• F K Massen, S F Baumbach, W Böcker, C Kammerlander, V Herterich, and H Polzer.
• Sektion für Fuß- Sprunggelenkchirurgie, Klinik für Allgemeine, Unfall- und Wiederherstellungschirurgie, Klinikum der Ludwig-Maximilians-Universität München, München, Deutschland.
• Unfallchirurg. 2018 Sep 1; 121 (9): 730-738.

AbstractFractures to the anterior process of the calcaneus (PAC) have long been considered rare injuries and have received little attention in clinical research. On the contrary, recent studies have reported a distinct higher incidence, especially following ankle sprains. Decisive reasons are that fractures of the PAC are regularly missed on plain radiographs and that a clinical differentiation from injuries to the lateral ankle ligaments is difficult. With the broad availability of cross-sectional imaging modalities fractures of the PAC are diagnosed more frequently and more reliably. The purpose of this review is to give an overview on the diagnostics, classification and treatment recommendations to this topic and discuss the studies available. To date no evidence-based recommendations are available for the treatment of fractures of the PAC. The few case reports and case series published, predominantly recommend conservative treatment; however, the treatment regimens vary considerably, ranging from immobilization in a lower leg cast (2-10 weeks) to early functional treatment with full weight-bearing. The surgical treatment by open reduction and internal fixation has been described primarily for large dislocated fractures. Surgical excision is considered mainly in cases of persistent pain or symptomatic non-union following non-operative treatment. For both, non-operative and operative treatment, the case reports and case series report satisfactory outcomes for the majority of patients. Nevertheless, comparative studies and patient-rated outcome measures are missing. Therefore, evidence-based recommendations cannot be given.

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