Abstract
There are numerous orthopaedic applications of three-dimensional (3D) printing for the pelvis and acetabulum. The authors reviewed recently published articles and summarized their experience. 3D printed anatomical models are particularly useful in pelvic and acetabular fracture surgery for planning, implant templating and for anatomical assessment of pathologies such as CAM-type femoroacetabular impingement and rare deformities. Custom-made metal 3D printed patient-specific implants and instruments are increasingly being studied for pelvic oncologic resection and reconstruction of resected defects as well as for revision hip arthroplasties with favourable results. This article also discusses cost-effectiveness considerations when preparing pelvic 3D printed models from a hospital 3D printing centre.
Highlights
Three-dimensional (3D) printing is increasingly applied in orthopaedics and traumatology [1, 2]
In CAMtype femoroacetabular impingement (FAI) osteoplasty, Wong [16] reported that 3D printed femoral and acetabular models allowed a dynamic appreciation of the site of impingement with the 3D printed femur and acetabulum models
Compared to conventional radiographic planning, nine out of 10 femurs and 10 out of 10 acetabula required a change in osteoplasty site
Summary
Three-dimensional (3D) printing is increasingly applied in orthopaedics and traumatology [1, 2]. A meta-analysis by Zhang [8] of nine case-control studies consisting of 638 patients concluded that 3D printed bone models for surgical planning in pelvic and acetabular fractures resulted in a statistically significant reduction in surgical time, blood loss and the likelihood of inadequate fracture reduction compared to conventional imaging-based planning techniques. The authors [18] reported the successful use of a 3D printed bone model for accurate implant contouring before minimal invasive plate repair through an anterior approach at a fractured hip fusion site. Their centres find 3D printed models valuable for evaluating pelvic deformities in patients with skeletal dysplasia and neuromuscular conditions Surgical applications of three-dimensional printing in the pelvis and acetabulum: from models and tools to implants
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