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1.
Ann Surg Oncol ; 30(3): 1823-1829, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36471187

RESUMO

BACKGROUND: A major concern of lymphaticovenous anastomosis (LVA), which has not been studied, is increased risk of metastasis. Melanoma patients with macrometastatic lymph node disease represent a high-risk group for recurrence and metastasis. On the basis of a literature review, this present study is the first to evaluate the impact of prophylactic LVA on cancer survival and recurrence. METHODS: This was a comparison study of patients with cutaneous melanoma who underwent therapeutic lymphadenectomy alone (comparison group) or combined with prophylactic LVA (LVA group) between 2014 and 2020. A single surgeon performed all cancer resections, therapeutic lymphadenectomies, and LVA. Exclusion criteria included non-melanoma skin cancers, stage IV cancers before lymphadenectomy, microscopic lymphatic disease (i.e., positive sentinel node biopsy was the sole indication for lymph node dissection), or follow-up time less than 12 months unless the patient died earlier owing to melanoma-related complications. RESULTS: This study included 23 patients in the LVA group and 22 consecutive patients in the comparison group. The two groups were similar in age, sex, and cancer stages. The comparison group had longer follow-up times (median 67.62 versus 29.73 months in the LVA group; p < 0.01). Average size of largest metastatic lymph node was 45.91 ± 35.03 mm and 44.54 ± 23.32 mm in the LVA and comparison groups, respectively (p = 0.99). There were no differences in OS, DMFS, and RFS times after more than 2 years of follow-up since the index surgery. CONCLUSION: Prophylactic LVA performed for macrometastatic melanoma is not a strong risk factor for relapse and metastasis. LEVEL OF EVIDENCE: II Therapeutic.


Assuntos
Melanoma , Neoplasias Cutâneas , Humanos , Melanoma/patologia , Neoplasias Cutâneas/patologia , Metástase Linfática , Recidiva Local de Neoplasia/cirurgia , Excisão de Linfonodo , Biópsia de Linfonodo Sentinela , Anastomose Cirúrgica
2.
J Hand Surg Am ; 48(6): 624.e1-624.e9, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-35379515

RESUMO

PURPOSE: Symptomatic carpal tunnel syndrome in patients with advanced ipsilateral glenohumeral arthritis requiring total shoulder arthroplasty (TSA) may be easily overlooked. Even when diagnosed beforehand, most upper extremity surgeons have historically chosen to perform TSA and carpal tunnel release (CTR) separately. We hypothesized that combined single-stage TSA and CTR is feasible and yields results comparable with those when the 2 procedures are performed separately, while avoiding 2 surgeries. METHODS: This was a retrospective review of patients who underwent single-stage primary TSA and ipsilateral CTR between 2015 and 2019. The shoulder outcomes included pain, range of motion, and validated quality of life (QoL) questionnaires: Veterans RAND 12-Item Health Survey (VR-12) and Penn Shoulder Score. The CTR outcomes included pain, grip, pinch, VR-12, shortened Disabilities of the Arm, Shoulder, and Hand Questionnaire (QuickDASH), and Boston Carpal Tunnel Questionnaire. The time to the initiation of rehabilitation and complications were also analyzed. The comparison group consisted of patients who underwent independent TSA or CTR during the same period. RESULTS: Forty-one patients underwent concomitant TSA and CTR, 248 underwent isolated TSA, and 154 underwent isolated CTR. The shoulder outcomes of patients who underwent the combined procedure were similar to those of patients who underwent isolated TSA in terms of pain, range of motion, general QoL (VR-12), and shoulder-specific QoL (Penn Shoulder Score). The outcomes of patients who underwent the combined procedure were similar to those of patients who underwent isolated CTR in terms of pain, grip and pinch, general QoL (VR-12), QuickDASH, and Boston Carpal Tunnel Questionnaire. The time to the initiation of rehabilitation was also comparable. CONCLUSIONS: Concomitant CTR and TSA are feasible. The functional outcomes and QoL of patients who underwent the concomitant treatment were comparable with those of patients who underwent the 2 procedures separately. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic IV.


Assuntos
Artroplastia do Ombro , Síndrome do Túnel Carpal , Humanos , Síndrome do Túnel Carpal/cirurgia , Síndrome do Túnel Carpal/diagnóstico , Seguimentos , Qualidade de Vida , Resultado do Tratamento , Dor/cirurgia
3.
Aesthetic Plast Surg ; 47(4): 1528-1534, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-36637490

RESUMO

BACKGROUND: While numerous studies have demonstrated enhanced hair growth following platelet-rich plasma (PRP) treatments in patients with male and female pattern hair loss, no study has demonstrated its impact on quality of life (QoL) using a validated tool. OBJECTIVE: This prospective study aimed to assess the psychological impact of PRP treatment for hair loss. METHODS: PRP scalp injections were repeated monthly for the first 3 months, then quarterly for 1 year, and annually thereafter. HAIRDEX 48, a validated scale assessing QoL for patients with alopecia, was administered before PRP and at each visit. Scores were interpolated on a 0-100 scale: 0 representing highest QoL, 100 lowest, and compared using paired t-tests. RESULTS: Ninety-two patients receiving PRP were analyzed. Mean age was 48.2 ± 17.4 years and 55% were male. Patients had an average of 4 ± 2 treatments; most (60%) had ≥4. Thirty patients (33%) completed both pre- and post-PRP questionnaires. Prior to PRP, 61% tried minoxidil, 16% finasteride, and 1% hair transplant. Total HAIRDEX scores improved from a mean of 23.2 ± 15.4 to 19.7 ± 11.3 after 3-5 months after PRP (p < 0.001). There were also decreases in symptoms (10.0 ± 12.0 vs. 9.6 ± 10.8, p < 0.001), functioning (16.1 ± 18.1 vs. 13.3 ± 12.6, p < 0.001), and emotions domains (37.7 ± 24.1 vs. 32.2 ± 18.9, p < 0001). For stigmatization and self-confidence domains, improvements from pre-PRP were significant at 3-5 months (21.2 ± 16.8 vs. 17.4 ± 12.1; p < 0.001 and 24.8 ± 17.7 vs. 20.9 ± 15.5; p < 0.001, respectively) and >6 months (18.9 ± 13.9; p < 0.001 and19.5 ± 18.6; p = 0.008, respectively). CONCLUSIONS: PRP improves QoL and is an effective part of multimodal therapy for hair loss. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .


Assuntos
Plasma Rico em Plaquetas , Qualidade de Vida , Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Estudos Prospectivos , Alopecia/terapia , Medidas de Resultados Relatados pelo Paciente , Resultado do Tratamento
4.
J Hand Surg Am ; 47(4): 385.e1-385.e8, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-34154855

RESUMO

PURPOSE: The combined treatment of trapeziometacarpal joint arthritis and scapholunate advanced collapse (SLAC) wrist presents unique challenges. The consequences of the loss of radial column support caused by scaphoidectomy and trapeziectomy are not well known. The purpose of this study was to evaluate the outcomes of the simultaneous and staged treatment of trapeziometacarpal joint arthritis and SLAC wrist. METHODS: A retrospective review of patients who underwent surgery for both trapeziometacarpal joint arthritis and SLAC wrist was performed. The wrist and thumb range of motion; grip and pinch strength; pain; quick Disabilities of the Arm, Shoulder and Hand (QuickDASH) scores; and radiographs were analyzed. RESULTS: Twenty-four patients who underwent both trapeziectomy and 1 of 3 procedures for SLAC wrist (4-corner fusion [n = 10]), proximal row carpectomy [n = 9], and total wrist arthroplasty [n = 5]) in a single stage (n = 10) or in 2 stages (n = 14) were included. The median age was 63 years. The median follow-up period was 35 months. Twelve (50%) patients underwent complete scaphoidectomy, and 12 (50%) patients underwent partial scaphoidectomy. All 3 procedures resulted in an improvement in pain at rest, pain during activity, and quick Disabilities of the Arm, Shoulder and Hand scores. The final range of motion, grip and pinch strength, and complication rates were consistent with those reported in the literature for isolated procedures. CONCLUSIONS: Trapeziometacarpal joint arthritis and SLAC wrist may be treated either simultaneously or in stages. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic V.


Assuntos
Artropatias , Osteoartrite , Força da Mão , Humanos , Pessoa de Meia-Idade , Osteoartrite/diagnóstico por imagem , Osteoartrite/cirurgia , Dor , Amplitude de Movimento Articular , Punho , Articulação do Punho/cirurgia
5.
J Craniofac Surg ; 33(8): 2394-2399, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35859273

RESUMO

BACKGROUND: Calvarial bone flap (CBF) loss is a common complication following craniotomy and subsequent skull reconstruction can be challenging. Defining predictors of CBF failure not only improves patient outcomes but reduces the need for complex reconstruction often requiring plastic surgery consultation. As CBF failure can occur many years following craniotomy, this study aimed to determine risk factors of CBF loss using long-term follow-up. MATERIALS AND METHODS: This retrospective study included patients who underwent craniotomy with CBF reinsertion between 2003 and 2013 at a tertiary academic institution. Patients were included if demographics, comorbidities, and long-term outcomes were available. Multivariable logistic regression modeled the odds of CBF failure, defined as permanent removal for bone flap-related issues. The median follow-up was 6.9 years (interquartile range: 1.8-10.8 y). RESULTS: There were 222 patients who met inclusion criteria and underwent craniotomy with CBF reinsertion, primarily for tumor resection or intracranial pressure relief. CBF failure occurred in 76 (34.2%) patients. Up to 4 CBF reinsertions were performed in both failure and nonfailure groups. The risks of CBF loss increased with each additional CBF elevation by 17-fold ( P <0.001), male sex by 3-fold ( P =0.005), and tumor etiology by 3-fold ( P =0.033) ( C -index=0.942). CONCLUSIONS: Each CBF reinsertion dramatically increases the risk of CBF loss. This finding may optimize patient selection and surgical planning. Early multidisciplinary discussions between plastic surgeons and neurosurgeons may avoid multiple CBF elevations and prevent the adverse sequela of high-risk calvarial reconstruction efforts.


Assuntos
Procedimentos de Cirurgia Plástica , Crânio , Humanos , Masculino , Estudos Retrospectivos , Crânio/cirurgia , Craniotomia/efeitos adversos , Retalhos Cirúrgicos/cirurgia , Complicações Pós-Operatórias/etiologia
6.
Aesthet Surg J ; 42(9): 971-977, 2022 08 24.
Artigo em Inglês | MEDLINE | ID: mdl-35350068

RESUMO

BACKGROUND: Tranexamic acid (TXA) has rapidly gained popularity in aesthetic surgery. Previous reports have suggested that TXA provides a dry surgical field and significantly reduces operating time during facelift surgery. OBJECTIVES: The aim of this study was to build upon earlier findings by providing a large cohort matched alongside historic controls and more clearly document time saved when performing facelift surgery. METHODS: A retrospective, single-surgeon case-control study was undertaken between July 2016 and October 2021. All patients underwent facelift surgery alone or in combination with fat transfer and perioral chemical peel. All patients received subcutaneous infiltration of 0.5% lidocaine/1:200,000 epinephrine with or without 1 or 2 mg/mL TXA. Patient demographics, TXA dose, surgical time, and minor and major complications were examined. RESULTS: In total 145 consecutive patients were identified: 73 in Group 1 (no-TXA) and 72 in Group 2 (TXA). No differences in terms of gender distribution (P = 0.75), age (P = 0.54), BMI (P = 0.18), frequency of secondary rhytidectomy (P = 0.08), rate of ancillary lipografting (P = 0.44), TXA dose (P = 0.238), and minor complication rate (P = 0.56) were observed. However, mean surgical time in the no-TXA group was 21 minutes longer than in the TXA group (P = 0.016). Six patients (8%) in the no-TXA group experienced minor complications vs 8 patients (11%) in the TXA group. No patients experienced major complications. CONCLUSIONS: Although previous studies have highlighted the potential benefits of TXA in aesthetic surgery, most of the data remain subjective and non-validated. This report adds to the objective body of evidence supporting TXA in facial aesthetic surgery by documenting time saved in the operating room without additional surgical morbidity.


Assuntos
Antifibrinolíticos , Ritidoplastia , Ácido Tranexâmico , Antifibrinolíticos/efeitos adversos , Perda Sanguínea Cirúrgica/prevenção & controle , Transfusão de Sangue , Estudos de Casos e Controles , Humanos , Salas Cirúrgicas , Estudos Retrospectivos , Ritidoplastia/efeitos adversos , Ácido Tranexâmico/efeitos adversos
7.
Ann Plast Surg ; 87(1): 105-106, 2021 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-33661221

RESUMO

ABSTRACT: Recent literature suggests that severe COVID-19 is associated with an exaggerated immune response during viral infection, resulting in cytokine storm. Although elevated plasma interleukin 6 (IL-6) has been reported in severe COVID-19 infections, and treatment with anti-IL-6 (tocilizumab) has demonstrated promising outcomes both domestically and abroad, reports remain limited and therapeutic regimens vary considerably. Furthermore, research pertaining to transplant recipients, COVID-19 infection, and anti-IL-6 therapy remains underdeveloped. Herein, we report the successful treatment of the only reported facial vascularized composite allograft (VCA) recipient who contracted severe COVID-19 and the first reported VCA recipient with COVID-19 infection that received anti-IL-6 immunotherapy resulting in an excellent recovery despite his multiple preexisting and COVID-19-related comorbidities-adult respiratory distress syndrome, acute renal failure requiring hemodialysis, and concomitant sepsis due to extensive drug-resistant bacterial pneumonia upon presentation. To date, he has not demonstrated any anti-IL-6 drug-related adverse effects. This preliminary report also suggests that our immunosuppressed VCA patients can indeed demonstrate a robust cytokine response during COVID-19 infection and may also respond favorably to emerging anticytokine immune therapies. We hope that our experience proves helpful to other centers that might encounter critically ill VCA recipients in the ongoing COVID-19 pandemic and in the years to follow.


Assuntos
COVID-19 , Pandemias , Adulto , Síndrome da Liberação de Citocina , Humanos , Masculino , SARS-CoV-2 , Transplantados
8.
Aesthet Surg J ; 41(4): 391-397, 2021 03 12.
Artigo em Inglês | MEDLINE | ID: mdl-32644111

RESUMO

BACKGROUND: Rebound bleeding during facelift surgery is a major cause of facelift hematomas. Subcutaneous infiltration of tranexamic acid (TXA) combined with lidocaine and epinephrine was recently retrospectively shown to decrease rebound bleeding. No study has prospectively examined the effect of subcutaneous TXA on intraoperative and postoperative bleeding during facelift surgery. OBJECTIVES: The aim of this study was to prospectively demonstrate that TXA combined with local anesthesia safely reduces the effects of rebound bleeding, reduces operative time, and decreases postoperative drainage. METHODS: This was a prospective, single-surgeon, case-control study performed between July 2019 and March 2020. Thirty-nine patients (35 female and 4 male; mean age, 64.9 years; age range, 49-80 years) underwent facelift surgery alone or in combination with facial rejuvenation procedures. All patients were injected subcutaneously with 1 or 2 mg/mL TXA + 0.5% lidocaine/1:200,000 epinephrine. Patient demographics, TXA dose, time to hemostasis, drain output, and minor and major complications were recorded. RESULTS: The mean time to hemostasis was 6.4 minutes for the left and right sides each. Average postoperative day (POD) 0 drain outputs were 13.9 mL (left) and 10.1 mL (right). Average POD 1 drain outputs were 15.1 mL (left) and 15.6 mL (right). Drains were removed from all patients on POD 1 or 2. There were 2 minor complications (flap necrosis plus infection, marginal mandibular neuropraxia) and no major complications. CONCLUSIONS: TXA safely and effectively decreased bleeding, operating room time, and drain output compared with traditional local anesthetic techniques. Our future goal is to determine if epinephrine can be completely removed from the local anesthetic and replaced with TXA for facelift surgery.


Assuntos
Antifibrinolíticos , Ritidoplastia , Ácido Tranexâmico , Idoso , Idoso de 80 Anos ou mais , Antifibrinolíticos/efeitos adversos , Perda Sanguínea Cirúrgica , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Estudos Retrospectivos , Ácido Tranexâmico/efeitos adversos
9.
J Reconstr Microsurg ; 36(4): 247-252, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-31891946

RESUMO

BACKGROUND: Extremity lymphedema is a dreaded complication of ilioinguinal or axillary lymphadenectomy. In conventional lymph node dissection, no effort is performed to maintain or reestablish extremity lymphatic circulation. We hypothesized that immediate lymphatic reconstruction (ILR) could be a reproducible procedure to maintain functional lymphatic flow after ilioinguinal and axillary lymphadenectomy in patients with malignant melanoma. This is the first report describing prophylactic ILR in patients with melanoma who underwent complete lymph node dissection for gross nodal disease. PATIENTS AND METHODS: We report a case series of 22 malignant melanoma patients who had axillary or ilioinguinal lymph node dissection for bulky locoregional invasion with immediate lymphatic reconstruction. A novel method to identify and select lymphatics with high flow using fluorescent lymphangiogram with indocyanine green dye gradient software is described. Surgical details, common difficulties, as well as indications are discussed. Instructional videos are also provided. RESULTS: Our technique is reproducible, since we have successfully completed immediate lymphatic reconstruction in 22 cases consecutively. Intradermal indocyanine green injections allowed for visualization of 1 to 3 transected lymphatics after lymphadenectomy. An average of 1.8 lymphaticovenous bypass (range 1-3) was performed per patient. CONCLUSION: Reestablishment of lymphatic circulation after ilioinguinal or axillary lymphadenectomy in patients with melanoma characterizes a novel method that may reduce the problem of upper and lower extremity iatrogenic lymphedema. This is particularly important given the emergence of new adjuvant treatment modalities that considerably improve patients' survival after lymphadenectomy.


Assuntos
Vasos Linfáticos/cirurgia , Linfedema/prevenção & controle , Melanoma/cirurgia , Adulto , Idoso , Anastomose Cirúrgica , Feminino , Humanos , Verde de Indocianina , Excisão de Linfonodo , Metástase Linfática , Linfografia , Masculino , Melanoma/patologia , Pessoa de Meia-Idade , Estudos Prospectivos , Reprodutibilidade dos Testes , Software
11.
Ann Plast Surg ; 81(4): 416-422, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30059381

RESUMO

BACKGROUND: Titanium mesh is a popular material for cranioplasty. However, long-term outcomes of these reconstructions remain unknown. We aimed to compare long-term outcomes between patients undergoing both (1) skull reconstruction with titanium mesh and other commonly used cranioplasty materials and (2) scalp reconstructions with locoregional flaps and free tissue transfers. METHODS: A retrospective review of patients treated with 466 cranioplasties (401 patients) between 2002 and 2014 was performed. RESULTS: Materials used for reconstructions included nontitanium alloplast (52.0%), titanium mesh (38%), and autologous bone (10%). Median cranial defect size was 58.4 cm. Eighty-three reconstructions (18%) included full-thickness scalp defect with a median area of 155.4 cm. Median follow-up was 3.9 years. Retention rate for isolated cranioplasty was 90%, 89.9%, and 77.1% for titanium mesh, nontitanium alloplast, and autologous bone, respectively (P > 0.05). In composite defect cases, retention rate for autologous bone was comparable, 81.8% (P > 0.05), whereas for titanium mesh and nontitanium alloplast it was significantly lower, 46.8% and 72.0%, respectively (P < 0.05). The retention rate of titanium mesh cranioplasty with free fascio- and myocutaneous flaps was higher when compared with locoregional and free muscle flaps (P < 0.05). CONCLUSIONS: Titanium mesh offers a durable repair of isolated bone defects. However, in high-risk patients with soft-tissue defect, the outcomes are significantly worse. In these cases, free tissue transfer for soft-tissue coverage tends to be more successful, especially when using a myocutaneous or fasciocutaneous free flap. This is the first study to identify a high complication rate of this popular material, especially when it is combined with a locoregional scalp flap or free muscle flap. Therefore, in these cases, titanium mesh should be used with caution.


Assuntos
Procedimentos de Cirurgia Plástica/instrumentação , Crânio/cirurgia , Telas Cirúrgicas , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Transplante Ósseo , Criança , Feminino , Retalhos de Tecido Biológico , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Estudos Retrospectivos , Couro Cabeludo/cirurgia , Titânio
12.
J Reconstr Microsurg ; 34(1): 41-46, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29032571

RESUMO

BACKGROUND: The purpose of this study was to: (1) evaluate the mechanism of lymph drainage through a vascularized lymph node (VLN) flap, and (2) investigate if the number of VLNs impacts lymph transit time through the flap. METHODS: Twenty-seven axillary VLN flaps were elevated in 14 Sprague-Dawley rats and divided into three groups (n = 9 each) based on the number of lymph nodes present: group 1 (0-VLNs), group 2 (2-VLNs), and group 3 (4-VLNs). Indocyanine green (n = 8/group) and Alexa680-albumin (n = 1/group) were injected into the edge of flaps and the latency period between injection and fluorescence in the axillary vein was recorded. Stereomicroscopic fluorescent lymphography was performed to directly visualize lymphatic transit through VLNs. RESULTS: Fluorescence was detected in the axillary vein after 229s [47-476], 79s [15-289], and 56s [16-110] in group 1, 2, and 3, respectively (p < 0.01). There was a negative correlation between the number of VLNs in the flap and the latency period (r = -0.59; p < 0.05). Median flap weights were comparable in group 1, 2, and 3 (258 mg [196-349], 294 mg [212-407], 315 mg [204-386], respectively; p = 0.54). Stereoscopic lymphography allowed direct visualization of lymphatic fluid transit through VLNs. CONCLUSION: Lymphatic fluid in VLN flaps drains into the venous system mainly by passing through the afferent lymphatics and lymph nodes. A secondary mechanism appears to be the diffusion of fluid into the venous system via intratissue lymphaticovenous connections created during flap elevation. Increasing the number of lymph nodes in the flap is associated with a more rapid transit of fluid.


Assuntos
Axila/cirurgia , Linfonodos/transplante , Sistema Linfático/fisiologia , Retalhos Cirúrgicos/irrigação sanguínea , Animais , Corantes , Modelos Animais de Doenças , Drenagem , Verde de Indocianina , Linfonodos/irrigação sanguínea , Linfonodos/inervação , Linfografia , Masculino , Ratos , Ratos Sprague-Dawley
13.
Microsurgery ; 35(8): 662-7, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26366994

RESUMO

Vascularized lymph node transfer (VLNT) is a promising microvascular free flap technique for the surgical treatment of lymphedema. To date, few experimental animal models for VLNT have been described and the viability of lymph nodes after the transfer tested. We aimed to evaluate the feasibility of axillary VLNT in the rat. Lymph node containing flaps were harvested from the axillary region in 10 Lewis rats based on the axillary vessels. Flaps were transferred to the ipsilateral groin and end-to-side microanastomosis was performed to the femoral vessels using 10-0 sutures. Indocyanine green (ICG) angiography was used to confirm flap perfusion. On postoperative day 7, flaps were elevated to assess their structure and vessel patency. Hematoxylin and eosin staining was used to confirm the presence and survival of lymph nodes. All animals tolerated the procedure well. Immediate post-procedure ICG angiography confirmed flap perfusion. No signs of ischemia or necrosis were observed in donor extremities. At postoperative day 7, all flaps remained viable with patent vascular pedicles. Gross examination and histology confirmed the presence of 3.6 ± 0.5 lymph nodes in each flap without any signs of necrosis. This study showed that the transfer of axillary lymph nodes based on the axillary vessels is feasible. The flap can be used without the need for donor animals and it contains a consistent number of lymph nodes. This reliable VLNT can be further utilized in studies involving lymphedema, transplantation, and induction of immunologic tolerance.


Assuntos
Retalhos de Tecido Biológico/transplante , Linfonodos/transplante , Linfedema/cirurgia , Modelos Animais , Anastomose Cirúrgica , Animais , Axila , Estudos de Viabilidade , Artéria Femoral/cirurgia , Veia Femoral/cirurgia , Retalhos de Tecido Biológico/irrigação sanguínea , Sobrevivência de Enxerto , Virilha/irrigação sanguínea , Virilha/cirurgia , Linfonodos/irrigação sanguínea , Masculino , Microcirurgia , Ratos , Ratos Endogâmicos Lew
14.
Neuromodulation ; 18(8): 721-8, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26374095

RESUMO

BACKGROUND: Neurostimulation of the hypoglossal nerve has shown promising results in the treatment of obstructive sleep apnea. This anatomic study describes the detailed topography of the hypoglossal nerve's motor points as a premise for super-selective neurostimulation in order to optimize results and minimize the risk of complications related to main nerve trunk manipulation. METHODS: Thirty cadaveric hypoglossal nerves were dissected and characterized by number of branches, arborization pattern, and terminal branch motor point location. For each motor point, the distance to cervical midline (x axis), distance to posterior aspect of the symphysis (y axis), and depth from the plane formed by the inferior border of symphysis and anterior border of hyoid (z axis) were recorded. RESULTS: The average number of distal branches for each hypoglossal nerve was found to be 9.95 ± 2.28. The average number of branches per muscle was found to be 3.3 ± 1.5 for the hyoglossus muscle, 1.8 ± 0.9 for the geniohyoid muscle, and 5.0 ± 1.6 for the genioglossus muscle. It was found that branches to the genioglossus and geniohyoid muscles were located closer to midline (relative lengths of 0.19 ± 0.07 and 0.19 ± 0.05, respectively) while hyoglossus branches were located more laterally (0.38 ± 0.10 relative length). On the y-axis, the branches to the genioglossus were the most anterior and therefore closest to the posterior symphysis of the mandible (relative length of 0.48 ± 0.11), followed by the geniohyoid (0.66 ± 0.09), and the hyoglossus (0.76 ± 0.16). The branches to the geniohyoid were the most superficial (relative length of 0.26 ± 0.06), followed by the genioglossus (0.36 ± 0.09), and finally, the hyoglossus branches (0.47 ± 0.11), which were located deeply. CONCLUSION: A topographical map of the hypoglossal nerve terminal motor points was successfully created and could provide a framework for the optimization of the neurostimulation techniques.


Assuntos
Nervo Hipoglosso/fisiologia , Microcirurgia/métodos , Músculo Esquelético/fisiopatologia , Apneia Obstrutiva do Sono/terapia , Antropometria , Cadáver , Humanos , Língua/anatomia & histologia , Língua/inervação
15.
Hand (N Y) ; 18(3): 413-420, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-34420411

RESUMO

BACKGROUND: Historically, amputation and pollicization has been the recommended surgical treatment for Blauth type III hypoplastic thumbs. However, due to aesthetic objections or cultural preferences, some parents seek out alternative surgical options. The present study describes a nontraditional technique that preserves and augments the hypoplastic thumb. METHODS: Patient charts were retrospectively reviewed to identify patients with Blauth type III hypoplastic thumbs who underwent thumb reconstruction at our institution from 2008 to 2018. The reconstruction procedure involved toe phalanx transfer, staged tendon transfers, and lengthening as needed. Motion was assessed categorically as ability to flex, extend, or oppose the thumb. Functionality was assessed as ability to pinch and grasp with the surgical hand. Patient- or parent-reported improvement in thumb function was also recorded. RESULTS: Of the 13 patients, 100% could flex, extend, and oppose the thumb to some degree. Eleven patients (85%) had functional one-handed grasp, and 9 (69%) had a functional pinch. Eleven patients (85%) reported no functional limitations of the operative hand. Thirteen patients (100%) reported improvement in hand function after surgery as compared to pre-operatively. There were 2 minor complications (15%), both of which resolved after intervention. No patients experienced donor-site morbidity. CONCLUSIONS: Reconstruction of Blauth III thumbs is a nontraditional technique that allows for digit retention by salvaging the hypoplastic thumb. In the present study, the majority of patients had functional thumbs and all reported postoperative improvement. Overall, our results suggest that reconstruction is a viable surgical option for Blauth III hypoplastic thumbs.


Assuntos
Deformidades da Mão , Procedimentos de Cirurgia Plástica , Humanos , Polegar/cirurgia , Polegar/anormalidades , Estudos Retrospectivos , Deformidades da Mão/cirurgia
16.
Plast Reconstr Surg ; 151(1): 158e-166e, 2023 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-36576831

RESUMO

BACKGROUND: Previous studies have compared various attributes of independent and integrated resident applicants and identified criteria for a successful match outcome. Few studies have directly examined the relative desirability of various surgical and nonsurgical specialties from the resident's perspective. To address this, the authors analyzed plastic surgery resident applicants and available positions from 2010 through 2018 and compared these data alongside four surgical and five nonsurgical specialties. METHODS: In this cross-sectional, retrospective review from the San Francisco Match and National Resident Matching Program, year, number of applicants, available positions, and specialty (integrated or independent plastic, general, or orthopedic surgery; neurosurgery; otolaryngology; anesthesiology; emergency, family, or internal medicine; and pediatrics) were examined. RESULTS: From 2010 through 2018, the number of integrated positions increased by 142%, whereas the number of integrated applicants increased only by 14.5%. The number of available independent positions decreased by 32.6%, whereas the number of independent applicants decreased by 43.9%. All surgical subspecialties demonstrated a decrease in applicants relative to positions (range 9.9% to 24.8%). Unlike the surgical specialties, the nonsurgical fields increased both their number of positions (14% to 57.2%) and number of applicants (2.2% to 44.1%). In particular, applicants to emergency, family, and internal medicine increased dramatically (17% to 44.1%). CONCLUSIONS: Applicants to plastic surgery and other surgical residencies changed minimally. The nonsurgical specialties showed a significant increase in the number of applicants, suggesting increasing interest in the nonsurgical fields. Contributing factors may include medical school pressures, lifestyle concerns, and experience with various specialties during medical school. Means of enhancing medical student exposure to plastic surgery are suggested.


Assuntos
Internato e Residência , Procedimentos de Cirurgia Plástica , Cirurgia Plástica , Humanos , Criança , Estados Unidos , Educação de Pós-Graduação em Medicina , Cirurgia Plástica/educação , Estudos Transversais
17.
J Hand Surg Glob Online ; 5(1): 69-72, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36704383

RESUMO

Flexor carpi radialis tendinitis is a condition that almost exclusively affects the distal aspect of the tendon where it lies in a tight fibro-osseous tunnel. Tendinitis of the proximal aspect of the tendon at its myotendinous junction is extremely rare. Herein, we present a single case of calcific tendinitis of the flexor carpi radialis tendon at its myotendinous junction in a throwing athlete. Diagnostic challenges and treatments are discussed.

18.
Surg Technol Int ; 22: 326-30, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23023576

RESUMO

In orthopaedic surgery, surgical site contamination leading to periprosthetic infections is a major concern with important morbidity, financial and emotional burden. Single-use instruments developed for total knee arthroplasties are intended to simplify the surgical procedure, decrease the number of surgical trays that require sterilization and reprocessing, decrease the incidence of possible contamination through breaks in surgical wraps, and improve operating room efficiency. As the demand for total knee arthroplasty continues to rise, a greater burden on the healthcare system may be created. The use of single-use instruments, cutting guides, and trials will play an increasing role in total knee arthroplasty through improved operating room efficiency.


Assuntos
Artroplastia do Joelho/instrumentação , Artroplastia do Joelho/tendências , Equipamentos Descartáveis , Prótese do Joelho , Osteotomia/instrumentação , Osteotomia/tendências , Desenho de Equipamento , Análise de Falha de Equipamento , Humanos
19.
JBJS Case Connect ; 12(3)2022 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-35809023

RESUMO

CASE: A 53-year-old man sustained an injury to his left index finger and underwent presumably traumatic neuroma excision from the radial digital nerve 2 years ago. He presented with a painful mass distal to the prior site of neuroma excision with distinctly different symptoms from those that led to his index surgery. Thus, he underwent excisional biopsy of the mass which was adherent to his radial digital nerve consistent with a benign glomus tumor on histologic examination. CONCLUSION: Digital nerve glomus tumors are rare. In most of the cases, some portion of the digital nerve requires excision but decreased pain can be expected.


Assuntos
Tumor Glômico , Neuroma , Dedos/inervação , Tumor Glômico/complicações , Tumor Glômico/diagnóstico , Tumor Glômico/cirurgia , Mãos/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Neuroma/patologia , Neuroma/cirurgia , Dor
20.
Plast Reconstr Surg Glob Open ; 10(2): e4093, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35169525

RESUMO

Hand aneurysms in infants are extremely rare and, unlike their adult counterparts, cannot be explained by repetitive trauma to the palm. When they occur, they are most often located in the ulnar artery. Usually there is no history of trauma, and an alternative diagnosis like malignancy must be excluded. Helpful physical findings to aid diagnosis include rapid appearance of a mass over the course of a few days, pulsatile nature, and location along the ulnar side of the hand. These cases can be challenging and excisional biopsy may be required if the lesion is thrombosed and does not have a characteristic appearance on imaging. Aneurysms located in the palmar arch or common digital arteries are usually treated with simple excision, while those located in the ulnar artery often require repair or reconstruction. Here we present a unique case of an infant with a pseudoaneurysm involving the superficial palmar arch on the radial side of the hand with a likely congenital etiology. Diagnostic challenges and treatment options are discussed.

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