Free Tensor Fascia Lata-Iliac Crest Osteomusculocutaneous Flap for Reconstruction of Combined Maxillectomy and Orbital Floor Defect

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Reconstruction of maxillectomy with extensive orbital rim and floor excision defects is a challenging problem. The goal of reconstruction here is to provide adequate orbital support to prevent enophthalmos and diplopia as well as obturation of the palatal defect. The existing methods of the reconstruction fail to simultaneously address these 2 goals of reconstruction. A new method of reconstruction of these defects using tensor fascia lata-iliac crest flap was used in 7 cases of cancers of the maxilla, which necessitated extensive resection of the orbital floor along with the maxillectomy. The flap was raised as a muscle and bone flap in 5 cases and in 2, a skin paddle was included. The immediate and delayed outcome at 6-month follow-up was analyzed. The functional outcome with regards to the ocular position and function, palatal obturation, speech, and swallowing were recorded. The bone viability at 6 months was assessed by computed tomography scan. The flap was successful in all the 7 cases. The delayed outcome assessment showed that the orbital support was excellent with no diplopia in all the cases. The palatal defect could be covered successfully in all the cases, resulting in normal speech and swallowing. The computed tomography scan showed excellent integration of the bone. The free tensor fascia lata-iliac crest flap is a reliable and safe method of reconstruction of the orbitomaxillary defects, addressing the issues of both orbital support and palatal obturation.

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