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Incidence and clinical results of tendinous injuries in calcaneus and pilon fractures

  • Trauma Surgery
  • Published:
Archives of Orthopaedic and Trauma Surgery Aims and scope Submit manuscript

Abstract

Purpose

The aims of this study were: (1) to define the incidence of tendinous injuries in calcaneus and pilon fractures with different fracture severity and (2) to determine the clinical impact of such injuries.

Study design and methods

CT-scans of 121 patients with calcaneus and pilon fractures were retrospectively analyzed over a 4-year period. The tendinous injuries were identified and correlated with the type of fracture (location and classification). Clinical analysis was performed using the American Orthopedic Foot and Ankle Society (AOFAS) and SF-36 (Short Form-36 Health Survey) scores.

Results

Tendinous injuries were observed in 36% of all CT-scans analyzed, with the most common injury being incarceration (n = 20) and dislocation (n = 24).

Calcaneus fractures sanders type 3/4 were 9 times more prone to tendon injury (p < 0.001; OR 8.67; 95% CI 2.49–30.24). Pilon fractures Ruedi–Allgower type 2/3 were 8 times more prone to tendon injury (p = 0.005; OR 7.5; 95% CI 1.72–32.80). No significant differences (p > 0.05) were found in AOFAS and SF-36 scores between patients with/without tendon injuries for fractures with the same severity.

Conclusion

The incidence of tendon injuries in calcaneus/pilon fractures is high and may be underreported. Calcaneus fractures are prone to peroneal tendon injury. In pilon fractures, it is important to look for tibialis posterior tendon injury, especially entrapment.

The presence of tendinous injuries does not affect function and pain for the same type of calcaneus and pilon fractures at the long term.

Level of Evidence

Level 3 retrospective study.

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Authors and Affiliations

  1. Department of Orthopaedics, Centro Hospitalar e Universitário do Porto, Porto, Portugal

    Arnaldo Sousa & Ricardo Rodrigues-Pinto

  2. Department of Radiology, Centro Hospitalar e Universitário do Porto, Porto, Portugal

    João Carvalho & João Amorim

  3. Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal

    Arnaldo Sousa, João Carvalho, João Amorim & Ricardo Rodrigues-Pinto

Authors
  1. Arnaldo Sousa
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  2. João Carvalho
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  4. Ricardo Rodrigues-Pinto
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Correspondence to Ricardo Rodrigues-Pinto.

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The author declares that the research for and writing of this independent body of work does not constitute any financial or other conflict of interest.

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This study was made after institutional review board approval.

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No informed consent from the patients was needed since all the data presented are collected on the daily bases as a standard care of our patients.

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Sousa, A., Carvalho, J., Amorim, J. et al. Incidence and clinical results of tendinous injuries in calcaneus and pilon fractures. Arch Orthop Trauma Surg 143, 359–363 (2023). https://doi.org/10.1007/s00402-022-04343-2

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  • DOI: https://doi.org/10.1007/s00402-022-04343-2

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