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  • Title: Inferior gluteal artery perforator flap: a viable alternative for ischial pressure sores.
    Author: Kim YS, Lew DH, Roh TS, Yoo WM, Lee WJ, Tark KC.
    Journal: J Plast Reconstr Aesthet Surg; 2009 Oct; 62(10):1347-54. PubMed ID: 18799379.
    Abstract:
    The ischial area is by far the most common site for pressure sores in wheelchair-bound paraplegic patients, because most of the pressure of the body is exerted on this area in the seated position. Even after a series of successful pressure sore treatments, the site is very prone to relapse from the simplest everyday tasks. Therefore, it is crucial to preserve the main pedicle during primary surgery. Several surgical procedures, such as myocutaneous flap and perforator flap, have been introduced for the treatment of pressure sores. During a 4-year time period at our institute, we found favourable clinical results using the inferior gluteal artery perforator (IGAP) procedure for ischial sore treatment. A total of 23 patients (20 males and three females) received IGAP flap surgery in our hospital from January 2003 to January 2007. Surgery was performed on the same site again in 10 (43%) patients who had originally relapsed after undergoing the conventional method of pressure sore surgery. The average age of patients was 47.4 years (range 26-71 years). Most of the patients were paraplegic (16 cases, 70%) and others were either quadriplegic (four cases, 17%) or ambulatory (three cases, 13%). Based on hospital records and clinical photographs, we attempted to assess the feasibility and practicability of the IGAP flap procedure through comparative analysis of several parameters including the size of the defective area, treatment modalities, relapses, complications, and postoperative treatments. The average follow-up duration for 23 subjects was 25.4 months (range 5-42 months). All flaps survived without major complications. Partial flap necrosis developed in one case but secondary healing was achieved and the final outcome was not impaired. Most of the cases healed well during the follow-up period. Postoperative complications such as wound dehiscence and fistula developed in some subjects, but all healed well with a secondary treatment. A total of five cases relapsed after surgery due to tissue deficit and these were treated with bursectomy and muscle transposition flap to fill the dead space. We propose that the IGAP flap should be considered a viable alternative to other methods of ischial pressure sore surgery owing to its many advantages, which include the ability to preserve peripheral muscle tissue, the variability of flap designs, relatively good durability, and the low donor site morbidity rate.
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