Vastus lateralis free flap for soft tissue coverage of a lower extremity diabetic ulcer.
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Amputation, Surgical↗
Biomedical subjects
Stephen J Vega
Publications and source records attributed to Stephen J Vega.
Age-dependent closure of bony defects after frontal orbital advancement.
BACKGROUND: The ability of the immature skull to spontaneously heal large bony defects created after craniofacial procedures was examined over a 25-year period of craniofacial surgery at the Children's Hospital of Philadelphia. METHODS: Only patients who underwent frontal orbital advancement and reconstruction, had at least 1 year of documented follow-up, and had the presence or absence of a bony defect documented on clinical examination were included. The sex, age at operation, diagnosis, history of a prior craniectomy, and presence or absence of a postoperative infection were determined for each patient. A variety of statistics were applied to the data. RESULTS: Eighty-one patients met the inclusion criteria. A statistically significant association between age at operation and closure of bony defect was demonstrated. Children who closed a bony defect after frontal orbital advancement and reconstruction were significantly younger than those children who had a persistent bony defect. Iterative regression analyses demonstrated that a transition point between closure and the inability to close bony defects occurred between 9 and 11 months of age. Closure of bony defects was not statistically associated with sex, prior craniectomy, an FGFR mutation, or a postoperative infection in the regression analysis. CONCLUSIONS: Healing of bony defects after frontal orbital advancement and reconstruction is significantly related to age at initial operation, with a mean age for closure of less than 12 months. Between 9 and 11 months of age, a change occurs that results in an increasingly lower probability of bony defect closure; thus, all other considerations being equal, initial frontal orbital advancement and reconstruction would ideally take place before this occurs.
Age Factors↗
Free tissue transfer: comparison of outcomes between university hospitals and community hospitals.
BACKGROUND: In university hospitals, free tissue transfer has become a standard method of reconstruction for a broad spectrum of defects. Because of its complexity, free tissue transfer has not been routinely performed in a community hospital setting. This study reports the outcomes of two equal groups of free tissue transfer performed by the same surgeons, comparing the university versus the community hospital setting. METHODS: A total of 735 free tissue transfers were performed at one university hospital and six community hospitals in our region over a 10-year study period. Outcome parameters used in this study included wound complications such as infection, dehiscence, delayed healing, hematoma, and fat necrosis. RESULTS: A total of 674 operations were performed using 735 free tissue transfers: 386 free tissue transfers were performed at the university hospital (53 percent) and 349 (47 percent) were performed at the community hospital. Categories of free tissue transfer reconstruction included breast, lower extremity, head and neck, and upper extremity reconstructions. Most of the breast reconstructions were performed in the community hospital, whereas most of the lower extremity and head and neck reconstructions were performed at the university hospital. Fifty-one major postoperative complications occurred in the university hospital (14 percent), while 31 (10 percent) occurred in the community hospital. Complication rates did not differ significantly between settings; however, there was a trend toward more wound infections in the university hospital and more cases of fat necrosis in the community hospital, most likely reflected in the differing case mix between hospital settings. CONCLUSION: Free tissue transfer is an effective and practical method of reconstruction that has been safely performed in both university and community hospital settings.
Academic Medical Centers↗
Improving outcomes in bilateral breast reconstruction using autogenous tissue.
Bilateral breast reconstruction utilizing autologous free tissue transfer is a complex procedure with multiple options for donor tissue available. This study set out to compare the outcomes of patients undergoing bilateral breast reconstruction with muscle-sparing free TRAM flaps versus those undergoing bilateral reconstructions utilizing procedures which aim to minimize abdominal donor site morbidity in the form of deep inferior epigastric perforator (DIEP) or superficial inferior epigastric (SIEA) flaps. A retrospective review identified 31 patients and 62 free flaps for bilateral autologous breast reconstruction at our teaching institutions in Rochester, NY. Patients receiving procedures which aimed to minimize donor-site morbidity experienced a shorter length of hospital stay versus those patients undergoing bilateral free TRAM procedures (P = 0.0494 by t test and P = 0.0389 by parametric test). There was no significant difference in complication rates between these 2 groups. Other demographic and premorbid factors showed no difference between groups. Here, we demonstrate that bilateral autologous breast reconstruction with flaps which minimize donor site morbidity are a safe and effective option for bilateral reconstruction. Furthermore, patients who received bilateral breast reconstruction with abdominal wall sparing techniques (DIEP or SIEA flaps) had a significantly shorter length of hospital stay, with no significant difference in complication rates when compared with patients undergoing bilateral free TRAM procedures.
Adult↗
Risk factors and complications in free TRAM flap breast reconstruction.
METHODS: The authors retrospectively reviewed 500 free TRAM flaps performed between 1992 and 2003. This cohort was subdivided based on smoking history, obesity, preoperative chemotherapy, preoperative radiation therapy, peripheral vascular disease, chronic obstructive pulmonary disease (COPD), and hypertension, and compared surgical complication rates. Measured complications included fat necrosis, mastectomy flap necrosis, abdominal flap necrosis, partial TRAM flap loss, wound infection, hematoma, seroma, vessel thrombosis, and abdominal hernia. Chi2 analysis and Fisher exact test were performed to determine differences between groups, and linear regression models were used to predict the risk factors of surgical complications. RESULTS: Smokers were more likely to have a higher incidence of wound infection (P = 0.01), mastectomy flap necrosis (P = 0.015), abdominal flap necrosis (P = 0.033), and fat necrosis (P = 0.01). Obese patients were more likely to have higher rates of mastectomy flap necrosis (P = 0.01) and hematoma (P = 0.01). Patients with peripheral vascular disease were more likely to have a higher incidence of wound infection (P = 0.031), and patients with preoperative radiation therapy were more likely to have a higher incidence of seroma (P = 0.043). Logistic regression showed that smoking was found to be a risk factor for fat necrosis (P = 0.006), wound infection (P = 0.002), mastectomy flap necrosis (P = 0.039), and abdominal flap necrosis (P = 0.042). Obesity was a risk factor for mastectomy flap necrosis (P = 0.002). Peripheral vascular disease was a risk factor for wound infection (P = 0.032). CONCLUSION: Awareness of risk factors and associated complications will lead to modification and individualization of surgical techniques in an attempt to limit these complications and continually improve outcomes.
Breast↗