Factors associated with nonunion of the posttraumatic subtalar arthrodesis after displaced intra-articular calcaneal fractures |
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| Affiliation: | 1. Department for Foot and Ankle Surgery Rummelsberg and Nuremberg, Schwarzenbruck, Germany;2. Stockholms Fotkirurgklinik, Sophiahemmet University, Stockholm, Sweden;3. Service de Chirurgie Orthopedique et Traumatologique, Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, Pierre-Benite Cedex, France;4. Laboratoire de Biomécanique et Mécanique des Chocs, Université Lyon 1, Bron cedex, France;5. Orthopedic Department at University Hospital Uppsala, Uppsala, Sweden and Department of Foot and Ankle Surgery, Capio Movement, Halmstad, Sweden;6. Charlottenlund, Denmark;7. Department of Musculoskeletal Disorders, School of Medicine and Surgery, University of Salerno, Salerno, Italy;8. Queen Mary University of London, Centre for Sports and Exercise Medicine, London, UK;9. Keele University, School of Medicine, Institute of Science and Technology in Medicine, Guy Hilton Research Centre, Thornburrow Drive, Hartshill, Stoke-on-Trent, UK; England Dentistry, London, UK;10. School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, Scotland, UK;11. Department of Orthopaedic Surgery, Hospital Sant Rafael, Barcelona, Spain;12. Centre of Orthopaedics, North Estonia Medical Centre, Tallinn, Estonia;13. Department of Orthopaedics, East-Tallinn Central Hospital, Tallinn, Estonia;1. Department of Orthopedics, The 925th Hospital, 67# Huanghe RD, Guiyang 550009, Guizhou, China;2. Department of Anaesthesia, The 925th Hospital, 67# Huanghe RD, China;3. Department of Orthopedics, Xinqiao Hospital, 400037 Chongqing, China;1. Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Sakarya University, Sakarya, Turkey;2. Division of Rheumatology, Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Sakarya University, Sakarya, Turkey;3. Division of Rheumatology, Department of Physical Medicine and Rehabilitation, Mehmet Akif Ersoy State Hospital, Canakkale, Turkey;4. Division of Rheumatology, Department of Physical Medicine and Rehabilitation, Kanuni Sultan Süleyman Training and Research Hospital, Istanbul, Turkey;1. Ankle and Foot Unit, Humanitas San Pio X Hospital, Milan, Italy;2. Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel |
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| Abstract: | BackgroundThis study investigated the incidence of and risk factors for nonunion in patients with posttraumatic subtalar arthrodesis (SA).MethodsWe retrospectively reviewed 165 posttraumatic SA cases. Nonunion was diagnosed at 6 months after surgery based on the findings of clinical evaluations, plain radiographs, and CT scans. Patient-specific factors and surgeon-specific factors were evaluated as potential risk factors.ResultsThe overall nonunion rate was 13.3 % (22 of 165 cases). In the final multivariate logistic regression analysis, smoking (odds ratio [OR] = 3.64; 95 % confidence interval [CI] = 1.23–10.75), parallel screw configuration (OR = 5.70; 95 % CI = 1.62–20.06), and freeze dried iliac crest (OR = 9.16; 95 % CI = 2.28–36.79) were demonstrated as risk factors for nonunion of posttraumatic SA.ConclusionPatients with a history of smoking, parallel screw configuration fixation, and those who received freeze dried iliac crest as an interpositional graft, had a significantly higher rate of nonunion. |
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| Keywords: | Subtalar joint Subtalar arthrodesis Nonunion Risk factors |
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