Syndesmotic Screw Breakage May Be More Problematic Than Previously Reported: Increased Rates of Hardware Removal Secondary to Pain With Intraosseous Screw Breakage

Author:

Ibrahim Ishaq O.123,Velasco Brian T.123ORCID,Ye Michael Y.123ORCID,Miller Christopher P.123ORCID,Kwon John Y.123

Affiliation:

1. Harvard Combined Orthopaedic Residency Program, Massachusetts General Hospital, Boston, Massachusetts (IOI)

2. Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts (BTV, MYY, CPM, JYK)

3. Harvard Medical School, Boston, Massachusetts (CPM, JYK)

Abstract

Background. The majority of retained syndesmotic screws will either loosen or break once the patient resumes weight-bearing. While evidence is limited, anecdotal experience suggests that intraosseous screw breakage may be problematic for some patients due to painful bony erosion. This study seeks to identify the incidence of intraosseous screw breakage, variables that may predict intraosseous screw breakage, and whether intraosseous screw breakage is associated with higher rates of implant removal secondary to pain. Methods. Five hundred thirty-one patients undergoing syndesmotic stabilization were screened, of which 43 patients (with 58 screws) experiencing postoperative screw breakage met inclusion criteria. Patient charts were retrospectively reviewed for demographic data, comorbidities, time to screw breakage, location of screw breakage, and implant removal. Several radiographic parameters were evaluated for their potential to influence the site of screw breakage. Results. Intraosseous screw breakage occurred in 32 patients (74.4%). Screw breakage occurred exclusively in the tibiofibular clear space in the remaining 11 instances (25.6%). Intraosseous screw breakage was significantly associated with eventual implant removal after breakage (P = .034). Screws placed further from the tibiotalar joint were at less risk for intraosseous breakage (odds ratio 0.818, P = .002). Screws placed at a threshold height of 20 mm or greater were more likely to break in the clear space (odds ratio 12.1, P = .002). Conclusion. Syndesmotic screw breakage may be more problematic than previously described. Intraosseous breakage was associated with higher rates of implant removal secondary to pain in this study. Placement of screws 20 mm or higher from the tibiotalar joint may decrease risk of intraosseous breakage. Levels of Evidence: Level III: Retrospective study

Publisher

SAGE Publications

Subject

Orthopedics and Sports Medicine,Podiatry,Surgery

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