Structural stability of the rotary door myocutaneous flap.
This canine study examines the structural stability of extensive laryngotracheal reconstruction with the sternohyoid myocutaneous rotary door flap (RDF) and modifications of the RDF with subdermal collagen and collagen hydroxyapatite matrix. The postreconstruction stability of the RDF and these modifications were tested and compared by measuring immediate postmortem airway stability during application of negative intraluminal pressures. Comparisons between controls and experimental specimens demonstrated that the RDF provides structural stability to secure airway patency under physiologic pressures. Biocompatible matrix adds further structural support in maintenance of the reconstructed lumen. This study validates that the RDF provides adequate rigid support for extensive laryngotracheal reconstruction without the requirement of skeletal support.
Papay
F A
FA
Department of Plastic and Reconstructive Surgery, Cleveland Clinic Foundation, Ohio 44195, USA.
Eliachar
I
I
Stein
J M
JM
Sebek
B A
BA
Ramirez
H M
HM
Tucker
H M
HM
D000818:Animals; D001696:Biomechanical Phenomena; D004285:Dogs; D007830:Larynx / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D011182:Postoperative Care; D011312:Pressure; D019651:Plastic Surgery Procedures / Q000379:methods*; D013524:Surgical Flaps / Q000473:pathology; D014132:Trachea / Q000601:surgery*