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Dive into the research topics where Daniel R. Butz is active.

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Featured researches published by Daniel R. Butz.


Plastic and Reconstructive Surgery | 2015

Advanced age is a predictor of 30-day complications after autologous but not implant-based postmastectomy breast reconstruction

Daniel R. Butz; Brittany Lapin; Katharine Yao; David H. Song; Donald Johnson; Mark Sisco

Background: Older breast cancer patients undergo postmastectomy breast reconstruction infrequently, in part because of a perception of increased surgical risk. This study sought to investigate the effects of age on perioperative complications after postmastectomy breast reconstruction. Methods: The American College of Surgeons National Surgery Quality Improvement Program Participant Use Files from 2005 to 2012 were used to identify women with breast cancer who underwent unilateral mastectomy alone or with immediate reconstruction. Thirty-day complication rates were compared between younger (<65 years) and older (≥65 years) women after implant-based reconstruction, autologous reconstruction, or mastectomy alone. Linear and logistic regression models were used to control for differences in comorbidities and age. Results: A total of 40,769 patients were studied, of whom 15,093 (37 percent) were aged 65 years or older. Breast reconstruction was performed in 39.5 percent of younger and 10.7 percent of older women. The attributable risks of breast reconstruction, manifested by longer hospital stays (p < 0.001), more frequent complications (p < 0.001), and more reoperations (p < 0.001), were similar in older and younger women. There were no differences in the adjusted complication rates between older and younger patients undergoing implant-based reconstruction. However, older women undergoing autologous reconstruction were more likely to suffer venous thromboembolism (OR, 3.67; p = 0.02). Conclusions: The perioperative risks attributable to breast reconstruction are similar in older and younger women. Older patients should be counseled that their age does not confer an increased risk of complications after implant-based breast reconstruction. However, age is an independent risk factor for venous thromboembolism after autologous reconstruction. Special attention should be paid to venous thromboembolism prophylaxis in this group. CLINICAL QUESTION/LEVEL OF EVIDENCE: Risk, II.


Plastic and reconstructive surgery. Global open | 2015

Postoperative Pain and Length of Stay Lowered by Use of Exparel in Immediate, Implant-Based Breast Reconstruction.

Daniel R. Butz; Deana Shenaq; Veronica Rundell; Brittany Kepler; Eric Liederbach; Jeff Thiel; Catherine Pesce; Glenn S. Murphy; Mark Sisco; Michael A. Howard

Background: Patients undergoing mastectomy and prosthetic breast reconstruction have significant acute postsurgical pain, routinely mandating inpatient hospitalization. Liposomal bupivacaine (LB) (Exparel; Pacira Pharmaceuticals, Inc., Parsippany, N.J.) has been shown to be a safe and effective pain reliever in the immediate postoperative period and may be advantageous for use in mastectomy and breast reconstruction patients. Methods: Retrospective review of 90 immediate implant-based breast reconstruction patient charts was completed. Patients were separated into 3 groups of 30 consecutively treated patients who received 1 of 3 pain treatment modalities: intravenous/oral narcotic pain control (control), bupivacaine pain pump, or LB injection. Length of hospital stay, patient-reported Visual Analog Scale (VAS) pain scores, postoperative patient-controlled analgesia usage, and nausea-related medication use were abstracted and subjected to analysis of variance and multiple linear-regression analysis, as appropriate. Results: Subjects were well-matched for age (P = 0.24) regardless of pain-control modality. Roughly half (53%) of control and pain pump–treated subjects had bilateral procedures, as opposed to 80% of LB subjects. Mean length of stay for LB subjects was significantly less than control (1.5 days vs 2.00 days; P = 0.016). LB subjects reported significantly lower VAS pain scores at 4, 8, 12, 16, and 24 hours compared with pain pump and control (P < 0.01). There were no adverse events in the LB group. Conclusion: Use of LB in this group of immediate breast reconstruction patients was associated with decreased patient VAS pain scores in the immediate postoperative period compared with bupivacaine pain pump and intravenous/oral narcotic pain management and reduced inpatient length of stay.


Journal of Hand Surgery (European Volume) | 2014

Application of 3-Dimensional Printing in Hand Surgery for Production of a Novel Bone Reduction Clamp

Sam M. Fuller; Daniel R. Butz; Curt B. Vevang; Mansour V. Makhlouf

Three-dimensional printing is being rapidly incorporated in the medical field to produce external prosthetics for improved cosmesis and fabricated molds to aid in presurgical planning. Biomedically engineered products from 3-dimensional printers are also utilized as implantable devices for knee arthroplasty, airway orthoses, and other surgical procedures. Although at first expensive and conceptually difficult to construct, 3-dimensional printing is now becoming more affordable and widely accessible. In hand surgery, like many other specialties, new or customized instruments would be desirable; however, the overall production cost restricts their development. We are presenting our step-by-step experience in creating a bone reduction clamp for finger fractures using 3-dimensional printing technology. Using free, downloadable software, a 3-dimensional model of a bone reduction clamp for hand fractures was created based on the senior authors (M.V.M.) specific design, previous experience, and preferences for fracture fixation. Once deemed satisfactory, the computer files were sent to a 3-dimensional printing company for the production of the prototypes. Multiple plastic prototypes were made and adjusted, affording a fast, low-cost working model of the proposed clamp. Once a workable design was obtained, a printing company produced the surgical clamp prototype directly from the 3-dimensional model represented in the computer files. This prototype was used in the operating room, meeting the expectations of the surgeon. Three-dimensional printing is affordable and offers the benefits of reducing production time and nurturing innovations in hand surgery. This article presents a step-by-step description of our design process using online software programs and 3-dimensional printing services. As medical technology advances, it is important that hand surgeons remain aware of available resources, are knowledgeable about how the process works, and are able to take advantage of opportunities in order to advance the field.


Plastic and Reconstructive Surgery | 2015

C-Y Trilobed Flap for Improved Nipple-Areola Complex Reconstruction.

Daniel R. Butz; Eun Key Kim; David H. Song

Summary: Nipple-areola complex reconstruction has been shown to improve breast reconstruction patients’ overall satisfaction. Trilobed flap variations are some of the more commonly used flaps for nipple-areola complex reconstruction. The donor-site scar frequently extends outside the width of an ideal areolar tattoo diameter. There have been many modifications to the original flap design, but none of them addresses the length of the donor-site scar. The technique described uses a triangular stitch in the donor site to limit the length of the scar. This also creates tiny dog-ears within the future areola zone that give a natural wrinkled appearance when tattooed.


Journal of Burn Care & Research | 2015

Is palmar surface area a reliable tool to estimate burn surface areas in obese patients

Daniel R. Butz; Zach Collier; Annemarie O’Connor; Megan Magdziak; Lawrence J. Gottlieb

Estimating TBSA burned is critical to the initial management and fluid resuscitation of patients who have sustained burn injuries. TBSA of scattered burn injuries are frequently estimated using the patient’s percentage palmar surface area (%PSA), which is taught as being 1% of the TBSA. This study investigates the relationship of %PSA to TBSA as the body mass index (BMI) increases. Age, sex, race, weight, height, and PSA was collected from obese and nonobese volunteers. TBSA was calculated using the Mosteller, DuBois-DuBois, Livingston and Scott, and Yu formulas. The %PSA relative to TBSA was calculated in obese and nonobese volunteers. Data from 100 subjects were collected. Fifty subjects had a BMI >30 and 50 had a BMI <30. The average age was 41 years (22–77 years old). There were 68 women and 32 men. The %PSA ranged from 0.49% of TBSA with a BMI of 58.7 to 1.15% of TBSA with a BMI of 22.6. This correlation of %PSA to BMI was statistically significant with all of the formulas. We should not assume that the %PSA is always 1% of TBSA, especially in obese patients.


American Journal of Surgery | 2017

Parental leave policies in graduate medical education: A systematic review

Laura S. Humphries; Sarah M. Lyon; Rebecca M. Garza; Daniel R. Butz; Benjamin T. Lemelman; Julie E. Park

BACKGROUND A thorough understanding of attitudes toward and program policies for parenthood in graduate medical education (GME) is essential for establishing fair and achievable parental leave policies and fostering a culture of support for trainees during GME. METHODS A systematic review of the literature was completed. Non-cohort studies, studies completed or published outside of the United States, and studies not published in English were excluded. Studies that addressed the existence of parental leave policies in GME were identified and were the focus of this study. RESULTS Twenty-eight studies addressed the topic of the existence of formal parental leave policies in GME, which was found to vary across time and ranged between 22 and 90%. Support for such policies persisted across time. CONCLUSIONS Attention to formal leave policies in GME has traditionally been lacking, but may be increasing. Negative attitudes towards parenthood in GME persist. Active awareness of the challenges faced by parent-trainees combined with formal parental leave policy implementation is important in supporting parenthood in GME.


Journal of Plastic Reconstructive and Aesthetic Surgery | 2014

A ten-year review of myelodysplastic defect management and use of a novel closure technique with V-Y crescentic rotation advancement flaps *

Daniel R. Butz; Iris A. Seitz; David M. Frim; Russell R. Reid; Lawrence J. Gottlieb

The reconstructive goals for myelodysplastic defects are to provide a multilayered, tension-free and well-vascularized closure to prevent cerebrospinal fluid leakage, wound infection or breakdown and to optimize neurologic outcomes. We reviewed our ten-year experience with myelodysplastic defects and our preferred technique for large defects utilizing paraspinous flaps followed by V-Y crescentic rotation advancement flaps. A retrospective chart review was performed on all myelodysplastic defects closed at the University of Chicago Medicine from 2002 to 2012. Twenty-three patients were treated: eight were closed using V-Y crescentic rotation advancement flaps, eight primarily, two with transposition flaps and five with bilateral latissimus dorsi and gluteus maximus myocutaneous flaps. Patient defect characteristics, reconstructive details, follow up time, and wound complications were analyzed. The primary closure group included eight patients. There was one minor complication and two major complications that required debridement and plastic surgery consultation in this group. The transposition group included two patients and had no wound healing issues. The latissimus and gluteus myocutaneous group included five patients and had one minor wound healing issues. The V-Y crescentic group included eight patients. There were four minor wound breakdowns in the lateral donor sites and one major wound complication involving a CSF leak, meningitis and wound breakdown that required debridement. The groups were stratified by size, <5 cm and >5 cm, and further analyzed. Bilateral V-Y crescentic rotation advancement flap is a useful option when confronted with large myelodysplastic defects. It provides a multilayer, tension-free wound closure and spares the gluteus maximus and latissimus dorsi muscle groups.


Plastic and Reconstructive Surgery | 2016

Modification of the Radial Forearm Fasciocutaneous Flap in Partial Pharyngolaryngeal Reconstruction to Minimize Fistula Formation

Adrian S.H. Ooi; Daniel R. Butz; Zhen Gooi; David Chang

Summary: Reconstruction of pharyngolaryngoesophageal defects following salvage surgery in patients with a history of chemoradiation is a challenging problem with a high incidence of pharyngocutaneous fistula. The authors describe three cases of successful reconstruction of partial pharyngolaryngoesophageal defects using a modified radial forearm free flap with additional dermal reinforcement and review the literature for innovations in the use of radial forearm free flap for reconstruction of these difficult cases. Modification of the radial forearm free flap makes it a versatile, reliable flap that has become the “go-to” flap for partial pharyngolaryngoesophageal reconstruction.


Archive | 2018

C-Y Trilobed Flap for Improved Donor-Site Morbidity in Nipple-Areola Complex Reconstruction

Tulsi Roy; Daniel R. Butz; Zachary J. Collier; David H. Song

Nipple-areola complex (NAC) reconstruction is frequently the final step in postmastectomy breast reconstruction and provides patients greater satisfaction with their surgical outcomes and body image. Trilobed local flaps are reliable and technically straightforward options for NAC reconstruction given their versatility and minimal donor-site morbidity. Modifications of the technique that serve to facilitate donor-site closure and eliminate dog-ears commonly extend scar length as a result. The C-Y modification described here is a reliable and easily reproducible adaptation based on triangular closures of lateral incisions that preserves nipple projection provided by traditional trilobed flaps without increasing scar length.


Journal of Reconstructive Microsurgery | 2017

Geometric Three-Dimensional End-to-Side Microvascular Anastomosis: A Simple and Reproducible Technique

Adrian S.H. Ooi; Daniel R. Butz; Sean M. Fisher; Zachary J. Collier; Lawrence J. Gottlieb

Background End‐to‐side (ETS) anastomoses are useful when preservation of distal vascularity is critical. The ideal ETS microanastomosis should maintain a wide aperture and have a smooth take‐off point to minimize turbulence, vessel spasm, and thrombogenicity of the suture line. We have developed a unique, dependable, and reproducible geometric technique for ETS anastomoses, and analyze its efficacy in our series of patients. Methods The geometric ETS technique involves creating a three‐dimensional (3D) diamond‐shaped defect on the recipient vessel wall, followed by a slit incision of the donor vessel to create a “spatula” fitting this defect. This technique removes sutures from the point of most turbulent blood flow while holding the recipient vessel open with a patch vesselplasty effect. We perform a retrospective review of a single surgeons experience using this technique. Results The geometric 3D ETS technique was used in 87 free flaps with a total of 102 ETS anastomoses in a wide range of cases including head and neck, trunk and genitourinary, and extremity reconstruction. Overall, free flap success rates were 98%. Conclusions The geometric 3D ETS technique creates a wide anastomosis, minimizes turbulence‐inducing thrombogenicity, and mechanically holds the recipient vessel open. It is reliable and reproducible, and when performed properly has been shown to have high rates of success in a large group of free tissue transfer patients.

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Mark Sisco

Northwestern University

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Michael A. Howard

NorthShore University HealthSystem

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Catherine Pesce

NorthShore University HealthSystem

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