0.91. Other MR findings included an abnormal amount of soft tissue surrounding the disk, thinning of the disk, osteophytes, and erosion of the condyle. An as yet unexplained artifact was frequently seen and obscured the prostheses in four of the six false-negative studies. The one false-positive case resulted from the interpretation of a markedly thinned but intact region of the prosthesis as a fracture.

Author List

Kneeland JB, Ryan DE, Carrera GF, Jesmanowicz A, Froncisz W, Hyde JS

MESH terms used to index this publication - Major topics in bold

Female
Fractures, Bone
Humans
Joint Prosthesis
Magnetic Resonance Spectroscopy
Male
Postoperative Complications
Prospective Studies
Prosthesis Failure
Retrospective Studies
Temporomandibular Joint