title: In vivo tissue engineering over wounds with exposed bone and tendon: Autologous dermal grafting and vacuum-assisted closure.
abstract: Flap coverage is ideal for wounds exposing bone and tendon, but technically less demanding and speedier options might be considered for small shallow wounds and for wounds with adjacent tissue loss precluding local flaps. We revisited the use of autologous dermal grafting-in combination with vacuum-assisted closure (VAC)-for such wounds.Five small- to medium-sized wounds exposing bone, joint, and/or tendon were each covered using an autologous meshed dermal graft followed by VAC application to induce granulation. Closure was completed at 2 weeks by split-thickness skin grafting over the granulating dermis graft.Complete and stable wound healing was achieved in all cases within 4 weeks of dermal grafting over exposed bone with excellent outcome at 1 year in terms of donor site healing and return to function. All healed wounds had a nearly flush profile with no bulkiness in the foot and toe region.Autologous dermal grafting with VAC is an integrated in vivo tissue engineering system in which the meshed dermis acts as an attractive scaffold for granulation within the conducive VAC-medium. As an alternative to flap surgery or dermal substitutes, the technique is simple, swift, and cost-effective for immediate closure of small shallow wounds and even multiple small wounds, exposing bone and tendon particularly in the lower legs, feet, and toes.
authors.affiliation: Department of Plastic, Reconstructive, and Aesthetic Surgery, Singapore General Hospital, Singapore.
authors.forename: Gavin Chun-Wui
authors.initials: GC
authors.lastname: Kang
authors.forename: Yong Chen
authors.initials: YC
authors.lastname: Por
authors.forename: Bien Keem
authors.initials: BK
authors.lastname: Tan
mesh_terms: D000328:Adult; D002675:Child, Preschool; D020405:Dermis / Q000637:transplantation; D016267:External Fixators; D005260:Female; D018409:Foot Injuries / Q000601:surgery*; D005597:Fractures, Open / Q000601:surgery; D006801:Humans; D004204:Joint Dislocations / Q000601:surgery; D007869:Leg Injuries / Q000601:surgery*; D008297:Male; D008682:Metatarsal Bones / Q000293:injuries / Q000601:surgery; D054843:Negative-Pressure Wound Therapy; D016038:Skin Transplantation / Q000379:methods*; D017695:Soft Tissue Injuries / Q000601:surgery*; D013978:Tibial Fractures / Q000601:surgery; D023822:Tissue Engineering / Q000379:methods*; D054457:Tissue Scaffolds; D014033:Toe Joint / Q000293:injuries / Q000601:surgery