Abstract
Objectives: Orbital floor fracture treatment is challenging due to the complexity of its anatomy and limited access. Advances in 3D printing technologies enable more accurate preoperative planning of orbital reconstructions especially if intraoperative computer tomography (CT) or intra operative navigation is not accessible. Aim of the study was to analyse experience with 3D printing and 3D surgical planning with a pre-bended titanium mesh in patients with isolated orbital floor fracture. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the grant agreement No 857287.
Materials and Methods: Three consecutive patients with isolated orbital floor fracture who were treated in Pauls Stradins Clinical University Hospital in 2022 were included in the study. In-house 3D-printed anatomical prototypes, natural and mirrored around the midsagittal plane, were used as bending guides. Open reduction with a transconjunctival approach and orbital floor reconstruction with a pre-bended titanium mesh was performed. The outcomes were analysed quantitatively with Mimics (Materialise, Leuven, Belgium) by measuring the volumes within the bony orbit using computer tomography images.
Results: All patients before surgery were presented with enophthalmos and diplopia and were operated within 4-14 days of the trauma. The difference between the affected and healthy orbital volumes were 2590, 1739 and 786 mm3 before surgery and 787, 392 and 781 mm3 after, respectively. The difference in affected orbital volume before and after surgery was 3058, 1451, 2010 mm3. Inter-rater mean difference between volumetric measurements was 2.5%. Post operative relative mean difference between orbits was 3.5%. Clinically and radiologically all orbital floor reconstructions were successful with no post operative ophthalmic complications.
Conclusion: 3D-printed orbital prototypes seem to be accurate for orbital floor reconstruction planning and give acceptable symmetry of orbital volumes. The study should be continued with more patients. Prototypes were helpful in educating the patients and explaining the surgical procedure.
Materials and Methods: Three consecutive patients with isolated orbital floor fracture who were treated in Pauls Stradins Clinical University Hospital in 2022 were included in the study. In-house 3D-printed anatomical prototypes, natural and mirrored around the midsagittal plane, were used as bending guides. Open reduction with a transconjunctival approach and orbital floor reconstruction with a pre-bended titanium mesh was performed. The outcomes were analysed quantitatively with Mimics (Materialise, Leuven, Belgium) by measuring the volumes within the bony orbit using computer tomography images.
Results: All patients before surgery were presented with enophthalmos and diplopia and were operated within 4-14 days of the trauma. The difference between the affected and healthy orbital volumes were 2590, 1739 and 786 mm3 before surgery and 787, 392 and 781 mm3 after, respectively. The difference in affected orbital volume before and after surgery was 3058, 1451, 2010 mm3. Inter-rater mean difference between volumetric measurements was 2.5%. Post operative relative mean difference between orbits was 3.5%. Clinically and radiologically all orbital floor reconstructions were successful with no post operative ophthalmic complications.
Conclusion: 3D-printed orbital prototypes seem to be accurate for orbital floor reconstruction planning and give acceptable symmetry of orbital volumes. The study should be continued with more patients. Prototypes were helpful in educating the patients and explaining the surgical procedure.
| Original language | English |
|---|---|
| Number of pages | 1 |
| Publication status | Published - 28 Sept 2022 |
| Event | 26th Congress of the European Association for Cranio Maxillo Facial Surgery - Madrid, Spain Duration: 27 Sept 2022 → 30 Sept 2022 Conference number: 26 https://www.emma.events/eacmfs2022/welcome https://www.emedevents.com/c/medical-conferences-2022/european-association-for-cranio-maxillo-facial-surgery-eacmfs-26th-congress-1 |
Congress
| Congress | 26th Congress of the European Association for Cranio Maxillo Facial Surgery |
|---|---|
| Abbreviated title | EACMFS 2022 |
| Country/Territory | Spain |
| City | Madrid |
| Period | 27/09/22 → 30/09/22 |
| Internet address |
Field of Science*
- 3.2 Clinical medicine
- 2.6 Medical engineering
Publication Type*
- 3.4. Other publications in conference proceedings (including local)