[Current role of the latissimus dorsi flap in traumatology: Analysis of the activity of a plastic surgery department in a military hospital]. / Place actuelle du lambeau de grand dorsal en traumatologie : analyse de l'activité d'un service de chirurgie plastique en hôpital militaire.

Reconstructive surgery's workhorse, the latissimus dorsi flap is increasingly abandoned in favour of fasciocutaneous flaps. The purpose of this study was to analyse the methods used to perform this flap and the evolution of its indications in order to define its current place in traumatology. Forty-four cases were recorded retrospectively from January 2000 to December 2020 at HIA Percy, including 37 cases of free flaps, mainly performed for reconstruction of extensive loss of substance with bone and/or joint exposure. It was also performed in 10.8% of cases for salvage after failure of an alternative reconstruction solution. This analysis confirms the value of the latissimus dorsi flap in cases of significant substance loss in the lower limb, but also in burn patients for functional rehabilitation or to allow early rehabilitation.

[Pre-iliac tumor mass syndrome: An atypical rheumatoid nodule]. / Syndrome de masse tumorale pré-iliaque : un nodule rhumatoïde atypique.

Rheumatoid arthritis (RA) is a polymorphous chronic inflammatory disease that is common in general population and is responsible for the occurrence of subcutaneous or visceral rheumatoid nodules. Their typical clinical presentations and localizations do not generally pose any diagnostic or therapeutic problem. We report here an atypical fistulized presentation of an unusual iliac rheumatoid nodule in a 65-year-old female patient. The evolution was favorable without recurrence at 6 months after complete surgical resection and appropriate antibiotherapy.

Methylmetacrylate (PMMA) cranioplasty technique: Technical interest of intraoperative modeling and review of the literature.

Reconstruction of bone loss in the cranial vault may be necessary for functional or aesthetic reasons following trauma, decompression craniectomy, or craniofacial malformations. Many techniques have been described in the literature, using various materials, each with its own advantages and drawbacks. Reconstruction with polymethylmetacrylate cement has the advantage of a durable result and relative ease of use. In this article we present our cement cranioplasty technique through 4 clinical cases of cranial vault reconstruction, by direct intraoperative modeling on the bone defect. This accessible, effective method, applicable to all sizes of defect, remains an attractive option in the arsenal of techniques available today.

[Prioritization of risk situations in neuro-urology: Guidelines based on the Delphi method from Association française d'urologie (AFU), Association francophone internationale des groupes d'animation de la paraplégie (AFIGAP), Groupe de neuro-urologie de langue française (GENULF), Société française de médecine physique et de réadaptation (SOFMER) and Société interdisciplinaire francophone d'urodynamique et de pelvi-périnéologie (SIFUD-PP)]. / Priorisation des situations à risque en neuro-urologie : recommandations par méthode Delphi de l'Association française d'urologie (AFU), l'Association francophone internationale des groupes d'animation de la paraplégie (AFIGAP), le Groupe de neuro-urologie de langue française (GENULF), la Société française de médecine physique et de réadaptation (SOFMER) et la Société interdisciplinaire francophone d'urodynamique et de pelvi-périnéologie (SIFUD-PP).

PURPOSE: During the COVID-19 pandemic, a care reorganization was mandatory, and affected patients in different areas, including management of neurogenic lower urinary tract dysfunction. This work aims to provide validated schedule concerning the assessment and management of patients in neuro-urology. METHODS: Based on a literature review and their own expertise, a steering committee composed of urologists and physical medicine and rehabilitation practitioners generated a comprehensive risk-situation list and built a risk scale. A panel of French-speaking experts in neuro-urology was asked to define the timing for each clinical situation and validated these new recommendations through a Delphi process approach. RESULTS: The 49 experts included in the rating group validated 163 propositions among the 206 initial items. The propositions were divided into four domains - diagnosis and assessment, treatment, follow-up, and complications - and two sub-domains - general (applicable for all neurological conditions) and condition-specific (varying according to the neurological condition (spinal cord injury, multiple sclerosis, brain injury, Parkinsonism, spinal dysraphism, lower motor neuron lesions)). CONCLUSIONS: This multidisciplinary collaborative work generates recommendations based on expert opinion, providing a validated timing for assessment and management of patients in neuro-urology which may help clinicians to reorganize their patients' list with a personalized medicine approach, in a context of health crisis or not.

[Current place of cultured epithelial autografts in the management of massive burns and future prospects: Literature review]. / Place actuelle des cultures d'épidermes autologues dans la prise en charge des brûlures étendues et perspective d'avenir : revue de littérature.

Cultured Epithelial Autografts (CEAs), developed at the end of the 1970s from in vitro culture amplification of keratinocytes, have led to a therapeutic revolution in the treatment of major burns. The areas of improvement of the cultures initially involved the manufacturing processes (culture media, support matrices, etc.) and then clinical applications (use of a largely expanded allogeneic or autologous dermal bed). These advances have enabled burn centers (BC) using CEAs to obtain very satisfactory percentages of graft integration and survival of major burns patients. However, since CEAs are not without major drawbacks (fragility, high rate of infection, high cost, unstable scars), these pitfalls have restricted their use worldwide. As of 2014, CEAs produced by Genyzme Tissue Repair are no longer available in Europe, which has considerably reduced an indispensable therapeutic arsenal for severe and extensive burns. To overcome these therapeutic limitations, current research is focusing on techniques combining surgery, tissue engineering and cell therapy. The advent of regenerative medicine, based on the use of stem cells, in particular mesenchymal stem cells (MSC), can contribute to an improvement in the management of these massively burned patients (optimization of the environmental medium, attenuation of the systemic inflammatory response and the immunosuppressive effects of the burn, acceleration of tissue regeneration, etc.). Cell therapy, therefore, offers alternatives to CEAs, which must imperatively retain their place in the therapeutic arsenal, namely an effective emergency coverage technique that can be improved.

[Catheters in urology: Indications and management in daily practice for the nurse]. / Les sondes en urologie : indications et prise en charge infirmière.

The urology nurse cares for patients wearing many different types of urinary catheters. Her role in the management of these devices in external care, clinical units, operating room or at home is fundamental. We performed a state of the art of good practices and of the up to date knowledge regarding the indication, placement, and specific care of these devices, which are every day more numerous on the market. Indwelling bladder catheter are placed, daily managed and removed by nurses, depending on an initial medical indication. The type of catheter must be adapted to the patient and to the clinical situation. Its daily care and management should allow not only the best comfort for the patient, but also an efficient management of the associated infectious risk. The placement of ureteral catheters (simple monoJ, double J or nephrostomy), are mainly of surgical initial indication. We developed what we thought was compulsory knowledge about them for an operating theater's nurse. The associated care for urology's nurses is also detailed. This inventory of available urinary catheter's, of their indications and management, aims to be a help for the urology nurse in her daily practice. Her/his role is essential in the choice of the adequate catheter and in its correct management, not only for the urologist but also for the patient himself.

[Short recommendations from the CIAFU: Interest of the urine bacterial culture performed before endo-rectal prostate biopsy]. / Recommandations courtes du CIAFU : intérêt de l'ECBU avant biopsie de la prostate réalisée par voie endo-rectale.

Prostate biopsy is sometimes complicated by infection which can lead to death. The risk factors remain controversial, notably the urine bacterial culture carried out before a prostate biopsy. The increase in resistance induces an increase in the number of complications and the need to define new antibiotic prophylaxis strategies. The urine bacterial culture remains widely discussed in cases with post-prostate biopsy infections and urologists or experts await clear recommendations on this subject. The Infectiology Committee of the French Association of Urology has therefore set up a literature analysis work in order to reach a consensus within the committee. METHOD: A literature search was performed on Pubmed and Medline. We selected randomized studies or meta-analyzes using the keywords "prostate biopsy" and "infection" or "infectious complications". All abstracts and articles have been analyzed. The summary of the analysis was reviewed by all the members of the committee proposing the most consensual recommendation possible. RESULTS: The literature on the subject remains poor, but no evidence of a link between prebiopsy bacteriuria and post-biopsy infection has been demonstrated. CONCLUSIONS: Apart from a clinical situation which could evoke a male urinary tract infection, and moreover having to prefer the postponement of biopsies, it is not recommended to perform a routine urine culture before endo-rectal prostate biopsies (expert opinion).

Recommendations of the AFU Infectious Diseases Committee on the prevention, diagnosis and treatment of infections of endo-ureteral equipment.

INTRODUCTION: No recent national guidelines exist regarding the management of urinary tract infections (UTIs) in the presence of ureteral stent. This situation could lead to discrepancies in clinical management and less opportunity for a favorable patient's outcome. METHODS: All available data published on Medline® between 1998 and 2018 were systematically searched and reviewed. All papers assessing adult patients carrying ureteral stent were included for analysis. After studies critical analysis, national guidelines for clinical management were elaborated in order to answer clinical questions. RESULTS: A total of 451 articles were identified, of which 58 have been included. The prevalence of urinary tract infections in the presence of ureteral stent remains unknown. After 3 months, all endo-ureteral devices were colonized on microbiological study. These patients also presented a positive urine culture in 25 to 70% of the cases, often polymicrobial. Staphylococci, E. coli, Klebsiella, Pseudomonas, Enterococcus and Candida were the commonest micro-organisms responsible for urinary colonization or infection. The risk of UTI on endo-ureteral devices seemed higher the longer it stayed implanted. There is no justification in the literature to recommend a systematic change of endo-ureteral devices following a urinary tract infection. DISCUSSION: The existing literature is rich but of poor methodological quality, and therefore does not allow to draw robust conclusions. The greatest difficulty faced in this work was to accurately differentiate urinary colonizations from true infections, including clinical symptoms and not only microbiological results. CONCLUSION: These guidelines propose a standardized management of such common clinical situations. Well-designed studies are needed to upgrade the level of evidence of these guidelines.

Pregnancy and Delivery in Women with Lower Urinary Tract Reconstruction: A National Multicenter Retrospective Study from the French-Speaking Neuro-Urology Study Group (GENULF) and the Neuro-Urology Committee of the French Association of Urology.

PURPOSE: Management of pregnancy and delivery in women with lower urinary tract reconstruction is challenging and the currently available literature is insufficient to guide clinical practice. We report pregnancy and delivery outcomes in this specific population. MATERIALS AND METHODS: We conducted a national multicenter retrospective study (16 centers) including 68 women with 96 deliveries between 1998 and 2019. These women had at least 1 successful pregnancy and delivery after augmentation enterocystoplasty, catheterizable channel creation and/or artificial urinary sphincter implantation. Maternal and fetal complications during pregnancy and delivery were reported, as well as postpartum functional outcomes, according to the delivery mode. The chi-square test and Student's t-test were used to compare categorical and continuous variables, respectively. RESULTS: Overall 32% of reported pregnancies were complicated by febrile urinary tract infections, 13.5% by renal colic and 14.6% required upper urinary tract diversion. In addition, 10% of patients reported transient self-catheterization difficulties and 13.5% reported de novo or increased urinary incontinence. The preterm delivery rate was 35.3%. Elective C-section was performed in 61% of pregnancies. Twenty complications occurred during delivery (20%), including 19 during elective C-section. Urinary continence at 1 year was unchanged for 93.5% of deliveries. Delivery mode (p=0.293) and multiparity (p=0.572) had no impact on urinary continence. CONCLUSIONS: In this population C-section appeared to be associated with a high risk of complications. In the absence of any obstetric or neurological contraindications, vaginal delivery should be proposed as the first line option to the majority of these women.

[The "racket-like" flap: Method to increase the reliability of the sural neuro-cutaneous flap]. / Le lambeau neurofasciocutané sural : fiabilisation par le prélèvement d'un lambeau en raquette.

We realized a retrospective study from 2003 to 2018 comparing two surgical techniques of neuro-fascio-cutaneous sural flap harvesting to improve their reliability: the "vascular pedicle tunneling" method and the "racket-like" flap method. There are 35 flaps in this series from lower distal limb reconstruction: 21 "racket-like" flaps and 14 "tunneling-pedicle" flaps. There were no partial or total necrosis case in the "racket-like" flaps group. Our technique reduces covering failure due to partial or total necrosis risk with a statistically significant impact. We propose to extend the "racket-like" technique to every fascio-cutaneous flap available.

Medical and surgical management of lower extremity war-related injuries. Experience of the French Military Health Service (FMHS).

Lower extremity war wounds are characterized by high-energy trauma occasioning loss of complex and pluritissular substances. The support pipeline put into place by the French defense health service (SSA) is designed to rapidly evacuate the injured person from the scene of injury to mainland France, following initial surgery in the framework of a sequential tactic known as "Damage Control Surgery". This strategy is aimed at stabilizing the traumatized individual and enabling his evacuation. Patients are subsequently treated in a restorative surgery unit in a Hôpital d'Instruction des Armées (HIA), a level 1 trauma center (HIA Percy, HIA Saint-Anne) Cooperation between the plastic and orthopedic surgery specialties is essential insofar as it allows for surgical optimization aimed at saving the limb while restoring function to the greatest possible extent. Notwithstanding painstaking application of this common strategy, septic pseudoarthrosis remains the principal and most feared complication, at times rendering impossible any therapeutic solution other than amputation. Whether prosthetic or non-prosthetic, the rehabilitation provided by doctor/physiotherapists is conducive to patients' social and professional reintegration. The nation's duty to assist its wounded veterans is carried out with determination by the French defense ministry. As concerns lower extremity war wounds, the authors detail the reconstruction doctrine based on the 6/7/8/9 rule, in accordance with which strategies for repair of soft tissue and reconstruction of the lost bone substance have been developed.

[Urinary tract infections in adults: Comparison of the French and the European guidelines]. / Infections urinaires de l'adulte : comparaison des recommandations françaises et européennes. Par le Comité d'infectiologie de l'Association française d'urologie (CIAFU).

INTRODUCTION: Acute urinary tract infections (UTIs) in adult are now a major public health issue in terms of morbidity, mortality and in terms of costs for society. The latest French guidelines and the European Association of Urology guidelines differ in some points. The aim of this article is to compare the guidelines of these two societies in order to highlight their differences but also their common points in the management of UTIs. METHODS: A comparative analysis of the latest French and European guidelines was carried out. The authors defined the following sub-sections: terminology, pyelonephritis, male UTIs, pregnancy urinary tract infections and cystitis. RESULTS AND CONCLUSION: The guidelines of these two societies are not very different in terms of diagnostic and therapeutic management. The major differences are in the duration of antibiotic therapies, where French guidelines continue to recommend long term treatments where EAU sometimes recommends only 5 days of antibiotics, as in the case of simple acute pyelonephritis. LEVEL OF EVIDENCE: 3.

Complex upper arm reconstruction using an antero-lateral thigh free flap after an extravasation of Yttrium-90-ibritumomab Tiuxetan: A case report and literature review.

Yttrium-90-Ibritumomab Tiuxetan (Zevalin®) is used in the treatment of non- Hodgkin's lymphoma. Extravasation is an iatrogenic complication that is fortunately rare. However, the treatment of this complication is often complex due to the risk of extensive skin necrosis and unpredictable evolution of localized irradiation. This vesicant drug requires emergency management when extravasation occured. Radiations burns have specificities. Therefore, wound coverage involves specific plastic surgical techniques. Here, we report the case of a man presenting a chronic and extensive skin necrosis of upper arm treated with an antero-lateral thigh free flap. Moreover, we compare our experience of Zevalin® extravasation management to other past publications and propose recommendations to prevent this unacceptable complication.

Open prostatectomy versus 180-W XPS GreenLight laser vaporization: Long-term functional outcome for prostatic adenomas>80 g.

INTRODUCTION: GreenLight photoselective vaporisation of the prostate (PVP) offers an endoscopic alternative to open prostatectomy (OP) for treatment of large adenomas. This study compares long-term functional outcome of both techniques in patients with Benign prostatic obstruction (BPO)>80g. MATERIAL AND METHOD: Data from patients who underwent surgical treatment for BPO>80g from January 2010 to February 2015 at our institution were retrospectively collected and compared according to surgical technique. Patient's demographics, surgeon's experience, operative data and long-term functional results were analyzed, using IPSS and International continence society (ICS) male questionnaire associated with Quality of life scores (IPSS-QL and ICS-QL). Predictors of long-term outcome were also assessed. RESULTS: In total, 111 consecutive patients, 57 PVP and 54 OP, were included in the study with a mean follow-up of 24 and 33 month respectively. Patient's age, Charlson score, preoperative IPSS and urinary retention rates were similar. Mean prostatic volume was superior in the OP group (142 versus 103g, P<0.001). Transfusion rate was lower after PVP (P=0.02), despite a more frequent anticoagulant use. Length of hospital stay and urinary catheterization were shorter after PVP (P<0.001), with however a higher rate of recatheterization (RR=4.74) and rehospitalization (RR=10.42). Long-term scores were better after OP for IPSS (1 versus 5, P<0.001), IPSS-QL, ICS, ICS-QL. On multivariate analysis, prostatic residual volume was the only predictor of long-term IPSS but not ICS. CONCLUSION: Long-term functional outcome are better after OP compared to PVP. However, PVP offers good results, allowing to safely operate patients taking anticoagulants, regardless of prostatic volume. Endoscopic enucleation may the compromise between both techniques. LEVEL OF EVIDENCE: 4.

[Anterolateral thigh flap for distal lower leg reconstruction]. / Place du lambeau libre antérolatéral de cuisse dans la reconstruction des pertes de substance distales des membres inférieurs.

CONTEXT: Soft tissue defects of lower leg are still a challenge for the plastic surgeon. It should provide an effective and functional coverage with a minimal morbidity on the donor site. Free anterolateral thigh flap present in these areas many advantages over the pedicled local flaps and free muscle flaps used conventionally. We try to define its place through our experience with a bicentric retrospective study. MATERIALS AND METHODS: A retrospective analysis of all cases of reconstruction of the lower leg using the free ALT flap was performed in two centers of reconstructive surgery. The characteristics of the defect and reconstructions were collected. The rate of success and complication has been reported as well as long term aesthetic and functional outcomes. RESULTS: Forty-one patients were reconstructed between 2008 and 2013 for post-traumatic care in 58.5% of cases. The average size of the defect was 191.4cm2, their location was mainly on the foot and ankle (61%) and bone exposure was most frequently found (82.9%). Success rate was 92.8%. Functional results were judged as very good and good in 75.5% of cases and aesthetic results as very good and good for 63.6% of cases. Three "lost sight" 7.3% and 3 fails (7.3%) patients were not included in the result analysis. CONCLUSION: Showing functional results at least similar to other flaps, ALT flap demonstrated its reliability and its low morbidity on the donor site. Its versatility allows adaptation to the vast majority of defects of the lower leg.

[Congenital undescended testis: Should open processus vaginalis have any impact on the elected surgical approach?] / Cryptorchidie : la présence d'un canal péritonéo-vaginal perméable devrait-elle influer dans le choix de la technique chirurgicale ?

PURPOSE: Compare the position of the undescended testis at clinical examination and under general anesthesia with the patency of an open processus vaginalis. PATIENTS AND METHODS: We included children from 2 to 18 years of age operated for a unilateral or bilateral undescended testis between January 2006 and April 2014 at the Annecy Genevois hospital, France. The analysis was conducted considering that the individual was the testis. Testicular position before surgery, under general anesthesia and patency of open processus vaginalis as a surgical finding were prospectively recorded. RESULTS: Three hundred and six children were included. The analysis was conducted over 401 testes. The position at clinical examination was significantly linked to a persistent open processus vaginalis (P=0.0045). Over the 282 testes considered as candidate for Bianchi's procedure, as to say intra- or supra-scrotal under general anesthesia, 154 had a persistent processus vaginalis (55%). CONCLUSION: There is a link between a persistent processus vaginalis and the location of the undescended testis which should encourage us not to neglect the inguinal approach, and eventually to question the relevance of Bianchi's procedure. LEVEL OF EVIDENCE: 4.

[Lower urinary tract dysfunction in normal pressure hydrocephalus: Review of the literature]. / Troubles vésico-sphinctériens dans l'hydrocéphalie à pression normale : revue de la littérature.

INTRODUCTION: Lower urinary tract dysfunction in normal pressure hydrocephalus has received little attention from the scientific community. The aim of this review article was to discuss diagnostic and therapeutic options for these patients. SOURCES: A literature review of MedLine publications on urinary incontinence in normal pressure hydrocephalus was conducted. The following keywords were used: "hydrocephalus, normal pressure" and "bladder dysfunction" or "urinary incontinence" or "overactive bladder" or "urinary bladder, neurogenic". Prospective and retrospective studies as well as previous reviews were analyzed. RESULTS: Urinary symptoms in normal pressure hydrocephalus are mainly represented by overactive bladder, which is a significant burden for the concerned patients. Isolated overactive bladder is more frequent (64%) than urinary incontinence (57%). Detrusor overactivity is seen in 95.2% of the cases. Neuro-surgery is efficient on urinary symptoms for 61.5% of the patients. Bladder recovery after surgery relates with increased mid-cingulate perfusion, probably linked with a functional restoration of the mid-cingulate that normally inhibits the micturition reflex. Medical options, added or not to surgery, include anticholinergic drugs unable to pass through the blood-brain barrier, Transcutaneous Electrical Nerve Stimulation and sacral neuromodulation. CONCLUSION: There is actually an insufficient concern about urinary symptoms in normal pressure hydrocephalus. This article highlights the importance of a harmonization of neuro-urological practices in the pre-therapeutic evaluation of patients suffering from normal pressure hydrocephalus.

Access to information and expectations of treatment decisions for prostate cancer patients--results of a European survey.

We surveyed patients in France, Germany, Italy, Spain and Poland to examine information requirements and expectations of patients with prostate cancer. Patients were identified via their healthcare teams or via existing databases and interviewed by telephone, or in face-to-face interviews (Italy). Survey questions were either multiple choice or rank-based, and additional information was available to assist patient comprehension. Overall, 80% of patients received information about prostate cancer at diagnosis and 76% rated their physician as the most useful information source. However, around a third of French and German patients did not receive any information about their condition at diagnosis, compared with 8%, 12% and 10% of Spanish, Italian and Polish patients, respectively. Most patients rated the information they received as 'very informative', but there were regional variations, with German patients being the least satisfied with the quality of information received. Despite receiving the least amount of information at diagnosis, more patients from France and Germany preferred to be involved in treatment decisions than patients from Spain, Italy and Poland. Results from this survey highlight important gaps in information provision for patients with prostate cancer in terms of information supplied and patient expectations regarding treatment decisions.

MRI assessment of local acute radiation syndrome.

OBJECTIVES: To describe local acute radiation syndrome and its radiological imaging characteristics. METHODS: We performed a retrospective study of patients who had suffered skin and deeper radiation damage who were investigated by magnetic resonance imaging (MRI). We compared the clinical findings, C-reactive protein (CRP) levels and MRI results. RESULTS: A total of 22 MRI examinations were performed between 2005 and 2010 in 7 patients; 6 patients had increased CRP levels and MRI abnormalities. They were treated by surgery and local cellular therapy. One patient had no CRP or MRI abnormalities, and had a spontaneous good outcome. Eighteen abnormal MR examinations demonstrated high STIR signal and/or abnormal enhancement in the dermis and muscle tissues. Three MRI examinations demonstrated skeletal abnormalities, consistent with radionecrosis. The four normal MRI examinations were associated only with minor clinical manifestations such as pain and pigmentation disorders. CONCLUSION: MRI seems to be a useful and promising imaging investigation in radiation burns management i.e. initial lesion evaluation, treatment evaluation and complication diagnosis. MRI findings correlated perfectly with clinical stage and no false negative examinations were obtained. In particular, the association between normal MRI and low CRP level seems to be related to good outcome without specific treatment. KEY POINTS: Local acute radiation syndrome (radioepidermitis) mainly affects the skin and superficial tissues. MRI findings correspond with clinical stage (with a strong negative predictive value). MRI outperformed X-ray examination for the diagnosis of bone radionecrosis. Diffusion-weighted imaging shows low ADC in bone and soft tissue necrosis. Perfusion sequence allows assessment of tissue microcirculation impairment.

[Present and future of cell therapy in burns]. / Présent et futur de la thérapie cellulaire des brûlures.

Severe burned patients need definitive and efficient wound coverage. Outcome of massive burns has been improved by using cultured epithelial autografts (CEA). Despite fragility, percentages of success take, cost of treatment and long-term tendency to contracture, this surgical technique has been developed in few burn centres. First improvements were to combine CEA and dermis-like substitute. Cultured skin substitutes provide earlier skin closure and satisfying functional result. These methods have been used successfully in massive burns. Second improvement was to allow skin regeneration by using epidermal stem cells. Stem cells have capacity to differentiate into keratinocytes, to promote wound repair and to regenerate skin appendages. Human mesenchymal stem cells contribute to wound healing and were evaluated in cutaneous radiation syndrome. Skin regeneration and tissue engineering methods remain a complex challenge and offer the possibility of new treatment for injured and burned patients.