ABSTRACT
BACKGROUND: Most defects resulting from noma involve the lateral and anterolateral aspects of the face and are often combined with severe functional deficits. A subgroup, commonly called "central noma," is composed of defects of the upper lip, maxillary soft tissues, premaxilla, nasal cartilaginous infrastructure, and soft tissues. In contrast to unilateral involvement of the face, central noma does not affect opening of the jaw; however, it results in severe mutilation, with disfiguring three-dimensional defects erasing any individual traits from a face. The common surgical approach to centrofacial noma defects has been single-stage reconstructive procedures using locoregional flaps, but this approach often leads to disappointing outcomes in complex cases. METHODS: The authors' concept for complex central noma defects is a staged approach using free flaps for soft-tissue reconstruction of the upper lip and maxillary vicinity. This approach serves as a versatile base for introducing locoregional flaps for later functional and aesthetic refinements. A secondary procedure includes total nose reconstruction with a free cartilage framework and forehead flaps. RESULTS: In this series (n = 53), free radial forearm (n = 4), anterolateral thigh (n = 1), and parascapular (n = 7) flaps proved suitable for the central face in terms of pedicle length, tissue pliability, and bulk. All free flaps survived completely. Three total nose reconstructions by forehead flaps were performed successfully as a secondary step. CONCLUSION: Being of limited use for subtotal or total reconstruction of the outer nose, microvascular tissue transfer preserves local and regional donor sites--particularly the forehead--for secondary reconstruction.
Subject(s)
Face/surgery , Noma/surgery , Plastic Surgery Procedures/methods , Surgical Flaps , Adolescent , Adult , Child , Child, Preschool , Cohort Studies , Developing Countries , Esthetics , Face/physiopathology , Female , Follow-Up Studies , Graft Rejection , Graft Survival , Humans , Lip/surgery , Male , Maxilla/surgery , Middle Aged , Noma/diagnosis , Nose/surgery , Retrospective Studies , Risk Assessment , Severity of Illness Index , South Africa , Wound Healing/physiologyABSTRACT
Noma is primarily affecting children in underprivileged countries and results in disfiguring facial defects, loss of mandibular movement, and subsequent social disintegration. Plastic surgery in West Africa traditionally uses pedicled flaps. In large, complex, or central facial defects, though, pedicled flaps are apt to be too small or have a significant donor site morbidity. Since 1999, we have been using free microvascular flaps in Nigeria. In 5 Interplast missions, 31 patients (age 5-45 years, median 20 years, female to male ratio 18:13) underwent 31 free flap procedures in Nigeria, 27 of them for primary treatment. The operative time ranged from 3.75-8.75 hours (mean 5.5 hours). An external distractor/fixator to maintain mouth opening was mounted in 13 cases. All anastomoses were done with loupe magnification. Three flaps failed completely, 1 partly, and 4 patients showed minor wound infections. No donor-site complications occurred. Free flaps can be a suitable and safe closure for complex noma defects even in underprivileged circumstances, if patient profile and own microsurgical routine allows it. Patient disfigurement can be less than in pedicled flaps regarding the donor sites.
Subject(s)
Microsurgery/methods , Noma/surgery , Adolescent , Adult , Child , Child, Preschool , Female , Humans , Male , Middle Aged , Postoperative Complications , Reoperation , Surgical Flaps , Trismus/surgeryABSTRACT
Noma (cancrum oris, stomatitis gangrenosa) is a quickly spreading orofacial gangrene in children, caused by a combination of malnutrition, debilitation because of concomitant diseases (measles) and intraoral infections. The global incidence of noma in the world is uncertain. By comparing large numbers of noma patients and cleft lip patients in a large referral hospital for these disorders in Sokoto, Nigeria, we calculated the incidence of noma in north-west Nigeria as 6.4 per 1000 children. Extrapolation of this incidence to the developing countries bordering the Sahara Desert (the noma belt of the world) gives an incidence of 25,600 for that region and a global incidence of 30,000-40,000. Noma is a good biological parameter of extreme poverty, and hence a global monitoring system for noma can be justified. Though economic progress is the most effective preventive measure against noma, medical prevention by vaccination programmes against measles should be enhanced as well.
