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Biomedical subjects

G K Bennett

Publications and source records attributed to G K Bennett.

9 recordsLinked to original sources

Ruben's fat pad for breast reconstruction: a peri-iliac soft-tissue free flap.

We present a single patient with a successful breast reconstruction using the peri-iliac fat pad as a free flap based on the deep circumflex iliac artery and vein. Although the follow-up is short, in this patient the donor site has been acceptable, and we believe that this flap will have a place in the selection of donor sites for autogenous tissue breast reconstruction.

Adipose Tissue↗

Assessment of the abdominal wall after pedicled TRAM flap surgery: 5- to 7-year follow-up of 150 consecutive patients.

To define the long-term abdominal consequences of the TRAM flap procedure, 150 consecutive patients were evaluated 5 to 7.5 years postoperatively. Of 137 surviving patients, 135 (98.5 percent) returned a questionnaire (68 single pedicle, 63 double rectus harvest, and 4 single pedicle with contralateral microvascular augmentation) and 132 (96.4 percent) were examined and tested. By questionnaire, 64 percent noted overall improvement of the abdomen, 72 percent noted improved abdominal appearance, and 20 percent noted improved posture. Decreased abdominal strength was noted by 46 percent, and decreased exercise ability was noted by 25 percent. These figures were higher after double rectus harvest (60 and 35 percent) than after single rectus harvest (35 and 16 percent) (p = 0.005 and p = 0.014, respectively). Activities of daily living were rarely (4.0 to 5.8 percent) affected. Three of the patients had uncomplicated pregnancies and deliveries (two vaginal, one cesarean section). Situp performance was worse comparing postoperative patients with unoperated controls (p < 0.0005) and comparing double rectus harvest with single rectus harvest patients (p < 0.0005). Comparing double rectus harvest patients with direct abdominal closure and those closed with mesh, there was a trend toward poorer situp performance in the mesh subgroup; however, this was not statistically significant. On examination, a classic post-TRAM hernia was not encountered in any patient, but three single-pedicle patients had asymptomatic diffuse bulges through the fascial harvest site, visible only on straining to do a situp. Eight patients (seven bilateral and one single pedicle) had varying degrees of abdominal laxity, but only one had operative correction of diffusely attenuated abdominal fascia following pregnancy and delivery. Examiners' ratings of aesthetic abdominal appearance were higher for postoperative patients than for unoperated controls (p = 0.05). The vast majority of patients considered the TRAM procedure worthwhile (93 percent) and continued to recommend it to others (96 percent).

Abdominal Muscles↗

Abdominal function after pedicled TRAM flap surgery.

Through the years, many surgeons have considered the potential for weakness in the abdominal wall as a major drawback to the use of the pedicled TRAM flap. This article begins with a review of the surgical anatomy of the abdominal wall. It continues with a review of technical details; beginning with a method of partial rectus muscle and fascia harvest that respects the vascular anatomy, and followed by multilayered direct fascial closure in all patients with selective alloplastic mesh reinforcement as necessary. It is the authors' opinion that these methods optimize postoperative abdominal function, leaving a competent abdominal wall that does not deteriorate through time. Supportive data gained through a 13-year experience with 662 patients are presented.

Abdominal Muscles↗

Breast reconstruction following mastectomy: an update.

Breast reconstruction today is a realistic and vital part of total breast cancer treatment. All physicians should be well informed on current methods of reconstruction so that they can present the facts to their patients in an encouraging, yet realistic manner. Recent developments in breast reconstruction after mastectomy have included the increase utilization of immediate breast reconstruction at the time of mastectomy, the improvement and refinement of the TRAM flap, the increased use of the "free" flap transfer of the TRAM flap which increases blood supply to the flap, texturing of implants which appears to increase their stability on the chest wall and reduce the incidence of capsular contracture or firmness, and the introduction of the newer autogenous tissue methods including the LTTF, gluteal, and latissimus dorsi flaps. Plastic surgeons are charged with the task of becoming proficient in breast reconstruction procedures in order to offer the mastectomy patient a safe, realistic facsimile breast that will be trouble free. Fortunately, there are several good options for restoring the breast after mastectomy. The method of reconstruction should be chosen by matching the desires of informed patients with the indications and contraindications in each case. In general, silicone reconstruction is expedient and satisfactory in most patients. However, it cannot compete with autogenous tissue transfer for severe chest wall defects, covering irradiated areas, creating a large, ptotic breast, or providing a natural appearing, soft breast mount.

Breast Neoplasms↗

TRAM flap safety optimized with intraoperative Doppler.

Anatomic studies have clearly documented the variable position of the deep superior epigastric vessels in the rectus abdominis muscle. In our opinion, only that part of the rectus abdominis muscle containing the vascular pedicle should be transposed with the TRAM flap. The Doppler probe provides a simple method of identifying the dominant intramuscular vascular axis. It consistently alerts the surgeon to any unusual position of a vessel at the costal margin or within the rectus abdominis muscle. This knowledge enables a conservative yet safe dissection of the vascular pedicle, rectus abdominis muscle, and its sheath. This in turn will enable a competent abdominal closure. The Doppler technique is safe, simple, quick, noninvasive, familiar to most surgeons, and applicable to all patients.

Abdominal Muscles↗

Autogenous tissue reconstruction in the mastectomy patient. A critical review of 300 patients.

The transverse abdominal island flap operation was the method of breast reconstruction after mastectomy and in chest wall reconstruction in 300 patients from September 1980 to July 1986. In 58% (221 of 383 breast reconstructions), the breast mound was formed in a single operation and required no further revision. Only 18 reconstructed breasts required modification after 1 year. Symmetry was achieved without altering the opposite breast in 113 (52% of the 217 unilateral reconstructions). Complications included one total flap loss (0.3%) and 18 partial flap losses (6%). There was one lower abdominal hernia (0.3%) and two small defects in the upper anterior rectus sheath (0.8%). Lower abdominal wall laxity occurred in two patients (0.8%), one requiring repair. As expected, there was some loss of abdominal wall strength after reconstruction but this did not affect sports or work performance in over 90% of patients. Ninety-eight per cent of respondents (272 or 278) judged the operation worth their time and effort. This major operative procedure is indicated only in healthy patients.

Abdominal Muscles↗