Skip to main content
Top
Published in: Skeletal Radiology 9/2023

Open Access 19-04-2023 | Scientific Article

Does radiolucency really predict loose components in revision shoulder arthroplasty?

Authors: Laura E. Streck, Chiara Gaal, Frank Gohlke, Maximilian Rudert, Kilian List

Published in: Skeletal Radiology | Issue 9/2023

Login to get access

Abstract

Objective

The number of shoulder arthroplasties is increasing along with the need for revision surgeries. Determining the stability of the implant is crucial in preoperative planning. This study aims to investigate whether radiolucent lines (RLL) in preoperative radiographs predict component loosening.

Materials and methods

Preoperative radiographs of 93 cases in 88 patients who underwent shoulder arthroplasty revision were evaluated regarding the presence of RLL. Correlation analyses were performed for radiographic findings and demographic factors (age, gender, BMI, prior surgeries) compared to intraoperative findings.

Results

The presence of RLL around the humeral component correlated with loosening (p < 0.001, Phi 0.511), and the distal zones 3 and 5 showed the strongest correlation (Phi 0.536). While RLL in only one zone did not predict loosening (p = 0.337), RLL present in two or more zones showed correlation with loosening (p < 0.001). Risk factors associated with loosening were a higher age at the time of revision surgery (p = 0.030) and the number of zones with RLL (p < 0.001). The glenoid component was loose in 39.0% of the cases; 5.5% of the glenoid components with RLL were stable. Nevertheless, the presence of RLL was highly associated with loosening (p < 0.001, Phi 0.603). A longer time between implantation and revision correlated with loosening of the glenoid component (p = 0.046).

Conclusion

While RLL do not predict loosening of the implant in general, occurrence in more than one zone correlates with loosening. If located in distal zones and with increasing number of zones with RLL, the correlation becomes even stronger and loosening is more likely.
Literature
11.
go back to reference Mauch F, Rickert C, Mauch B, Liem D. Nativradiologische Bildgebung des Schultergelenks. In: Scheibel M, Brunner U, editors. Schulter. Stuttgart, Germany: Georg Thieme Verlag; 2021. p. 86–8. Mauch F, Rickert C, Mauch B, Liem D. Nativradiologische Bildgebung des Schultergelenks. In: Scheibel M, Brunner U, editors. Schulter. Stuttgart, Germany: Georg Thieme Verlag; 2021. p. 86–8.
17.
go back to reference Franklin JL, Barrett WP, Jackins SE, Matsen FA3. Glenoid loosening in total shoulder arthroplasty. Association with rotator cuff deficiency. J Arthroplasty. 1988;3:39–46. Franklin JL, Barrett WP, Jackins SE, Matsen FA3. Glenoid loosening in total shoulder arthroplasty. Association with rotator cuff deficiency. J Arthroplasty. 1988;3:39–46.
Metadata
Title
Does radiolucency really predict loose components in revision shoulder arthroplasty?
Authors
Laura E. Streck
Chiara Gaal
Frank Gohlke
Maximilian Rudert
Kilian List
Publication date
19-04-2023
Publisher
Springer Berlin Heidelberg
Published in
Skeletal Radiology / Issue 9/2023
Print ISSN: 0364-2348
Electronic ISSN: 1432-2161
DOI
https://doi.org/10.1007/s00256-023-04330-7

Other articles of this Issue 9/2023

Skeletal Radiology 9/2023 Go to the issue

Test Yourself: Answer

Knee pain and swelling

Test Yourself: Question

Knee pain and swelling