Faculty Bibliography

BACKGROUND: Women with breast cancer are increasingly choosing to undergo contralateral prophylactic mastectomy (CPM) despite questionable survival benefit and limited data on added risks. Little is known about differences in perioperative complications between women who undergo bilateral mastectomy (BM) versus unilateral mastectomy (UM) with reconstruction. METHODS: The American College of Surgeons National Surgery Quality Improvement Program Participant Use Files (2005-2013) were used to identify women with unilateral breast cancer who underwent UM or BM with reconstruction. Adjusted 30-day complications were compared between UM and BM groups using logistic regression models. RESULTS: A total of 20,501 patients were identified, of whom 35.3 % underwent BM. Of these, 84.3 % had implant reconstruction and 15.7 % had autologous reconstruction. For all women, BM was associated with longer hospital stays (adjusted odds ratio [aOR] 1.98-2.09, p < 0.001) and a higher transfusion rate than UM (aOR 2.52-3.06, p < 0.001). BM with implant reconstruction was associated with a modestly increased reoperation rate (aOR 1.15, p = 0.029). BM with autologous reconstruction was associated with a higher wound disruption rate (aOR 2.51, p = 0.015). Surgical site infections, prosthesis failure, and medical complications occurred at similar rates in UM and BM groups. CONCLUSIONS: CPM is associated with significant increases in some, but not all, surgical site complications. CPM does not increase the likelihood of medical complications, which are generally infrequent.

BACKGROUND: Use of the tumescent mastectomy technique has been reported to facilitate development of a hydrodissection plane, reduce blood loss, and provide adjunct analgesia. Previous studies suggest that tumescent dissection may contribute to adverse outcomes after immediate implant reconstruction; however, its effect on autologous microsurgical reconstruction has not been established. METHODS: A retrospective review was conducted of all immediate microsurgical breast reconstruction procedures at a single academic center between January 2004 and December 2013. Records were queried for age, body mass index, mastectomy weight, diabetes, hypertension, smoking, preoperative radiation, reconstruction flap type, and autologous flap weight. Outcomes of interest were mastectomy skin necrosis, complete and partial flap loss, return to the operating room, breast hematoma, seroma, and infection. RESULTS: There were 730 immediate autologous breast reconstructions performed during the study period; 46% with the tumescent dissection technique. Groups were similar with respect to baseline patient and procedural characteristics. Univariate analysis revealed no significant difference in the incidence of mastectomy skin necrosis, complete or partial flap loss, return to the operating room, operative time, estimated blood loss, recurrence, breast hematoma, seroma, or infection in patients undergoing tumescent mastectomy. Multivariate analysis also demonstrated no significant association between the use of tumescent technique and postoperative breast mastectomy skin necrosis (P = 0.980), hematoma (P = 0.759), or seroma (P = 0.340). CONCLUSIONS: Use of the tumescent dissection technique during mastectomy is not significantly associated with adverse outcomes after microsurgical breast reconstruction. Despite concern for its impact on implant reconstruction, our findings suggest that this method can be used safely preceding autologous procedures.

OBJECTIVE: The treatment of head and neck cancer has varying impact on postoperative recovery and return of swallowing function. The authors aim to establish screening tools to assist in preoperatively determining the need for gastrostomy tube placement. METHODS: The authors prospectively assessed all patients undergoing complex head and neck reconstructive surgery during a 1-year study period. Only patients tolerating an oral diet, without preoperative gastrostomies, were enrolled for study. Eight parameters were assessed including: body mass index (BMI), prealbumin, albumin, smoking history, comorbidities [including coronary artery disease (CAD), chronic obstructive pulmonary disease (COPD), and diabetes mellitus (DM)], age, use of microvascular reconstruction, and type of defect. Two specific screening tools were assessed. In the first, a multivariate logistic regression model was employed to determine factor(s) that predict postoperative gastrostomy tube. In a second screening tool, the 8 parameters were scored between 0 to 1 points. The total score obtained for each patient was correlated with postoperative gastrostomy placement. RESULTS: Out of the 60 study patients enrolled in the study, 24 patients (40%) received a postoperative gastrostomy. In the logistic regression model, albumin level was the only factor that was significantly associated with need for postoperative gastrostomy (P < 0.0023). A score of 4 or greater was determined to have a sensitivity of 83% and specificity of 61% for postoperative gastrostomy. CONCLUSIONS: Patients with a score of 4 or more with this screening scoring system or those patients with an albumin level <3.5 g/dL were at high risk for postoperative feeding tube placement.

Abstract The aim of this study was to evaluate the physico-chemical properties and the in vivo host response of a surface sandblasted with particles of titanium oxide (TiO2) followed by acid etching as an alternative to aluminium oxide. Thirty titanium disks manufactured in the same conditions as the implants and 24 conventional cylindrical implants were used., Half of the implants had a machined surface (Gcon) while in the other half the surface was treated by with particles of TiO2 followed by acid etching (Gexp). Surface characterization was assessed by Scanning Electron Microscope (SEM), Energy Dispersive X-ray Spectrometry (EDS), profilometry, and wettability. For the in vivo test, 12 implants of each group were implanted in the tibia of 6 rabbits, and were reverse torque tested after periods of 30 or 60 days after implantation. Following torque, SEM was utilized to assess residual bone-implant contact. The surface characterization by SEM showed a very homogeneous surface with uniform irregularities for Gexp and a small amount of residues of the blasting procedure, while Gcon presented a surface with minimal irregularities from the machining tools. Wettability test showed decreased contact angle for the Gcon relative to the Gexp. The Gexp removal torque at 30 and 60 days was 28.7%, and 33.2% higher relative to the Gcon, respectively. Blasting the surface with particles of TiO2 represents an adequate option for the surface treatment of dental implants, with minimal risk of contamination by the residual debris from the blasting procedure.

Microvascular reconstruction offers patients with facial deformities excellent composite tissue restoration and improves functional outcomes. However, such techniques require facial skin incisions, leaving the patient with unsightly scarring. Implementing an intraoral microvascular anastomosis can obviate the need for facial skin incisions, yielding aesthetically favorable results. We present the case of a 29-year-old, cosmetically conscientious woman who underwent a free iliac osteomuscular flap with intraoral microvascular anastomosis for reconstruction of a right maxillary defect secondary to fibrous dysplasia. Endosseous dental implants were successfully placed using computer-aided design and manufacturing to effectively restore the dentition. Intraoral microvascular reconstruction provided the patient with an aesthetically pleasing result, effectively achieving functional restoration with patient satisfaction.

BACKGROUND: The use of autologous adipose tissue harvested through liposuction techniques for soft-tissue augmentation has become commonplace among cosmetic and reconstructive surgeons alike. Despite its longstanding use in the plastic surgery community, substantial controversy remains regarding the optimal method of processing harvested lipoaspirate before grafting. This evidence-based review builds on prior examinations of the literature to evaluate both established and novel methods for lipoaspirate processing. METHODS: A comprehensive, systematic review of the literature was conducted using Ovid MEDLINE in January of 2015 to identify all relevant publications subsequent to the most recent review on this topic. Randomized controlled trials, clinical trials, and comparative studies comparing at least two of the following techniques were included: decanting, cotton gauze (Telfa) rolling, centrifugation, washing, filtration, and stromal vascular fraction isolation. RESULTS: Nine articles comparing various methods of processing human fat for autologous grafting were selected based on inclusion and exclusion criteria. Five compared established processing techniques (i.e., decanting, cotton gauze rolling, centrifugation, and washing) and four publications evaluated newer proprietary technologies, including washing, filtration, and/or methods to isolate stromal vascular fraction. CONCLUSIONS: The authors failed to find compelling evidence to advocate a single technique as the superior method for processing lipoaspirate in preparation for autologous fat grafting. A paucity of high-quality data continues to limit the clinician's ability to determine the optimal method for purifying harvested adipose tissue. Novel automated technologies hold promise, particularly for large-volume fat grafting; however, extensive additional research is required to understand their true utility and efficiency in clinical settings.