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Distal articular involvement in tibial shaft fractures: an evaluation of 125 consecutive cases
Fernando Bidolegui1, Sebastián Pereira2, Germán Garabano3
1Orthopaedics and Trauma Surgery Department, Sirio Libanes Hospital, Campana 4658, C1419, Buenos Aires, Argentina. fbidolegui@gmail.com.
Purpose:
To report the incidence and morphology of ipsilateral distal articular involvement (DAI) in a consecutive series of tibial shaft fractures.
Method:
A retrospective review was performed on 115 patients who underwent intramedullary nailing for tibia shaft fractures. Ankle evaluations included preoperative radiographs and computed tomography (CT) scans in all patients.
Results:
Thirty-two patients (27.8%) in our series presented with tibial shaft fractures associated with DAI. Tibial spiral fractures (42A1) were significantly related to DAI (RR: 1788). In 28 (87.5%; 28/32) articular fractures, posterior malleolus fractures (PMF) were present; 22 were isolated, and six (18.8%) occurred in combination with medial malleolus or anterolateral fractures. The remaining (12.5%; 4/32) were isolated medial malleolus fractures. Ten (31.2%; 10/32) articular fractures were occult on the radiographs and only detected on CT scan.
Conclusion:
DAI is common in tibial shaft fractures. CT evaluation is mandatory due to the high number of occult fractures. Although isolated PMF is the most frequent pattern of DAI involvement, 31.3% of the cases exhibited different patterns.
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