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. 2021 Apr 24;5(4):673-678.
doi: 10.1016/j.jseint.2021.03.008. eCollection 2021 Jul.

Is suture cerclage fixation a valid treatment for intraoperative nondisplaced calcar fractures in reverse total shoulder arthroplasties?

Philipp Kriechling  1 , Anita Hasler  1 , Caroline Passaplan  1 , Karl Wieser  1
Affiliations

Is suture cerclage fixation a valid treatment for intraoperative nondisplaced calcar fractures in reverse total shoulder arthroplasties?

Philipp Kriechling et al. JSES Int. .

Abstract

Background: Implantation rates of reverse total shoulder arthroplasties continue to grow worldwide. Despite satisfying results, a distinct number of complications persist. Intraoperative fractures of the humeral shaft might occur in a certain number of cases. The literature is sparse regarding incidence and treatment options. This study analyzed the treatment using suture cerclage or stainless-steel-cable cerclage.

Methods: Our prospectively followed-up cohort of 860 patients who received primary reverse total shoulder arthroplasty in a tertiary referral hospital between September 2005 and August 2018 was screened for intraoperative medial humeral calcar fractures. The patients were retrospectively analyzed as per the treatment algorithm using (1) suture cerclage with FiberWire, (2) cable cerclage with stainless steel cable, or (3) no intervention. The outcome was radiologically and clinically (Subjective Shoulder Value and Constant score) evaluated.

Results: A total of 39 (4.5%) intraoperative calcar fractures of the humeral shaft were identified with 29 cases available for analysis at a mean follow-up time of 52 ± 27 months. Sixteen of them were treated with suture cerclage, 7 with metal cable cerclage, and 6 without intervention. All fractures were nondisplaced or could be reduced anatomically and healed without any stem subsidence or loosening within the first 4.5 months. The intervention groups reached similar values for the Subjective Shoulder Value (68%±27% vs. 79%±19%, suture vs. cable) and relative Constant score (65 % ± 25 % vs. 75 % ± 23).

Conclusion: Intraoperative medial calcar fractures can be sufficiently treated with metal or suture cerclage fixation. High-strength polyblend-polyethylene sutures seem to be a valid therapeutic option for selected medial calcar fractures of the humerus. In selected cases, however, benign neglect can result in excellent results as well.

Keywords: Complication; FiberWire; Intraoperative humeral shaft fracture; Reverse total shoulder arthroplasty; Suture cerclage fixation.

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Figures

Figure 1
Figure 1
Suture cerclage fixation using FiberWire 5.0.
Figure 2
Figure 2
Flowchart presenting the included patients. Cable, stainless-steel-cable cerclage fixation; FUP, follow-up; Nothing, no cerclage fixation; RTSA, reverse total shoulder arthroplasty; Suture, suture cerclage using FiberWire.
See this image and copyright information in PMC

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