Qual a melhor incidência radiográfica para avaliar o desvio das fraturas tipo die-punch? Estudo em cadáver

Introduction Die punch (DP) fragments are among the most common fracture fragments to lose reduction after volar locked plating of articular distal radius fractures (DRFs). We aimed to report the number of patients in our institution who had a computed tomography (CT)-confirmed DP fragment and who had open reduction and internal fixation (ORIF) through a dorsal approach; to report the length of the radioulnar portion of the DP fragment relative to the total distal radioulnar joint (DRUJ) length; and to identify if an association exists between this length and the choice for a volar versus a dorsal operative approach to the DP fragment. Materials and Methods We performed measurements on the preoperative CT scans of 94 skeletally mature patients with a DP fragment. We also collected data related to their demographics, injury, and treatment. Of the 94 patients in this study, 84 (89%) had AO type C fractures. Results Thirteen out of 94 patients (14%) who had ORIF of their DRF with a DP fragment had a separate dorsal incision. The mean proportion of the DP fragment length relative to the total DRUJ length was 0.51 ± 0.19. There was no association between the length of the DP fragment and volar versus dorsal approach. Conclusion DP fragment size is not an indicator of the need for or use of a dorsal approach in DRF fixation. Level of Evidence This is a Level IV,—retrospective study.

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The Die Punch Fragment: Analysis of Fragment Geometry and Need for Fixation

Özkan

Verhiel

Jayasinghe

et al. 2022

Journal of Hand and Microsurgery

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Identification of a novel three‑column classification for double‑column die‑punch fractures of the distal radius

Liu¹,

Liu

et al. 2020

Exp Ther Med

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The present study aimed to classify double-column die-punch fractures of the distal radius according to imaging data, and to evaluate their clinical features. A retrospective analysis of imaging data derived from 498 patients diagnosed with a double-column die-punch fracture of the distal radius was performed. The fractures were divided into those with middle-column avulsion with fracture of the radial-column articular surface (type I), those with middle-column collapse with fracture of the radial-column articular surface (type II), those with middle-column collapse with fracture of epiphysis of the radial column (type III) or mixed-type fractures (type IV). The intra-and inter-observer consistency between assessors was analyzed with kappa statistics. The patients with double-column die-punch fractures of the distal radius were followed up. There were 21 cases of type I fracture, 135 cases of type II fracture, 130 cases of type III fracture and 212 cases of type IV fracture. The intra-observer kappa coefficient ranged from 0.810-0.861, whereas the inter-observer kappa coefficient range was 0.830-0.876, with high consistency. Following 13 months of follow-up, the patients were assessed for functional recovery of the wrist and hand using the Gartland-Werley scoring system. The analysis indicated that in 95.78% of the patients, wrist function was rated as excellent or good (n=477), while in 4.22% of patients it was rated as fair (n=21), mainly due to the development of post-traumatic arthritis of the wrist following inappropriate therapy. All of the cases were type IV and type III fractures. These data demonstrated the application of a novel classification system named the Three-Column Classification, used to classify double-column die-punch fractures of the distal radius. This method reflected the mechanisms and severity of the fractures, conforming to the principle of AO fracture classification. Furthermore, it exhibited high consistency and may provide reference values for clinical diagnosis, treatment and prognostic evaluation.

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Qual a melhor incidência radiográfica para avaliar o desvio das fraturas tipo die-punch? Estudo em cadáver

Cited by 2 publications

References 3 publications

The Die Punch Fragment: Analysis of Fragment Geometry and Need for Fixation

The Die Punch Fragment: Analysis of Fragment Geometry and Need for Fixation

Identification of a novel three‑column classification for double‑column die‑punch fractures of the distal radius

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