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J Craniofac Surg. 2009 Mar;20(2):435-8.

Duraplasty using autologous fascia lata reenforced by on-site pedicled muscle flap: technical note.

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1
Department of Neurosurgery, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey. sylvius@live.com

Abstract

OBJECTIVE:

Postoperative cerebrospinal fluid (CSF) leak is a common complication in the practice of neurosurgery, and various surgical techniques were described to overcome and manage this problem. Besides not applying watertight closure of the duraplasty, the inviability and the poor vascularization of the graft and/or the dura (eg, reoperations, multiple operations, or cranial radiotherapy) may lead to delayed healing of the suture site and resultant persistent CSF leaks. We present a simple technique that uses on-site muscle flap with pedicle to supply and vascularize the autologous fascia lata, preserving the viability of the graft and reenforcing its healing ability.

METHODS:

We applied this technique in 6 patients with postoperative CSF leaks. After harvesting a fascia lata graft with appropriate size from the patients, the graft was sutured to dural defect in watertight fashion. The suboccipital, temporal, and temporal muscles in 4 patients who had posterior fossa duraplasty, in 1 patient who had pterional craniotomy, and in 1 patient who had subtemporal craniotomy, respectively, were dissected, stretched, and sutured to the fascia graft covering the dura graft suture site and then reinforced by Tisseel fibrin glue (Baxter Healthcare Corporation, Deerfield, IL). Postoperatively, CSF lumbar drain was kept open for 72 hours with pressure wound dressing. The technical nuances are illustrated.

RESULTS:

Cerebrospinal fluid leaks were controlled successfully in 5 patients without recurrence. One patient with posterior fossa duraplasty had recurrence of CSF leak that required reexploration 21 days after the first surgery and a second dural repair in a site distant from the fascia lata attachment. During reexploration intraoperatively, the fascia lata graft was inspected and studied, which has shown the healing of the dura graft site and the graft neovascularization.

CONCLUSIONS:

Duraplasty using autologous fascia lata reenforced by on-site pedicled muscle flap is an effective technique to control CSF leak, especially when dura is poorly vascularized and less viable. The unfortunate recurrence of CSF leak and reexploration in the seventh patient helped us to observe the effectively healed dural defect with profound early postoperative vascularization of the graft, supporting our idea about the effectiveness of this technique.

PMID:
19326487
[Indexed for MEDLINE]
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