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Scientific correspondence
Complications of motility peg placement for porous hydroxyapatite orbital implants
  1. C-J Lin1,
  2. S-L Liao2,
  3. J-R Jou2,
  4. S C S Kao3,
  5. P-K Hou2,
  6. M-S Chen2
  1. 1Departments of Ophthalmology, National Taiwan University Hospital and ChiaYi Christian Hospital, ChiaYi City, Taiwan
  2. 2Department of Ophthalmology, National Taiwan University Hospital, Taiwan
  3. 3Chu-Miao Eye Clinic, Taiwan
  1. Correspondence to: Shu-Lang Liao, MD, Department of Ophthalmology, National Taiwan University Hospital, 7, Chung-Shan South Road, Taipei 100, Taiwan; lang89{at}ha.mc.ntu.edu.tw

Abstract

Aim: To evaluate the complications associated with pegging of porous hydroxyapatite orbital implants.

Methods: Complications associated with pegging were retrospectively reviewed from the charts of 100 of 133 patients with hydroxyapatite implantation from 1993 to 2000.

Results: 48 (48%) of the 100 hydroxyapatite implanted patients who had undergone pegging were found to have problems with their pegs, including discharge (45.8%), peg falling out (20.8%), pyogenic granulomas (16.7%), popping peg (14.6%), hydroxyapatite visible around peg hole (8.3%), part of peg shaft visible (6.2%), peg drilled off centre (6.2%), peg drilled at an angle (4.2%), and excess movement of peg (4.2%). The standard peg fell out statistically more often than the peg and sleeve system (Yates's corrected χ2, p=0.038). There was a trend towards complications of the peg with use of a standard peg (versus sleeved peg) (p=0.226).

Conclusions: There are several potential complications of pegging. Most complications are minor and can be managed successfully.

  • hydroxyapatite implant
  • peg complications

https://doi.org/10.1136/bjo.86.4.394

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