title: Designing an implant by CT scanning and solid modelling. Arthrodesis of the shoulder after excision of the upper humerus.
abstract: Techniques are described by which metal implants can be designed and produced to fit precisely a bony site at a subsequent operation. CT scans and solid modelling were used to produce an accurate three-dimensional representation of the surface of the bone. These techniques were applied to the production of an internal fixation device for shoulder arthrodesis after the resection of a neoplasm of the proximal humerus. The reconstruction utilised a free vascularised fibular graft between the scapula and the distal humeral remnant, fixation being secured with the custom-made implant.
mesh_terms: D000293:Adolescent; D001174:Arthrodesis / Q000379:methods*; D001845:Bone Cysts / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D006811:Humerus / Q000601:surgery*; D007595:Joint Prosthesis; D008297:Male; D008953:Models, Anatomic; D010347:Patient Care Planning; D011474:Prosthesis Design; D014057:Tomography, X-Ray Computed