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. 2019 Mar 24;16(4):342-346.
doi: 10.1016/j.jor.2019.03.007. eCollection 2019 Jul-Aug.

Long - Term survivorship and clinical and radiological follow - up of the primary uncemented Delta III reverse shoulder prosthesis

Johannes H M van Ochten  1 , Marco van der Pluijm  2 , Martin Pouw  2 , Quinten T M Felsch  3 , Petra Heesterbeek  4 , Maarten J de Vos  5
Affiliations

Long - Term survivorship and clinical and radiological follow - up of the primary uncemented Delta III reverse shoulder prosthesis

Johannes H M van Ochten et al. J Orthop. .

Abstract

Background: Purpose of this study was to evaluate the long - term survivorship and clinical and radiological results of a primary reverse total shoulder arthroplasty (RTSA) performed with uncemented stems.

Methods: From 2001 until 2006 61 primary uncemented RTSAs were implanted, which were included in a Kaplan-Meier survival analysis. Range of motion, functional scores and radiological follow - up was obtained. 27 patients were available for follow - up. Mean follow-up was 9.2 years (SD 2.4).

Results: Mean cumulative survival was 82.4% (95% CI: 50.7-94.6%) of the total construct and 98.3% (CI: 88.8-98.8%) of the uncemented humeral stem after 12.5 years. Five revisions occurred (8.2%). Mean anteflexion improved from 69.3 to 111.9° (p < 0.0001), lateral elevation from 65.9 to 101.3° (p < 0.0001), Constant-Murley score from 39.1 to 66.9 (p < 0.0001), Simple Shoulder Test from 1.5 to 7.1 (p < 0.0001), and VAS-pain from 65.5 to 6.6 at final follow-up (p = 0.0003). Scapular notching was present in 94.1% of the patients.

Conclusions: The present study shows that the long-term clinical results of the primary Delta III RTSA seem very encouraging and survivorship of, in particular, its uncemented humeral stem is good.

Keywords: Clinical and radiological follow – up; Delta III; Long-term survival; Osteoarthritis; Reversed total shoulder arthroplasty; Rotator cuff tear arthropathy; Uncemented.

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Figures

Fig. 1
Fig. 1
Flow chart of patient enrolment (number of RTSA).
Fig. 2
Fig. 2
a: Cumulative survival of the uncemented RTSA (any component) with revision surgery defined as failure event. The small vertical spikes represent the censored data. b: Cumulative survival of the uncemented RTSA (stems only) with revision surgery defined as failure event. The small vertical spikes represent the censored data.
Fig. 2
Fig. 2
a: Cumulative survival of the uncemented RTSA (any component) with revision surgery defined as failure event. The small vertical spikes represent the censored data. b: Cumulative survival of the uncemented RTSA (stems only) with revision surgery defined as failure event. The small vertical spikes represent the censored data.
See this image and copyright information in PMC

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