Utilizing 3D-Printed Orbital Floor Stamps to Create Patient-Specific Implants for Orbital Floor Reconstruction. 2021

Shamit S Prabhu, and Scotty A Chung, and Philip J Brown, and Christopher M Runyan
Wake Forest School of Medicine.

OBJECTIVE This study seeks to test a novel technique of custom-printed midface contour models with orbital floor "stamps" to guide reconstruction of orbital floor blowout fractures, with or without concomitant zygomaticomaxillary complex injury. METHODS A series of 4 consecutive patients with orbital floor blowout fractures (including 3 with zygomatic maxillary complex fractures) were retrospectively examined for outcomes associated with orbital floor reconstruction using 3-dimensional-printed stamps and midface models. Data collected included demographics, pre- and postoperative visual globe malposition, motility, and visual field disturbances. Three-dimensional printing methodology is reported, as well as associated costs and time required to generate the models and stamps. RESULTS The cost of producing a midface-contour model and orbital floor stamps was $131, inclusive of labor and materials. Cases averaged 170 minutes to segment, design, and print. Patients with preoperative diplopia and motility restrictions had resolution of their symptoms. Two patients had resolution of their enophthalmos, while one patient with a concomitant zygomaticomaxillary fracture had persistent mild enophthalmos. CONCLUSIONS Midface contour models and orbital floor stamps may be produced in a timely and cost-effective manner. Use of these "homemade" stamps allows for patient-specific custom-contoured orbital floor reconstruction. Further studies are warranted to examine long-term visual and esthetic outcomes for these patients.

UI MeSH Term Description Entries
D008440 Maxillary Fractures Fractures of the upper jaw. Fracture, Maxillary,Fractures, Maxillary,Maxillary Fracture
D009917 Orbital Fractures Fractures of the bones in the orbit, which include parts of the frontal, ethmoidal, lacrimal, and sphenoid bones and the maxilla and zygoma. Blow Out Fracture,Blow-Out Fractures,Fractures, Blow-Out,Orbital Fracture,Blow Out Fractures,Blow-Out Fracture,Fracture, Blow Out,Fracture, Blow-Out,Fracture, Orbital,Fractures, Blow Out,Fractures, Orbital,Out Fracture, Blow,Out Fractures, Blow
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012189 Retrospective Studies Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons. Retrospective Study,Studies, Retrospective,Study, Retrospective
D014057 Tomography, X-Ray Computed Tomography using x-ray transmission and a computer algorithm to reconstruct the image. CAT Scan, X-Ray,CT Scan, X-Ray,Cine-CT,Computerized Tomography, X-Ray,Electron Beam Computed Tomography,Tomodensitometry,Tomography, Transmission Computed,X-Ray Tomography, Computed,CAT Scan, X Ray,CT X Ray,Computed Tomography, X-Ray,Computed X Ray Tomography,Computerized Tomography, X Ray,Electron Beam Tomography,Tomography, X Ray Computed,Tomography, X-Ray Computer Assisted,Tomography, X-Ray Computerized,Tomography, X-Ray Computerized Axial,Tomography, Xray Computed,X Ray Computerized Tomography,X Ray Tomography, Computed,X-Ray Computer Assisted Tomography,X-Ray Computerized Axial Tomography,Beam Tomography, Electron,CAT Scans, X-Ray,CT Scan, X Ray,CT Scans, X-Ray,CT X Rays,Cine CT,Computed Tomography, Transmission,Computed Tomography, X Ray,Computed Tomography, Xray,Computed X-Ray Tomography,Scan, X-Ray CAT,Scan, X-Ray CT,Scans, X-Ray CAT,Scans, X-Ray CT,Tomographies, Computed X-Ray,Tomography, Computed X-Ray,Tomography, Electron Beam,Tomography, X Ray Computer Assisted,Tomography, X Ray Computerized,Tomography, X Ray Computerized Axial,Transmission Computed Tomography,X Ray Computer Assisted Tomography,X Ray Computerized Axial Tomography,X Ray, CT,X Rays, CT,X-Ray CAT Scan,X-Ray CAT Scans,X-Ray CT Scan,X-Ray CT Scans,X-Ray Computed Tomography,X-Ray Computerized Tomography,Xray Computed Tomography
D015051 Zygomatic Fractures Fractures of the zygoma. Fracture, Zygomatic,Fractures, Zygomatic,Zygomatic Fracture
D015841 Enophthalmos Recession of the eyeball into the orbit.
D019651 Plastic Surgery Procedures Procedures used to reconstruct, restore, or improve defective, damaged, or missing structures. Cosmetic Reconstructive Surgical Procedures,Cosmetic Surgical Procedures,Esthetic Reconstructive Surgical Procedures,Esthetic Surgical Procedures,Plastic Surgical Procedures,Reconstructive Surgical Procedures,Reconstructive Surgical Procedures, Cosmetic,Cosmetic Reconstructive Surgery,Procedure, Reconstructive Surgical,Procedures, Reconstructive Surgical,Reconstructive Surgical Procedure,Reconstructive Surgical Procedures, Esthetic,Surgical Procedure, Reconstructive,Surgical Procedures, Reconstructive,Cosmetic Reconstructive Surgeries,Cosmetic Surgical Procedure,Esthetic Surgical Procedure,Plastic Surgery Procedure,Plastic Surgical Procedure,Procedure, Cosmetic Surgical,Procedure, Esthetic Surgical,Procedure, Plastic Surgery,Procedure, Plastic Surgical,Procedures, Cosmetic Surgical,Procedures, Esthetic Surgical,Procedures, Plastic Surgery,Procedures, Plastic Surgical,Reconstructive Surgeries, Cosmetic,Reconstructive Surgery, Cosmetic,Surgeries, Cosmetic Reconstructive,Surgery Procedure, Plastic,Surgery Procedures, Plastic,Surgery, Cosmetic Reconstructive,Surgical Procedure, Cosmetic,Surgical Procedure, Esthetic,Surgical Procedure, Plastic,Surgical Procedures, Cosmetic,Surgical Procedures, Esthetic,Surgical Procedures, Plastic
D020273 Orbital Implants Rounded objects made of coral, teflon, or alloplastic polymer and covered with sclera, and which are implanted in the orbit following enucleation. An artificial eye (EYE, ARTIFICIAL) is usually attached to the anterior of the orbital implant for cosmetic purposes. Implant, Orbital,Implants, Orbital,Orbital Implant
D066330 Printing, Three-Dimensional Process for making, building or constructing a physical object from a three-dimensional digital model by laying down many successive thin layers of building material. 3-D Printing,3-Dimensional Printing,3D Printing,Three-Dimensional Printing,3 D Printing,3 Dimensional Printing,3-D Printings,3-Dimensional Printings,3D Printings,Printing, 3-D,Printing, 3-Dimensional,Printing, 3D,Printing, Three Dimensional,Printings, 3-D,Printings, 3-Dimensional,Printings, 3D,Printings, Three-Dimensional,Three Dimensional Printing,Three-Dimensional Printings

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