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Affiliation(s)
- A Limbourg
- Department of Plastic, Hand and Reconstructive Surgery, Hannover, Lower Saxony, 30625, Germany.
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Gohritz A, Dellon LA, Guggenheim M, Spies M, Steiert A, Vogt PM. Otfrid Foerster (1873-1941)--self-taught neurosurgeon and innovator of reconstructive peripheral nerve surgery. J Reconstr Microsurg 2012. [PMID: 23203314 DOI: 10.1055/s-0032-1326737] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Otfrid Foerster (1873-1941) became a self-taught neurosurgeon during and after WW I, playing a critical role in the development of peripheral nerve reconstruction. Although best known for describing dermatomes, he published over 300 articles on the nervous system. Confronted by thousands of nerve injuries during WW I, as well as poor results and disinterest from his surgical colleagues, Foerster began performing neurolysis and tension-free nerve repairs himself under emergency conditions. He pioneered grafting motor nerve defects by expendable cutaneous nerves (e.g., sural) and performed intraplexal neurotizations and various nerve transfers, such as the pectoral, subscapular, long thoracic, and thoracodorsal nerves in brachial plexus injuries. Foerster championed rehabilitation, recognizing the potential of electrostimulation and physiotherapy to influence cortical reorganization (brain plasticity) and improve recovery after nerve injury. Foerster died from tuberculosis in 1941, leaving a rich reconstructive peripheral nerve legacy; his innovative and visionary spirit serves as a role model.
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Affiliation(s)
- Andreas Gohritz
- Department of Plastic, Hand and Reconstructive Surgery, Medizinische Hochschule, Hannover, Germany.
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Steiert A, Reimers K, Burke W, Zapf A, Vogt P. Covalent vectored binding of functional proteins by bifunctional crosslinking at silicone interfaces. J Biomed Mater Res A 2012; 100:1248-55. [DOI: 10.1002/jbm.a.34008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Revised: 10/06/2011] [Accepted: 10/27/2011] [Indexed: 11/09/2022]
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Herold C, Steiert A, Knobloch K, Busche MN, Altintas MA, Vogt PM. Angiographic findings in patients with postoperative soft tissue defects following total knee arthroplasty. Knee Surg Sports Traumatol Arthrosc 2011; 19:2045-9. [PMID: 21611782 DOI: 10.1007/s00167-011-1532-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Accepted: 04/28/2011] [Indexed: 12/17/2022]
Abstract
PURPOSE A postoperative defect of the surrounding soft tissue is one main risk factor for implant exposure and infection following total knee arthroplasty (TKR). The main factors that promote infection, tissue ischemia, and hypoxia are strongly associated with arterial insufficiency and the prevalence of impaired peripheral perfusion. We hypothesized that vascular malperfusion is the predisposing reason for soft tissue complications following TKR necessitating plastic reconstructive surgery. METHODS A retrospective chart review was made among patients (n = 12) with soft tissue defects due to wound infection following a total knee arthroplasty referred to plastic reconstructive surgery. All patients presented with an exposed implant, and angiographic imaging was performed prior to reconstructive procedures. RESULTS Eight out of twelve patients (67%) had a pathological vascular status. In three of these patients, interventional procedures were performed to ameliorate perfusion. In ten patients (83%), the defect was covered with a plastic reconstructive regional or free tissue transfer. Four patients received a free latissimus dorsi flap and six patients a pedicled a gastrocnemius muscle flap. In one patient, a secondary wound closure was needed after knee arthrodesis and an amputation was performed in another patient due to a multiresistant staphylococcus aureus infection and massive tissue destruction at the time of admission. CONCLUSIONS We suggest to rule out peripheral occlusive disease among patients undergoing TKR at best prior to orthopedic surgery using pulses and, if in doubt ankle-brachial index and doppler sonography Consequently, if vascular occlusions are then confirmed by angiography, dilatation and stenting or revascularization should be performed, to ameliorate perfusion.
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Vogt PM, Gohritz A, Haubitz M, Steiert A. Reconstruction of nasal deformity in Wegener's granulomatosis: contraindication or benefit? Aesthetic Plast Surg 2011; 35:156-61. [PMID: 20835824 DOI: 10.1007/s00266-010-9568-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2010] [Accepted: 07/22/2010] [Indexed: 10/19/2022]
Abstract
BACKGROUND Saddle-nose deformity is a well-recognized stigma of patients affected by Wegener granulomatosis (WG). However, plastic surgical repair is seldom performed. In this study, the authors aimed to evaluate their own patients exclusively reconstructed by costal cartilage L-strut of the nose for this specific deformity. METHODS During a 5-year-period, four women with an average age of 33 years underwent reconstructive rhinoplasty of their saddle-nose deformity caused by WG, which in every case was in remission regarding the nose at the time of surgery. Restoration of the nasal framework was performed by an L-shaped rib cartilage graft. RESULTS The external form and function of the newly reconstructed nose was preserved during an average follow-up period of 42 months for all the patients. No resorption of the rib cartilage graft was observed. A review of the literature found a total of 22 nasal reconstructions for patients affected by WG. CONCLUSION According to this patient series and a review of the literature, external nasal reconstruction for patients affected by WG appears to be safe and effective if the disease is in remission before any operation. Despite concern that high-dose immune suppression therapy may increase the risk of failure in primary nasal dorsal repair, this could not be observed in the patients of this series, all of whom were receiving immunosuppressive medication. Therefore, nasal reconstruction to improve the physical appearance and thus the psychological well-being of these chronically ill patients seems to be justified.
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Herold C, Gohritz A, Meyer-Marcotty M, Steiert A, Jokuszies A, Vaske B, Vogt P. Is There an Association between Comorbidities and the Outcome of Microvascular Free Tissue Transfer? J Reconstr Microsurg 2010; 27:127-32. [DOI: 10.1055/s-0030-1268851] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Knobloch K, Steiert A, Kramer R, Vogt PM. eComment: Assessment of sternal scars following coronary artery bypass grafting. Interact Cardiovasc Thorac Surg 2010; 10:564. [PMID: 20335393 DOI: 10.1510/icvts.2009.222190a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Karsten Knobloch
- Hannover Medical School, Plastic, Hand and Reconstructive Surgery, Hannover, Germany
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Herold C, Jokuszies A, Steiert A, Vogt P, Wünsche G, Vaske B, Spies M. C-reactive protein is not a reliable marker of infection in flap reconstructive procedures of lower extremities. J Plast Reconstr Aesthet Surg 2009; 62:e670-1. [DOI: 10.1016/j.bjps.2008.11.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2008] [Revised: 10/08/2008] [Accepted: 11/13/2008] [Indexed: 10/21/2022]
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Niederbichler A, Jokuszies A, Peters T, Steiert A, Knobloch K, Busch K, Vogt P. Extracorporeal life support devices (ECMO, ILA) in severely burned patients: Bridging the gap? Burns 2009. [DOI: 10.1016/j.burns.2009.06.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
The surgical management of defects in the pelvic region is a great surgical challenge. Primary tumor recurrences have to be addressed and local infections require appropriate therapy such as rigorous debridement and antibiotic therapy. Plastic surgery provides tissue reconstruction by well perfused flaps and also reestablishment of anatomic structures in the ano-genital region. An early reconstruction also reduces the wound complications of adjuvant or post oncologic therapy and reduces the rate of wound healing problems.
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Affiliation(s)
- P M Vogt
- Klinik für Plastische, Hand- und Wiederherstellungschirurgie, der Medizinischen Hochschule Hannover, Univ.-Prof. Dr. med. P. M. Vogt, Carl-Wiechert-Allee 1, 30625 Hannover.
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Wenger FA, Kilian M, Mautsch I, Jacobi CA, Steiert A, Peter FJ, Guski H, Schimke I, Müller JM. Influence of octreotide on liver metastasis and hepatic lipid peroxidation in BOP-induced pancreatic cancer in Syrian hamsters. Pancreas 2001; 23:266-72. [PMID: 11590322 DOI: 10.1097/00006676-200110000-00007] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION In prospective clinical trials, octreotide improved quality of life and survival time in patients with pancreatic cancer. AIMS To analyze whether octreotide modulates the hepatic oxygen radical metabolism and thus might decrease liver metastasis in an animal model of pancreatic cancer. METHODOLOGY Syrian hamsters received 0.9% NaCl or N-nitrosobis(2-oxopropyl)amine (BOP) for 3 months. Therapy was performed for 12 weeks by 0.9% NaCl or octreotide. Hamsters received a standard diet (3.5% fat) or were fed a high-fat diet (21.4% fat). In the 25th week, the pancreas and liver were examined macroscopically and histologically. The level of lipid peroxidation and activities of glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) were determined intrahepatically. RESULTS The number of liver metastases per animal and the size of liver metastases were increased by the high-fat diet, whereas they were decreased by octreotide. Octreotide increased activities of GSH-Px and SOD. The concentration of thiobarbituric acid reactive substances was increased by BOP and a high-fat diet and decreased by octreotide. CONCLUSION Octreotide decreases the number and size of liver metastases in chemically induced pancreatic cancer in Syrian hamsters. This is accompanied by high hepatic GSH-Px and SOD activity and a low level of lipid peroxidation.
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Affiliation(s)
- F A Wenger
- Department of General, Visceral, Vascular and Thoracic Surgery, Humboldt-University of Berlin, Germany.
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Abstract
BACKGROUND Due to a low survival rate even after a R0 resection of cancer of the head of the pancreas, a strict indication for a pancreaticoduodenectomy seems to be sensible. We have therefore analyzed our patients for possible prognosis factors. METHODS In a retrospective trial the courses of disease of all patients (1981-1996) with resected histologically proven carcinoma of the head of the pancreas were analyzed. The following patient-specific parameters were evaluated and examined in a single or multivariate analysis of prognosis factors: age, gender, tumor size (T status), lymph node involvement (N status), dimension of resection, operation method, time of operation, morbidity, clinic lethality and survival rate. RESULTS Between 1981 and 1996, 500 patients with ductal adenocarcinoma of the head of the pancreas were treated surgically. The rate of resection increased from 32.1% (1981-1986) to 37.8% (1991-1996) whereas the mortality rate decreased from 13.3 to 7.3%. The 5-year survival rate after resection was 11.8% with a median survival time of 13.8 months. In a multivariate analysis, only small tumors (T1, p < 0.016), the R0 status (p < 0.017) and the resection had a significant influence on the survival rate. CONCLUSION Prognosis factors in the treatment of pancreatic cancer were tumor size (T1), tumor resection and R0 status.
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Affiliation(s)
- F A Wenger
- Department of Surgery, Charité, Humboldt University, Berlin, Germany
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Wimmenauer S, Steiert A, Wolff-Vorbeck G, Xing B, Baier PK, Rückauer KD, Kirste G, von Kleist S. Influence of cytokines on the expression of fas ligand and CD44 splice variants in colon carcinoma cells. Tumour Biol 1999; 20:294-303. [PMID: 10567875 DOI: 10.1159/000030093] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The expression of Fas ligand (FasL) by malignant cells might be a mechanism for tumor immune escape. We investigated FasL expression by LS 174T colon carcinoma cells. Furthermore, the effects of in vitro stimulation with rIL-2, rIFN-gamma and rTNF-alpha were investigated with regard to a possible regulation of the FasL expression by cytokines. FasL expression was detected by flow cytometry and RT-PCR. We observed a spontaneous expression of FasL by LS 174T cells. Incubation with high-dose rTNF-alpha induced an upregulation of FasL of 23%. rIL-2 and rIFN-gamma did not significantly affect FasL expression. To control whether our cytokine stimulation experiments were suitable to prove an upregulation of membrane proteins by tumor cells, we investigated the expression of ICAM-1, N-CAM, CD44s, CD44v6 and CD44v10. These adhesion molecules were spontaneously expressed by LS 174T cells. Only ICAM-1 and CD44v10 were significantly upregulated by rIFN-gamma and rTNF-alpha, respectively. These results could indicate that cytokines, released by tumor-infiltrating leukocytes, may induce the FasL-dependent apoptotic signal by which tumors downregulate an immunological host response.
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Affiliation(s)
- S Wimmenauer
- Department of General Surgery, University Hospital Freiburg, Germany
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Wimmenauer S, Baier PK, Steiert A, Rückauer KD, Farthmann EH. [Cytokine regulated expression of Fas-Ligand by colon carcinoma cells]. Langenbecks Arch Chir Suppl Kongressbd 1999; 115:1470-3. [PMID: 9931915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
We studied the proliferative response of tumor-infiltrating lymphocytes (TIL) from colorectal carcinomas to rIL-2 as well as their cytotoxic activity which was reduced as compared to autologous peripheral blood lymphocytes. We observed TIL to be polyclonal and asked if Fas-ligand-expressing tumor cells are responsible for the elimination of specific T-cells. Therefore we studied the expression of Fas-ligand by LS174T colon carcinoma cells which we showed to be induced by cytokines.
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Affiliation(s)
- S Wimmenauer
- Abteilung Allgemeine Chirurgie mit Poliklinik, Universitätsklinik Freiburg
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Abstract
Six German families segregating for Myotonia congenita (MC) and eight families from Germany and Great Britain with Paramyotonia congenita (PC) were tested for linkage relationships using 35 serological and biochemical markers. No linkage of MC to any of the markers was evident, but a positive sum of lod scores for PC vs. the HP locus (z = 1.16, theta = 0.16) was found. The results encourage further investigations involving chromosome 16 markers.
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Affiliation(s)
- K Bender
- Institut für Humangenetik und Anthropologie, Universität Freiburg, FRG
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Bender K, Bissbort S, Crone H, Senff H, Steiert A, Neumann H, Koch M, Nagel M, Wienker TF. Linkage relations of JK, CO, KEL and IGK with each other and with AHCY. Hum Hered 1988; 38:12-7. [PMID: 3127321 DOI: 10.1159/000153747] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Linkage analyses of locus pairs involving IGK, JK, CO, KEL and AHCY resulted in altogether negative lod scores, thereby dwindling the reported linkage relations.
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Affiliation(s)
- K Bender
- Institut für Humangenetik and Anthropologie, Universität Freiburg, FRG
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