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Could percutaneous fixation with crossed Schanz pins be an alternative to open reduction in the treatment of intra-articular calcaneal fractures?

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Abstract

Purpose

Despite modern operative techniques and a considerable number of studies in the literature, the best treatment for calcaneal fractures remains an enigma for orthopaedic surgeons. The purpose of the study was to compare clinical and radiographic outcomes between anatomic calcaneal plate (ACP) fixation and crossed Schanz pin (CSP) fixation in the treatment of Sanders type II and III displaced intra-articular calcaneus fractures (DICFs).

Methods

Consecutive 65 patients (49 males, 16 females) who underwent surgery for DCIFs between January 2009 and February 2013 were retrospectively evaluated. The patients were divided into two groups as ACP and CSP according to the operative technique. The groups were compared in terms of demographic features, injury mechanism, operation time, fluoroscopy exposure, complications, full weight-bearing time, functional, and radiological outcomes.

Results

VAS-rest score did not differ significantly between the groups while the VAS-activity score was significantly higher in the CSP group (p = 0.001 and p = 0.645, respectively). Foot Function Index (FFI) was significantly lower, Maryland Foot Score (MFS) and the American Orthopaedic Foot and Ankle Society-hindfoot score (AOFAS) were significantly higher in the ACP group (p = 0.047, p = 0.016, and p < 0.001, respectively). While no difference was observed between the preoperative and the early post-operative (1st day) Böhler angle and Gissane angle, both were significantly higher in the ACP group at the post-operative last control (p < 0.001 and p < 0.001, respectively).

Conclusion

Although crossed Schanz pin fixation shortens the operation time in displaced intra-articular calcaneus fractures compared to anatomic calcaneal plate, increased fluoroscopy exposure rates and low functional and radiological outcomes are disadvantageous of crossed Schanz pin. Anatomic calcaneal plate is still a better technique for preserving the alignment and elevating the displaced intra-articular segment for good to excellent mid-term results.

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Correspondence to Altuğ Duramaz.

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The authors declared no potential conflicts of interest concerning the research, authorship, and/or publication of this article. We wish to confirm that there are no known conflicts of interest associated with this publication and there has been no significant financial support for this work that could have influenced its outcome. We confirm that the manuscript has been read and approved by all named authors and that there are no other persons who satisfied the criteria for authorship but are not listed. We further confirm that the order of authors listed in the manuscript has been approved by all of us. We confirm that we have given due consideration to the protection of intellectual property associated with this work and that there are no impediments to publication, including the timing of publication, concerning intellectual property. In so doing, we confirm that we have followed the regulations of our institutions concerning intellectual property. We further confirm that any aspect of the work covered in this manuscript that has involved either experimental animals or human patients has been conducted with the ethical approval of all relevant bodies and that such approvals are acknowledged within the manuscript. We understand that the Corresponding Author is the sole contact for the editorial process (including Editorial Manager and direct communications with the office). He is responsible for communicating with the other authors about progress, submissions of revisions and final approval of proofs. We confirm that we have provided a current, correct email address.

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The study entitled “Could percutaneous fixation with crossed Schanz pins be an alternative to open reduction in the treatment of intraarticular calcaneal fractures?” was performed in Bakırköy Dr. Sadi Konuk Education and Research Hospital, Department of Orthopedics and Traumatology, Istanbul, Turkey.

The discussed data was also presented as an oral presentation in the First Balkan Foot and Ankle Meeting, on 6-8th September 2018, at Thessaloniki, Greece.

Level of evidence: III, retrospective comparative study

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Duramaz, A., Polat, Ö., İlter, M.H. et al. Could percutaneous fixation with crossed Schanz pins be an alternative to open reduction in the treatment of intra-articular calcaneal fractures?. International Orthopaedics (SICOT) 45, 731–741 (2021). https://doi.org/10.1007/s00264-021-04944-3

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