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Porous polyethylene implants in orbital floor reconstruction
Pedro M Villarreal1, Florencio Monje, Antonio J Morillo
1Department of Oral and Maxillofacial Surgery, Hospital Infanta Cristina, Carretera de Portugal s/n, 06080-Badajoz, Spain. pedrovillareal@eresmas.com
Plastic and Reconstructive Surgery
|March 9, 2002
Summary
Porous polyethylene ultrathin sheets effectively reconstruct orbital floor fractures, improving enophthalmos, hypoglobus, and diplopia. While complications like nerve hypesthesia and infections occurred, the material shows promise for orbital reconstruction.
Area of Science:
- Ophthalmology
- Plastic Surgery
- Biomaterials Science
Background:
- Orbital floor fractures are common sequelae of facial trauma.
- Reconstruction of the orbital floor is crucial for restoring ocular function and aesthetics.
- Porous polyethylene has emerged as a potential biomaterial for orbital reconstruction due to its biocompatibility and ease of manipulation.
Purpose of the Study:
- To evaluate the efficacy and safety of porous polyethylene ultrathin sheets for orbital floor reconstruction.
- To analyze the functional and aesthetic outcomes following reconstruction with this material.
- To identify potential complications associated with the use of porous polyethylene in orbital floor repair.
Main Methods:
- A retrospective study of 32 patients with orbital floor fractures treated with porous polyethylene ultrathin sheets.
- Fracture types included orbitozygomatic, pure orbital floor, and panfacial fractures.
- Various surgical approaches were utilized, including subciliary and transconjunctival methods.
Main Results:
- Successful correction of enophthalmos in 62.5% and hypoglobus in 82% of patients.
- Significant improvement in diplopia (89.3%) and extrinsic eye movement impairment (92.6%).
- Complications included infraorbital nerve hypesthesia (34.6%), epiphora (18.8%), ectropion (15.6%), and four cases of postoperative facial infections.
Conclusions:
- Porous polyethylene ultrathin sheets are a viable option for orbital floor reconstruction, offering good functional and aesthetic outcomes.
- While complications exist, they are generally manageable and do not outweigh the benefits of the material.
- Further research may explore optimizing surgical techniques to minimize complications and enhance patient outcomes.