Characteristics of intercalary fragment in posterior malleolus fractures |
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| Institution: | 1. Department of Orthopaedics, The Second Affiliated Hospital, Medical School of Zhejiang University, 88 Jiefang Road, Hangzhou, 310009 China;2. Shaoxing Shangyu Hospital of Traditional Chinese Medicine, 239 Shunjiang West Street, Shangyu, Zhejiang, 312300 China;1. Department of Trauma Surgery, Otto-von-Guericke University, Leipziger Str. 44 Magdeburg, Germany;2. Gesellschaft für klinische und Versorgungsforschung mbH, Halberstädter Str. 40a, Magdeburg, Germany;1. Department of Trauma & Orthopaedics, Altnagelvin Hospital, Glenshane Road, Londonderry BT47 6SB, Northern Ireland, United Kingdom;2. Department of Radiology, Altnagelvin Hospital, Glenshane Road, Londonderry BT47 6SB, Northern Ireland, United Kingdom;1. Department of Trauma and Orthopaedic Surgery, Bart''s Health, NHS Trust, London, United Kingdom;2. Department of Trauma and Orthopaedic Surgery, AUVA Unfallkrankenhaus, Graz, Austria;1. Austral Universitiy Hospital, Buenos Aires, Argentina;2. Fundación Favaloro University Hospital, Buenos Aires, Argentina;3. Italiano Hospital, Buenos Aires, Argentina |
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| Abstract: | BackgroundThe purpose of the study is to investigatethe prevalence of posterior malleolus intercalary fragment (ICF) in adult ankle fractures; to analyze the morphological characteristics of ICF; and its mechanism.MethodsRetrospectively, 247 cases of posterior malleolus fractures (PMF) were included in 369 cases of adult ankle fractures. The prevalence of ICF, relationship between type of ankle fracture, posterior malleolar fracture and the ICF was studied.ResultsAmong 369 cases, the ICF was found in 43% of the PMF and 29% of the hospitalized unstable ankle fractures. Position of ICF is posterolateral in 68 (64%), mid posterior in 20 (19%) and posteromedial in 18 (17%) cases. The prevalence of ICF was 70% in Bartoní?ek classification type III fractures, which was significantly higher than type I, II and IV.ConclusionsThe highest incidence occurs in Bartoní?ek III type fracture. The study helps in further understanding and treatment of the PMF.Level of evidenceLevel IV, case series. |
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| Keywords: | Ankle fracture Posterior malleolus fracture Intercalated bone Impact fragment |
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