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  • Title: Pre-operative virtual simulation and three-dimensional printing techniques for the surgical management of acetabular fractures.
    Author: Hsu CL, Chou YC, Li YT, Chen JE, Hung CC, Wu CC, Shen HC, Yeh TT.
    Journal: Int Orthop; 2019 Aug; 43(8):1969-1976. PubMed ID: 30128670.
    Abstract:
    PURPOSE: Surgical treatment of acetabular fractures with plate fixation is challenging for orthopaedic surgeons because of variations of the surface curvature and complex fracture patterns of the acetabulum. We present our experience with pre-operative computer-assisted virtual simulation and three-dimensional (3D) printing techniques for the surgical treatment of acetabular fractures, especially in terms of operative time and surgical outcomes. METHODS: Twenty-nine patients with acetabular fractures treated with locking plates were included in this retrospective study (conventional locking plate fixation, n = 17; 3D-printing-assisted precontoured locking plate fixation, n = 12). Fracture types were classified according to the Letournel-Judet classification. Surgical duration, instrumentation time, blood loss, post-operative fracture reduction quality, and complication rates were compared between the two surgical groups. RESULTS: The 3D-printing group had a significantly shorter total surgical duration and instrumentation time for fractures with posterior wall or posterior column involvement (222.75 ± 48.12 and 35.75 ± 9.21 minutes, respectively; P < 0.05) and significantly shorter instrumentation time and less blood loss for fractures with anterior column involvement (43.40 ± 10.92 minutes and 433.33 ± 317.28 mL, respectively; P < 0.05) than those in the control group. The post-operative radiological results (assessed by consensus) were similar for both groups (good/fair: 14/3 vs. 11/1; P = 0.622). The complication rate was lower in the 3D-printing group than in the conventional group (16.67 vs. 29.41%). CONCLUSIONS: The 3D printing is a reliable method for treating acetabular fractures, and can reduce the surgical duration, instrumentation time, and blood loss.
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