Orbital blowout fractures repair using porous polyethylene titanium mesh implants

Abstract

Objective To observe the clinical efficacy of porous polyethylene titanium mesh implants for orbital blowout fractures. Methods The data of 20 eyes of 20 cases of blowout orbital fracture were retrospectively analyzed, including 6 cases of orbital medial wall fractures, 6 cases of orbital floor fractures, and 8 cases of orbital floor and medial wall fractures. There were 6 cases with diplopia, 6 cases with enophthalmos more than 3 mm, 2 cases with apparent downward globe dystopia, 6 cases of the fracture area over 20mm×20mm with herniation of large amount of orbital contents. Orbital fracture repair surgery was performed in all cases. The diorthosis of orbital fracture with an incision at inner canthus to implant porous polyethylene titanium mesh was performed in 6 cases of orbital medial wall fractures. Diorthosis of orbital fracture with an incision at lower palpebral margin to implant prefabricated mesh was performed in the rest 14 cases. Results All patients were followed up for 3 to 6 months.Diplopia was completely disappeared in 5 cases, and improved in 1 case. The 6 cases of enophthalmos was successfully corrected to less than 2 mm of enophthalmos. The vertical globe dystopia of the 2 cases disappeared. 6 cases of the fracture area more than 20 mm×20 mm had not showed enophthalmos. No visual acuity impairment was observed.No complications such as limited eyeball movement, rejection or migration of the implants occurred. Conclusion Porous polyethylene titanium mesh implants for orbital blowout fractures is safe, effective and stable. Key words: Fractures, orbital, blowout; Titanium mesh, porous polyethylene