Roger W. Smith

Preoperative planning for DIEP breast reconstruction: early experience of the use of computerised tomography angiography with VoNavix 3D software for perforator navigation

The deep inferior epigastric perforator (DIEP) flap is normally the first choice in breast reconstruction; however, due to the considerable vascular anatomical variation and the learning curve for the procedure, muscle-sparing transverse rectus abdominis musculocutaneous (TRAM) flaps are still frequently performed to reduce the rate of complications. Accurate preoperative investigation of the perforators would allow better operative preparation and possibly shorten the learning curve. In an effort to increase accuracy of preoperative planning and to aid preoperative decision-making in free abdominal flap breast reconstruction, we have acquired the use of VoNavix, software that creates three dimensional images from computerised tomography angiography (CTA) data. The use of the VoNavix software for analysis of CTA provides superior imaging that can be viewed in theatre. It, together with CTA, enables decisions to be made preoperatively, including: which side to raise the flap; whether to aim for a medial or lateral row perforator; whether to take a segment of muscle and whether to expect an easy or difficult dissection. We have now performed over 60 free abdominal flap breast reconstructions aided with CTA, and 10 of these cases also used VoNavix technology. This paper presents our initial experience with the use of this software, illustrated with three patient examples. The advantages and disadvantages are discussed.

A cohort study of acute plastic surgery trauma and burn referrals using telemedicine

A store-and-forward telemedicine system was used to supplement normal telephone referrals to the plastic surgery unit at the Queen Victoria Hospital (QVH). During a 12-week prospective study, 11 units (8 hospitals and 3 minor injury units) with the telemedicine system and 10 units (8 hospitals and 2 minor injury units) without it regularly made referrals (at least 10) to the QVH. There were 389 referrals from the telemedicine-equipped units and 607 telephone referrals from the non-telemedicine units. The telemedicine system was used for 246 of the 389 referrals (63%) made from telemedicine-equipped units. There was a significant difference in the management of patients when the telemedicine system was available, with more patients booked directly into day surgery and fewer attending for assessment. The burns unit and the day surgery unit demonstrated a significantly improved accuracy of triage. Telemedicine could have a valuable role to play in the triage and planning of acute plastic surgery referrals.

Paramuscular and Paraneural Perforators in DIEAP Flaps: Radiographic Findings and Clinical Application

The computed tomography microangiography revolutionized the planning of abdominal flaps, and enabled us to identify perforators from the deep inferior epigastric system with a medial extramuscular or minimal medial intramuscular trajectory. We define these perforators as paramuscular and paraneural, since their main course is retromuscular and they emerge medial to the medial border of rectus muscle or medial to its motor nerve supply, respectively. Studying the different perforator distributions in the abdomen of 58 patients who underwent breast reconstruction with deep inferior epigastric artery perforator flap, we have recorded that 46.4% of the abdominal walls have a dominant paramuscular/paraneural perforator (25.8% paramuscular and 20.6% paraneural) with an average diameter 1.56 ± 0.2 mm. Although, the comparison of the rectus muscle morbidity following deep inferior epigastric artery perforator flap dissection based on paramuscular/paraneural and based on other perforator patterns, did not reveal significant differences, paraneural/paramuscular type perforators are not related anatomically to the motor nerves, and the donor site morbidity should be negligible in any operators hands.

Shaping the breast in secondary microsurgical breast reconstruction: single- vs. two-esthetic unit reconstruction.

The esthetic outcome is dictated essentially not only by the position, size, and shape of the reconstructed breast, but also by the extra scaring involved. In the present study, we conducted a visual analog scale survey to compare the esthetic outcome in delayed autologous breast reconstruction following two different abdominal flaps inset. Twenty‐five patients had their reconstruction using the Single‐esthetic Unit principle and were compared with 25 patients that their breast was reconstructed using the Two‐Esthetic Unit principle. Photographic images were formulated to a PowerPoint presentation and cosmetic outcomes were assessed from 30 physicians, by means of a Questionnaire and a visual analog scale. Our data showed that the single‐esthetic unit breast reconstruction presents significant advantages over the traditional two‐esthetic units, due to inconspicuous flap reconstruction, better position of the inframammary fold, and more natural transition from native and reconstructed tissues. Moreover, patient self‐evaluation of esthetic outcome and quality of life showed that single‐esthetic unit reconstruction is associated with higher patient satisfaction, therefore should be considered the method of choice.

Free tissue breast reconstruction in older patients

We present the case of a 72-year-old woman who underwent mastectomy with immediate breast reconstruction using a free transverse rectus abdominis myocutaneous (TRAM) flap, to illustrate that age is not necessarily a barrier to microvascular reconstructive techniques for breast reconstruction.

The Functional Recovery of Revascularised Colon and Jejunum Replacing the Cervical Oesophagus

An experimental animal model was set up to study the comparative behaviour of revascularised transplants of colon and jejunum used to reconstruct the cervical oesophagus. Age, sex and size matched greyhound dogs were used in the study. An investigation of the physiological behaviour of the graft mucosa was carried out at 8 weeks using the mucosal specific activity of the enzyme Na+K+ATPase. The findings demonstrate a clear depression in the functional behaviour of the jejunal graft mucosa, while the colonic graft mucosa remained biochemically unchanged. The significance of these findings is discussed, and the conclusion drawn that they support the hypothesis that colon makes a more stable and functionally superior free graft than jejunum when replacement of the cervical oesophagus is required.