• E W M Engelmann, O Wijers, J J Posthuma, and T Schepers.
• Trauma Unit, Amsterdam University Medical Center, location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands.
• Injury. 2020 Nov 1; 51 (11): 2414-2420.

BackgroundFractures of the posterior process of the talus are rare and frequently overlooked, possibly leading to pseudo-arthrosis and chronic pain. To gain more insight into the diagnosis, treatment and outcome of fractures of the posterior process of the talus (PPTF), a systematic review of the current literature was performed to provide recommendations for the management of PPTF.MethodsA literature search in the electronic databases of PubMed, EMbase, Google Scholar and Cochrane library was performed in January 2020 to identify all clinical studies on PPTF with more than three patients. Amongst other variables, the type of study, number of patients, mechanism of injury, type of fracture (anatomy), imaging modality, treatment, postoperative protocol, outcomes, complications and duration of follow-up were noted for systematic analysis of the available evidence, adherent to the PRISMA guidelines.ResultsSeven original studies were included with a total of 66 patients. More than one third of patients presented with a (sub)talar joint dislocation (n = 25, 37.9%) and 51.5% sustained associated ipsilateral lower extremity fractures (n = 34). Delayed diagnosis occurred in 36.4% of patients (n = 24). Out of 48 patients with outcome data available, 41.7% (n = 20) reported impaired function. In the non-operative group, 64.7% (n = 11) had impaired functional outcome, compared to 33.3% (n = 6) in the ORIF group, and 30.8% (n = 4) in the fragment excision group (p < 0.001). One third of the patients developed one or more complications (n = 25, 37.9%), mostly found in the non-operatively treated group (73.7%, n = 14) compared to ORIF (25.0%, n = 8, p < 0.001).ConclusionEarly recognition and timely treatment is warranted in order to achieve pre-injury functional outcome and reduce morbidity. Given the significantly higher complication rate and lower return to the previous level of functionality reported after non-operative treatment, ORIF is recommended if there is (even minimal) displacement, articular involvement or if the fracture extends into the talus body.Copyright © 2020 Elsevier Ltd. All rights reserved.

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