In traditional surgical methods, surgeons make surgical plans according to two-dimensional (2D) imaging techniques such as digital radiography (DR), computerised tomography (CT) and magnetic resonance imaging (MRI). Although many traumatic fractures require surgical treatment, conservative treatment is considered for some patients with fractures. Fracture treatment entail reduction and fixation. Previous studies established that most common mechanism for traumatic fractures include low-energy injuries such as slipping, tripping, and falling, as well as traffic accidents ( 4). Traumatic fracture is a common orthopaedic disease that consumes immense amounts of medical health resources ( 2, 3). Previous studies report that traumatic fractures are leading causes of death and disability worldwide ( 1). Systematic Review Registration: CRD42021239507. Moreover, the current study did not report significant differences in incidence of complications between the two approaches. No significant differences in complication rates were observed between the two types of surgery (OR = 0.69, 95% CI 0.69 ~ 1.42, P = 0.32).Ĭonclusions: Indicators including operation duration, intraoperative blood loss, number of intraoperative fluoroscopies, fracture union time, and rates of excellent outcomes showed that 3D printing-assisted surgery is a superior alternative in treatment of traumatic fractures compared with conventional surgery. Pooled findings showed that 3D printing-assisted surgery had shorter operation duration, less intraoperative blood loss (SMD = 1.34, 95% CI 1.74 ~ 0.94, P < 0.00001), fewer intraoperative fluoroscopies (SMD = 1.25, 95% CI 1.64 ~ 0.87, P < 0.00001), shorter fracture union time (SMD = −0.15, 95% CI −0.25 ~ −0.05, P = 0.003), and higher rate of excellent outcomes (OR = 2.40, 95% CI 1.07 ~ 5.37, P = 0.03) compared with conventional surgery. Results: A total of 12 RCTs involving 641 patients were included. RevMan V.5.3 software was used to conduct meta-analysis. conventional surgery for traumatic fractures were reviewed. All randomised controlled trials (RCTs) comparing efficacy of 3D printing-assisted surgery vs. Materials and Methods: Embase, PubMed and Cochrane Library databases were systematically searched until October, 2020 to identify relevant studies. However, effectiveness of 3D printing-assisted surgery lacks evidence-based findings to support its application. 3Department of Intensive Care Unit, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Chinaīackground: Traumatic fracture is a common orthopaedic disease, and application of 3D printing technology in fracture treatment, which entails utilisation of pre-operative printed anatomic fracture model, is increasingly gaining popularity.2Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Engineering Research Center of Stem Cell Therapy, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.1Department of Orthopaedics, Children's Hospital of Chongqing Medical University, Chongqing, China.Sha Yang 1,2 Huapeng Lin 3 Cong Luo 1,2 *
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