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Updated: Jul 15, 2026
Three-Dimensional Reconstruction of Orbital Fractures
Published on: May 16, 2025
Inferior Rectus Myositis After Orbital Fracture Repair With the Medpor® Implant in a 38-Year-Old Male Patient
Thomas Ting Hei Tsang1, Fatema Aljufairi1,2, Jake U Sebastian3
1Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, HKG.
Abstract:
We report a rare case of inferior rectus myositis related to a Medpor® orbital implant (Stryker Corporation, Kalamazoo, MI, USA) following orbital fracture repair. A 38-year-old gentleman, who underwent uneventful orbital floor fracture repair using a Medpor® implant, presented a week later with a dull ache and acute onset of diplopia on up- and downgaze. The symptoms were gradually relieved after a secondary transorbital, transantral biplanar surgical approach for removal of an orbital Medpor® implant and repair of the orbital fracture. Despite the high success rates seen with Medpor® orbital implants, the body may recognize the implant as foreign and can mount an immune response against it.
Insights
A rare case of inferior rectus myositis occurred after orbital fracture repair using a Medpor® implant. Surgical removal of the implant resolved the patient's symptoms, highlighting potential immune responses to orbital implants.
Area of Science:
- Ophthalmology
- Reconstructive Surgery
- Biomaterials Science
Background:
- Orbital fracture repair often utilizes implants like Medpor®.
- While generally successful, implants can elicit adverse tissue reactions.
- Inferior rectus myositis is a rare complication following orbital implant placement.
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