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- W2024459467 abstract "For patients with facial palsy, lagophthalmus is often a more serious problem than the inability to smile. Dynamic reconstruction of eye closure by muscle transposition or by free functional muscle transplantation offers a good solution for regaining near-normal eye protection without the need for implants. This is the first quantitative study of three-dimensional preoperative and postoperative lid movements in patients treated for facial paralysis. Between February of 1998 and April of 2002, 44 patients were treated for facial palsy, including reconstruction of eye closure. Temporalis muscle transposition to the eye was used in 34 cases, and a regionally differentiated part of a free gracilis muscle transplant after double cross-face nerve grafting was used in 10 cases. Patients’ facial movements were documented by a three-dimensional video analysis system preoperatively and 6, 12, 18, and 24 months postoperatively. For this comparative study, only the data of patients with preoperative and 12-month postoperative measurements were included. In the 27 patients with a final result after temporalis muscle transposition for eye closure, the distance between the upper and lower eyelid points during eye closing (as for sleep) was reduced from 10.33 ± 2.43 mm (mean ± SD) preoperatively to 5.84 ± 4.34 mm postoperatively on the paralyzed side, compared with 0.0 ± 0.0 mm preoperatively and postoperatively on the contralateral healthy side. In the resting position, preoperative values for the paralyzed side changed from 15.11 ± 1.92 mm preoperatively to 13.46 ± 1.94 mm postoperatively, compared with 12.17 ± 2.02 mm preoperatively and 12.05 ± 1.95 mm postoperatively on the healthy side. In the nine patients with a final result after surgery using a part of the free gracilis muscle transplant reinnervated by a zygomatic branch of the contralateral healthy side through a cross-face nerve graft, eyelid closure changed from 10.21 ± 2.72 mm to 1.68 ± 1.35 mm, compared with 13.70 ± 1.56 mm to 6.63 ± 1.51 mm preoperatively. The average closure for the healthy side was from 11.20 ± 3.11 mm to 0.0 ± 0.0 mm preoperatively and from 12.70 ± 1.95 mm to 0.0 ± 0.0 mm postoperatively. In three cases, the resting tonus of the part of the gracilis muscle transplant around the eye had increased to an extent that muscle weakening became necessary. Temporalis muscle transposition and free functional muscle transplantation for reanimation of the eye and mouth at the same time are reliable methods for reconstructing eye closure, with clinically adequate results. Detailed analysis of the resulting facial movements led to an important improvement of the authors’ operative techniques within the last few years. Thus, the number of secondary operative corrections could be significantly reduced. These qualitative and quantitative studies of the reconstructed lid movements by three-dimensional video analysis support the authors’ clinical concept of temporalis muscle transposition being the first-choice method in adult patients with facial palsy. In children, free muscle transplantation is preferred for eye closure, so as not to interfere with the growth of the face by transposition of a masticatory muscle. In addition, a higher degree of central plasticity in children might be expected." @default.
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- W2024459467 date "2004-09-01" @default.
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- W2024459467 title "Dynamic Reconstruction of Eye Closure by Muscle Transposition or Functional Muscle Transplantation in Facial Palsy" @default.
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- W2024459467 doi "https://doi.org/10.1097/01.prs.0000133028.02303.16" @default.
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