Krochmal, Daniel J.

Abstract Background Deaths in gluteal autografting occur due to gluteal vein injuries, but data are lacking on the precise location and caliber of these veins. Objectives The authors sought to present the first in vivo study of gluteal vein anatomy utilizing magnetic resonance imaging. Methods Magnetic resonance imaging venography of 16 volunteer hemi-sections was conducted in the supine, prone, prone with a bump (jack-knife), and left and right decubitus positions in 1 session after a single contrast administration. Caliber and course of the superior and inferior gluteal veins (SGV/IGV) were analyzed vs bony landmarks and position changes. Results The SGV has a very short submuscular course before splitting into 2 smaller branches superolaterally. The IGV runs immediately deep to the gluteus maximus in the center of the buttock as a single large trunk, on average 56 mm deep (mean 27 mm of muscle belly and 30 mm subcutaneous fat). No intramuscular or subcutaneous branches greater than 2 mm were found. In the prone position, the IGV and SGV have an average caliber of 5.96 mm and 5.63 mm. Vessel caliber decreased by 21% and 27%, respectively, in the jack-knife position and by 14% and 15% in lateral decubitus. Conclusions The SGV and IGV are immediately deep to gluteus maximus approximately 6 cm deep with a caliber on the order of 6 mm in the prone position. The distribution of these vessels suggests there is no “safe zone” in the intramuscular or submuscular planes. The jackknife or lateral decubitus positions can decrease vein caliber by up to 27%, possibly reducing the risk of injury due to either traction or direct cannula impact.

Successful dialysis access necessitates superficial arteriovenous fistula (AVF) placement to facilitate identification of anatomical landmarks for safe cannulation. Suction-assisted lipectomy (SAL) may be an alternative to traditional surgical AVF revision procedures for placing fistulas more superficially. Three patients with an average body mass index of 45.2 kg/m 2 , with inaccessible AVFs due to obesity, underwent ultrasound-guided SAL of their upper extremities. Successful cannulation was achieved within two weeks. A clinically insignificant hematoma and arm swelling occurred in one patient. SAL provides a safe and effective alternative for salvaging deep AVFs for dialysis access in the upper extremities of obese patients.

The deep inferior epigastric artery perforator flap is an option for women desiring autologous tissue breast reconstruction. If this reconstruction fails, other autologous tissue flaps, including the gluteal artery perforator and latis-simus dorsi flaps, may be used for salvage. The anterolateral thigh (ALT) flap offers adequate tissue volume for breast reconstruction, acceptable fat quality and a long vascular pedicle. Other advantages include obviating the need for intraoperative position changes and harvesting tissue outside of the radiation field. Two cases involving ALT flaps used in the setting of deep inferior epigastric artery perforator failure are presented with favourable results. A review of the anatomy of the ALT flap is included.