ABSTRACT
BACKGROUND: We report our findings from an anatomical study on harvest of a vascularized scapular bone graft from a supine position. A clinical case is presented to illustrate the operative approach. METHODS: Twenty cadaveric hemibody specimens were dissected in the supine position. Outcomes of interest included the characterization of anatomical variants and measurements of pedicle length. Specific measurements included distance from the origin of the subscapular artery (at the axillary artery) to the branch point of the angular artery from the thoracodorsal artery or serratus branch and the length of the angular branch proper. RESULTS: There are five reported anatomic variations regarding the origin of the angular branch of the thoracodorsal artery. In our cadaveric cohort only four known types were seen, and an entirely new variant was encountered. Six cadaveric dissections exhibited a type 3 configuration, six were type 1, four were type 2, three were type 4, and one was a previously unreported variant we termed a type 6, with multiple angular artery branches originating from the posterior branch of the thoracodorsal. The mean distance between the origin of the subscapular artery and the takeoff of the angular branch was 6.3 ± 2.0 cm. The mean length of the angular branch was 3.7 ± 1.4 cm. CONCLUSIONS: Supine positioning for harvest of a vascularized bone graft obviates the need for an intraoperative position change and allows reconstruction of bone defects in the hand and upper extremity within a single surgical field.
Subject(s)
Bone Transplantation , Scapula , Arteries , Axillary Artery , Humans , Scapula/surgeryABSTRACT
BACKGROUND: The free anterior branch split latissimus dorsi flap has a reliable anatomy and advantages over the traditional latissimus dorsi flap. By preserving the posterior branch of the thoracodorsal nerve, morbidity at the donor site is reduced, preserving shoulder strength. METHODOLOGY: The purpose of this article is to review our experience with the split latissimus flap, describe our surgical technique, and finally review representative cases of reconstruction in different anatomical regions. RESULTS: From April 2017 to October 2020, 39 free split latissimus flaps were performed at a single center. Flaps were performed for coverage in the upper extremity (n = 2), lower extremity (n = 32), and head and neck (n = 5). Flap success rate was 97.4%. Mean dimensions of the flap were 17.0 × 8.3 cm, with a mean area of 145 cm2. CONCLUSIONS: The flap has a broad application and can be utilized in many different reconstructive scenarios including for coverage of defects in the extremities, trunk, and head and neck.
