Philip Kasten

Technische Universität Dresden, Dresden, Saxony, Germany

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Publications (116)234.59 Total impact

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    ABSTRACT: Total shoulder arthroplasty (TSA) can improve function in osteoarthritic shoulders, but the ability to perform activities of daily living (ADLs) can still remain impaired. Routinely, shoulder surgeons measure range of motion (ROM) using a goniometer. Objective data are limited, however, concerning functional three-dimensional changes in ROM in ADLs after TSA in patients with degenerative glenohumeral osteoarthritis.
    BMC Musculoskeletal Disorders 07/2014; 15(1):244. · 1.90 Impact Factor
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    ABSTRACT: Reverse total shoulder arthroplasty (RSA) can improve function in cuff tear arthropathy (CTA) shoulders, but limited exact data are available about the maximum values in 3D motion analysis, and as to how improvements translate into the normal range of motion (ROM) in activities of daily living (ADLs).
    Archives of Orthopaedic and Trauma Surgery 06/2014; 134(8). · 1.31 Impact Factor
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    ABSTRACT: The study aimed to investigate the prognosis of osteochondral affection (e. g., osteochondritis dissecans (OCD), cartilage lesions, fractures and bone edema in the elbows of high-performance gymnasts (n=30) compared to prognosis results with athletes not undergoing excessive stress on the upper extremity (n=29). The study also tested a novel isotropic 3D-FSE-sequence (CUBE) technique as an early diagnostic modality. Standard protocol was used to conduct the MRI examinations, which were then compared to results from the CUBE - sequence. The gymnast group (p=0.012) presented a significantly higher prevalence of complaints in the elbow joint compared to the other athlete group. Furthermore, osteochondral lesions in MRIs appeared more frequently in the group of gymnasts (n=10, 33%, p=0.033), including 7 cases (23%) of OCD. In the control athlete group 2 asymptomatic cases of OCD and one case of bone edema were detected. The MRI investigation with the CUBE - sequence showed similar results as the standard MRI protocol in terms of the diagnosis sensitivity. The current study indicates that juvenile gymnasts are at a higher risk for osteochondral lesions of the elbow than athletes without excessive stress on the upper extremities.
    International Journal of Sports Medicine 05/2014; · 2.37 Impact Factor
  • J Dexel, C Kopkow, P Kasten
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    ABSTRACT: A key element for movement of the arm is the position and motion of the scapula. A stable basis for efficient arm function is only possible if the scapula makes three dimensional movements coordinated with the upper arm. This article presents a discussion of causes, diagnosis and therapy options for scapular dyskinesis. The article is based on a literature search in the PubMed database and taking own experience into account. Soft tissue and bony injuries, muscle insufficiency and dysbalance can alter the position and function of the scapula. This pathological position and motion is called scapular dyskinesis. This clinically presents as a prominent medial border and malrotation (lacking external rotation and posterior tilt) of the scapula when raising the arm. The clinical examination includes a visual inspection followed by clinical tests of the scapula at rest and during movement. Specific exercises of the musculature surrounding the scapula and specific techniques for schooling the senses for positioning and movement can harmonize the sequence of movements and restore the dynamic scapular stability. A conservative stepwise and stage-adapted exercise program can be used to treat scapular dyskinesis with good results.
    Der Orthopäde 03/2014; · 0.51 Impact Factor
  • J. Dexel, C. Kopkow, P. Kasten
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    ABSTRACT: Die Skapula hat eine zentrale Funktion beim Bewegungsablauf des Arms. Sie kann nur dann als stabile Basis für eine effiziente Armfunktion dienen, wenn sie eine mit dem Oberarm koordinierte, dreidimensionale Bewegung durchführt.Darstellung der Ursachen, Diagnostik und Therapieempfehlungen der skapulothorakalen Dysbalance bei Überkopfsportlern.Diese Arbeit basiert auf einer Literaturrecherche in der Datenbank PubMed und der Berücksichtigung eigener Erfahrungen.Die Skapulaposition kann durch knöcherne und weichteilige Verletzungen, Muskelinsuffizienzen und -dysbalancen beeinflusst werden. Die veränderte Position bzw. Bewegung wird als Skapuladyskinesie bezeichnet. Sie imponiert klinisch durch ein Abheben des medialen Randes der Skapula und durch eine Fehlrotation (fehlende Außenrotation und posteriore Kippung) beim Bewegen des Arms. Die klinische Untersuchung beinhaltet eine optische Prüfung gefolgt von klinischen Tests der Skapula in Ruhe und bei Bewegung. Durch gezieltes Beüben der Muskulatur, die die Skapula umgibt, sowie durch gezielte Techniken zur Schulung des Positions- und Bewegungssinns kann eine verbesserte Positionierung und Bewegung des Schulterblatts erlernt werden.Skapuläre Muskeldysbalancen können im Rahmen eines konservativen stufenförmigen Trainingsprogramms stadienadaptiert mit gutem Erfolg behandelt werden.
    Der Orthopäde 03/2014; 43(3). · 0.67 Impact Factor
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    ABSTRACT: Low back pain (LBP) is a common symptom in the populations of western countries, and adolescent athletes seem to be prone to LBP. The main objective of this study was to analyze the point (LBP within the last 48 h), 1-year (LBP within the last 12 months) and lifetime (LBP within the entire life) prevalence rates of LBP in adolescent athletes participating in various sports. We also assessed the characteristics of LBP and its association with potential risk factors. To this end, 272 competitive adolescent athletes involved in 31 different sports (158 males, 113 females, 15.4±2.0 years, body mass index [BMI] 20.3±2.4 kg/m2) were enrolled in a 10-month prospective clinical trial that included a questionnaire and physical examination. We found a point prevalence of 14%, a 1-year prevalence of 57%, and a lifetime prevalence of 66% for LBP. The mean age of first appearance of LBP was 13.1±2.0 years. The lifetime prevalence was significantly higher in volleyball than in biathletes (74.3 vs. 45.7%, p=0.015). Our findings confirm that LBP is a common symptom in adolescent athletes; LBP prevalence correlates with sports participation and individual competitive level. Adolescent athletes with LBP should receive a thorough diagnostic work-up and adapt training and technique correspondingly when indicated.
    International Journal of Sports Medicine 01/2014; · 2.27 Impact Factor
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    ABSTRACT: Die autologe Chondrozytentransplantation (ACT) hat sich seit ihrer Einführung in den klinischen Alltag zu einem Standardverfahren zur Behandlung von großen umschriebenen Knorpeldefekten im Kniegelenk etabliert. Trotz der zunehmenden Ausweitung des Verfahrens bestehen noch viele Fragen hinsichtlich der optimalen postoperativen Therapie. Ziel unserer Untersuchung war eine Bestandserhebung der Nachbehandlung bei den Mitgliedern der AG Klinische Geweberegeneration und basierend auf den Ergebnissen die Erstellung einer Empfehlung auf der Basis einer Expertenmeinung (Level IVb nach EBM).Alle Mitglieder der AG Klinische Geweberegeneration wurden anhand eines standardisierten Fragebogens zu Nachbehandlungsschemata, Nachsorgeuntersuchungen und Empfehlungen zur Wiederaufnahme der sportlichen Betätigung nach ACT am Kniegelenk befragt.Keiner der Befragten wendete die konventionelle ACT mit der Periostlappenplastik an, alle verwenden zellbesiedelte Matrices (MACT). 94% der Befragten wenden in Abhängigkeit von der Lage des Defekts (femoral vs. patellar) spezifische Belastungs- und Bewegungseinschränkungen an. Die breiteste Übereinstimmung fand sich bei der Entlastung für durchschnittlich 6 Wochen nach femoraler MACT (78%). Hinsichtlich der Behandlung nach patellarer MACT variierten die Angaben zum Belastungsaufbau und der Bewegungslimitierung am stärksten. Regelmäßige postoperative MRT-Kontrollen werden durchgeführt, jedoch waren auch diese in Bezug auf Zeitpunkt und angewendete MRT-Sequenz starken Variationen unterworfen. Routinemäßige Second-look-Arthroskopien werden nicht durchgeführt. Circa 75% der Operateure empfehlen ihren Patienten eine Sportkarenz für 6–12 Monate nach MACT. Am häufigsten werden knieschonende Sportarten wie Radfahren (94%), Schwimmen (83%) oder Nordic Walking (44%) empfohlen.Klare Nachbehandlungsschemata existieren bisher nicht, obgleich eine Übereinstimmung zu elementaren Fragen wie der lokalisationsabhängigen differenzierten Bewegungseinschränkung und Belastung besteht. Die Magnetresonanztomographie (MRT) besitzt eine zentrale Rolle bei der routinemäßigen Nachkontrolle, aber auch hier liegen erheblich Unterschiede bei der Durchführung vor. Es bedarf einer weiteren Verbesserung der Empfehlungen zur Nachbehandlung nach MACT am Kniegelenk, um einen Standard zu entwickeln, der den behandelnden Ärzten Sicherheit gibt und einen besseren Vergleich der Ergebnisse nach MACHT zwischen verschiedenen Patientengruppen ermöglicht.
    Der Unfallchirurg 01/2014; 117(3). · 0.61 Impact Factor
  • Gait & Posture 11/2013; 38:S31-S32. · 2.30 Impact Factor
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    ABSTRACT: Associated with the trend towards increased health consciousness and fitness, triathlon has established itself as a sport for the masses. The goals of this study were to evaluate injury risk factors of non-professional triathletes and to compare prospective and retrospective evaluation methods. Using an online survey, 212 triathletes retrospectively answered a questionnaire about their training habits and injuries during the past 12 months. Forty-nine of these triathletes participated in a 12-month prospective trial. Injuries were classified with regard to the anatomical location, type of injury, incidence and associated risk factors. Most injuries occurred during running (50%) followed by cycling (43%) and swimming (7%). Fifty-four per cent (retrospective) and 22% (prospective) of the injuries were contusions and abrasions, 38% (retrospective) and 46% (prospective) were ligament and capsular injuries, 7% (retrospective) and 32% (prospective) were muscle and tendon injuries and 1% (retrospective) and 0% (prospective) were fractures. The incidence of an injury per 1000 training hours was 0.69 (retrospective) and 1.39 (prospective) during training and 9.24 (retrospective) and 18.45 (prospective) during competition. The main risk factor for injury in non-professional triathlon is participation in a competitive triathlon event. A retrospective design may underestimate the rate of overuse injuries.
    Journal of Sports Sciences 10/2013; · 2.08 Impact Factor
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    ABSTRACT: Associated with the trend towards increased health consciousness and fitness, triathlon has established itself as a sport for the masses. The goals of this study were to evaluate injury risk factors of non-professional triathletes and to compare prospective and retrospective evaluation methods. Using an online survey, 212 triathletes retrospectively answered a questionnaire about their training habits and injuries during the past 12 months. Forty-nine of these triathletes participated in a 12-month prospective trial. Injuries were classified with regard to the anatomical location, type of injury, incidence and associated risk factors. Most injuries occurred during running (50%) followed by cycling (43%) and swimming (7%). Fifty-four per cent (retrospective) and 22% (prospective) of the injuries were contusions and abrasions, 38% (retrospective) and 46% (pro- spective) were ligament and capsular injuries, 7% (retrospective) and 32% (prospective) were muscle and tendon injuries and 1% (retrospective) and 0% (prospective) were fractures. The incidence of an injury per 1000 training hours was 0.69 (retrospective) and 1.39 (prospective) during training and 9.24 (retrospective) and 18.45 (prospective) during competition. The main risk factor for injury in non-professional triathlon is participation in a competitive triathlon event. A retrospective design may underestimate the rate of overuse injuries.
    Journal of Sports Sciences 10/2013; · 2.08 Impact Factor
  • J. Dexel, C. Kopkow, Philip Kasten
    [Show abstract] [Hide abstract]
    ABSTRACT: A key element for movement of the arm is the position and motion of the scapula. Only if the scapula performs a coordinated three dimensional movement with the upper limp, a stabile basis for the arm movement is created. Soft tissue and bony injuries, muscle insufficiencies and dysbalancies can alter the position and function of the scapula. The pathologic position and motion is called scapula dyskinesis. The clinical examination presents with a lift of the medial border and malrotation (missing external rotation and posterior tilt) of the scapula during raising the arm. Scapula dyskinesis can be found at asymptomatic patients, too. Furthermore, it can be an unspecific reaction secondary to shoulder pathologies and it is not associated with a specific glenohumeral pathology. The clinical examination includes the visualization of the scapula at rest and in motion followed by specific clinical tests. Specific excercises may harmonize the sequence of movements and restore the dynamic scapular stability. A stepwise exercise program starts with core stabilization, followed by stabilization exercises and translational motion exercises of the scapula without movement in the shoulder. When these exercises can be performed without pain, dynamic stabilization exercises and finally sports specific exercises are added.
    Deutsche Zeitschrift für Sportmedizin 09/2013; 64(9):267-272. · 0.58 Impact Factor
  • Philip Kasten, Christian Kopkow, Julian Dexel
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    ABSTRACT: A key element for a harmonic movement of the arm is the position and motion of the scapula. A pathologic position and movement of the scapula what is called scapula dyskinesia may irritate the tendons and cause pain in high performing athletes. Scapula dyskinesia, however, may also occur in asymptomatic patients. Harmonizing the sequence of movements and restoration of the dynamic scapular stability are basic steps to regenerate the irritated tendons (e.g. biceps tendon, rotator cuff). Electrophysiological studies have shown that the scapula bilizing muscles can effectively be exercised. These exercises are part of a step by step program which is described in this article. In the first place, core stability is essential. Furthermore, proprioception, stability and translational movement exercises are in the focus initially. If these exercises can be performed without pain, complex movements and finally sports specific exercises are added.
    Obere Extremität 09/2013;
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    ABSTRACT: Although shoulder hemiarthroplasty (SHA) can improve function in osteoarthritic shoulders, the ability to perform activities of daily living (ADL) may remain impaired. Shoulder surgeons routinely measure parameters such as range of motion, pain, satisfaction and strength. A common subjective assessment of ADL is part of the Constant Score (CS). However, there is limited objective evidence on whether or not shoulder hemiarthroplasty can restore normal range of motion (ROM) in ADL. The study included eight consecutive patients (n=8; seven women, one man), who underwent SHA for glenohumeral osteoarthritis. The patients were examined the day before, as well as 6 months and 3 years after shoulder replacement. They were compared with a control group with no shoulder pathology, and shoulder movement was measured with 3D motion analysis using the "Heidelberg Upper Extremity" (HUX) model. Measurements included static maximum values and four ADL. Comparing the preoperative to the 3-year postoperative static maximum values, there were significant improvements for abduction from 50.5° (SD ±32.4°) to 72.4° (SD ±38.2°; p=0.031), for adduction from 6.2° (SD ±7.7°) to 66.7° (SD ±18.0°; p=0.008), for external rotation from 15.1° (SD ±27.9°) to 50.9° (SD ±27.3°; p=0.031), and for internal rotation from -0.6° (SD ±3.9°) to 35.8° (SD ±28.2°; p=0.031). There was a trend of improvement for flexion from 105.8° (SD ±45.7°) to 161.9° (SD ±78.2°; p=0.094) and for extension from 20.6° (SD ±17.0°) to 28.0° (SD ±12.5°; p=0.313). The comparison of the 3-year postoperative ROM between the SHA group and controls showed significant differences in abduction; 3-year postoperative SHA ROM 72.4° (SD ±38.2°) vs. 113.5° (SD ±29.7°) among controls (p=0.029). There were no significant differences compared to the control group in adduction, flexion/extension and rotation 3 years after SHA surgery. In performing the ADL, the pre- to the 6-month and 3-year postoperative status of the SHA group resulted in a significant increase in ROM in all planes (p<0.05). Comparing the preoperative to the 3-year postoperative ROM used in ADL, there was an improvement in the flexion/extension plane, showing an improvement trend from preoperative 85°-0°-25° to postoperative 127°-0°-38° (p=0.063). In comparison, controls used a significantly greater ROM during ADL with mean flexion/extension of 139°-0°-63° (p=0.028). For the abduction/adduction plane, ROM improved significantly from preoperative 25°-0°-19° to postoperative 78°-0°-60° (p=0.031). In comparison to controls with abduction/adduction of 118°-0°-37° 3 years postoperative, the SHA group also used significantly less ROM in the abduction/adduction plane (p=0.028). While SHA improves ROM in ADL in patients with degenerative glenohumeral osteoarthritis, it does not restore the full ROM available for performing ADL compared to controls. 3D motion analysis with the HUX model is an appropriate measurement system to detect surgery-related changes in shoulder arthroplasty.
    Gait & posture 08/2013; · 2.58 Impact Factor
  • Julian Dexel, Philip Kasten
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    ABSTRACT: Hintergrund Die Ellenbogenarthroskopie ermöglicht effektiv die Diagnostik und Therapie von zahlreichen intra- und extraartikulären Pathologien des Ellenbogens. Das Indikationsspektrum der Ellenbogenarthroskopie hat sich in den letzten Jahrzehnten erweitert. Methoden Das kleine Gelenk, die komplexe Anatomie und die Nähe zu den neurovaskulären Strukturen erschweren die arthroskopische Orientierung und machen eine Therapie technisch anspruchsvoll. Schlussfolgerung Arthroskopische Erfahrung, die genaue Kenntnis der Ellenbogenanatomie (intra- und periartikulär), die Lagerung des Patienten, die Wahl der arthroskopischen Instrumente und das Flüssigkeitsmanagement sowie die Portalwahl und -platzierung sind wichtige Faktoren, um die Ellenbogenarthroskopie erfolgreich durchführen und Komplikationen vermeiden zu können.
    Arthroskopie 08/2013; 26:174-180.
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    ABSTRACT: Chronische Ellenbogenluxationen sind selten. Eine häufige Ursache ist ein Osteosyntheseversagen bzw. knöcherne Fehlstellungen nach komplexen Ellenbogenluxationen bzw. -luxationsfrakturen. Aufgrund der erheblichen Funktionsminderung, Schmerzsymptomatik und Gefahr einer Arthrose erfolgt die Behandlung meist operativ. Zur Planung der Operation sollte eine CT-Untersuchung durchgeführt werden. Da ein erhöhtes Risiko einer Ulnarisneuropraxie besteht, sollte zunächst der N. ulnaris dargestellt und neurolysiert werden. Prinzipiell sollte eine offene Gelenkreposition und Arthrolyse erfolgen. Anschließend werden eine eventuell notwendige knöcherne Rekonstruktion und additiv Bandplastiken durchgeführt. Bei einer persistierenden Instabilität sollte ein Bewegungsfixateur angelegt werden, in dem eine frühfunktionelle Behandlung gewährleistet werden kann. Bei schon erheblichen degenerativen Veränderungen kann auch die primäre Implantation einer Ellenbogenprothese indiziert sein.
    Arthroskopie 08/2013; 26(3).
  • Julian Dexel, Philip Kasten
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    ABSTRACT: Indikationen für die Ellenbogenarthroskopie sind die diagnostische Arthroskopie, die Entfernung freier Gelenkkörper, die Osteophytenabtragung, die Synovektomie, die Osteochondrosis dissecans und die Arthrolyse bei Kontrakturen des Ellenbogens. Die genaue Kenntnis der Anatomie und arthroskopische Erfahrung sind notwendig, um mit der engen Lagebeziehung der neurovaskulären Strukturen umzugehen. Damit die Operation schnell und komplikationsarm ausgeführt werden kann, sind eine korrekte Lagerung, die Markierung der Landmarken sowie die exakte Platzierung der Portale nötig. Der Anteil an Komplikationen ist verglichen mit den Knie- und Schulterarthroskopien häufiger, wobei geringfügige Komplikationen überwiegen. Die gefürchteten Nervenläsionen sind meistens transient, treten sie aber permanent auf, haben sie weitreichende Folgen für die Patienten. Die Ellenbogenarthroskopie hat sich zu einem sicheren und wichtigen Verfahren der Diagnostik und Therapie von Ellenbogenpathologien entwickelt. Abstract Indications for elbow arthroscopy include diagnostic arthroscopy, removal of loose bodies and osteophytes, synovectomy, treatment of osteochondrosis dissecans and capsular release in case of contracture. In particular, the anatomic vicinity of the neurovascular structures to the portals requires a thorough knowledge of elbow anatomy and some experience with the procedure. The exact positioning of the patient, identification of the landmarks and knowledge of the correct portal placement are necessary to perform a safe and effective operation and to avoid complications. The overall complication rate is higher as compared to knee- or shoulder arthroscopy with minor complications predominating. Nerve lesions are transient most of the time; however, being permanent they cause substantial problems for the patient. Overall, elbow arthroscopy has become a safe and reliable procedure for the diagnosis and therapy of elbow disorders.
    Obere Extremität 03/2013; 8(1):2-8.
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    ABSTRACT: Autologous chondrocyte transplantation/implantation (ACT/ACI) is an established and recognised procedure for the treatment of localised full-thickness cartilage defects of the knee. The present review of the working group "Clinical Tissue Regeneration" of the German Society of Orthopaedics and Traumatology (DGOU) describes the biology and function of healthy articular cartilage, the present state of knowledge concerning potential consequences of primary cartilage lesions and the suitable indication for ACI. Based on current evidence, an indication for ACI is given for symptomatic cartilage defects starting from defect sizes of more than 3-4 cm2; in the case of young and active sports patients at 2.5 cm2. Advanced degenerative joint disease is the single most important contraindication. The review gives a concise overview on important scientific background, the results of clinical studies and discusses advantages and disadvantages of ACI.
    Zeitschrift fur Orthopadie und Unfallchirurgie 02/2013; 151(1):38-47. · 0.62 Impact Factor
  • Julian Dexel, Philip Kasten
    Obere Extremität 01/2013; 8(1):2-8.
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    ABSTRACT: The purpose of this study was to assess the clinical and radiographic long-term outcomes of patients treated with a third-generation cemented total shoulder replacement and followed for at least ten years. The results of thirty-nine arthroplasties were analyzed clinically with use of the Constant score and on radiographs in two projections, with special regard to glenoid component loosening, at a mean of eleven years (range, ten to fifteen years) postoperatively. The mean Constant score was 27 points (range, 11 to 54 points) preoperatively and 61 points (range, 21 to 86 points) postoperatively (p < 0.0001). Mean shoulder flexion increased from 84° (range, 40° to 150°) preoperatively to 133° (range, 40° to 180°) postoperatively; mean abduction, from 77° (range, 40° to 110°) to 123° (range, 40° to 180°); and mean external rotation, from 11° (range, -20° to 40°) to 35° (range, 0° to 60°). No humeral components but 36% of the glenoid components were radiographically loose at the time of follow-up. Kaplan-Meier survivorship of the glenoid component was 100% after thirteen years with revision as the end point, whereas survivorship with radiographic loosening as the end point was only 48% after thirteen years. We found no correlation between glenoid loosening on radiographs and clinical findings such as the Constant score. Cranial migration of the humerus was seen in 69% of the cases. With the implants, cementation, and surgical technique utilized in this group of patients with primary glenohumeral osteoarthritis, radiographic loosening of the glenoid component and rotator cuff deficiency were very common at the ten to fifteen-year review. The follow-up was not long enough to fully identify the clinical sequelae of these findings. Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
    The Journal of Bone and Joint Surgery 12/2012; 94(23):e1711-10. · 4.31 Impact Factor
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    ABSTRACT: VEGF (vascular endothelial growth factor) promotes vascularization and remodeling of bone substitutes. The aim of this study was to examine the effect of distinct resorbable ceramic carriers on bone forming capacities of VEGF transfected bone marrow stromal cells (BMSC). A critical size defect of the radius in rabbits was filled either by a low surface scaffold called beta-TCP (tricalciumphsphate) or the high surface scaffold CDHA (calcium deficient hydroxy-apatite) loaded with autologous BMSC, which were either transfected with a control plasmid or a plasmid coding for phVEGF165. They were compared to unloaded scaffolds. Thus, six treatment groups (n = 6 in each group) were followed by X-ray over 16 weeks. After probe retrieval, the volume of new bone was measured by micro-CT scans and vascularization was assessed in histology. While only minor bone formation was found in both carriers when implanted alone, BMSC led to increased osteogenesis in both carriers. VEGF promoted vascularization of the scaffolds significantly in contrast to BMSC alone. Bone formation was increased in the beta-TCP group, whereas it was inhibited in the CDHA group that showed faster scaffold degradation. The results indicate that the interaction of VEGF transfected BMSC with resorbable ceramic carrier influences the ability to promote bone healing.
    Journal of functional biomaterials. 12/2012; 3(2):313-326.

Publication Stats

2k Citations
234.59 Total Impact Points

Institutions

  • 2014
    • Technische Universität Dresden
      • Institute and Outpatient Clinics of Orthopedics
      Dresden, Saxony, Germany
  • 2010–2014
    • Carl Gustav Carus-Institut
      Pforzheim, Baden-Württemberg, Germany
  • 2013
    • Universitätsklinikum Dresden
      • Klinik und Poliklinik für Unfall- und Wiederherstellungschirurgie
      Dresden, Saxony, Germany
  • 2002–2012
    • Universität Heidelberg
      • • Orthopedic and Trauma Surgery Center
      • • Orthopaedic Hospital
      Heidelberg, Baden-Wuerttemberg, Germany
  • 2009–2010
    • Universitätsklinikum Freiburg
      • Department of Orthopedics and Traumatology
      Freiburg an der Elbe, Lower Saxony, Germany
  • 2004–2009
    • Orthopädische Universitätsklinik Friedrichsheim
      Frankfurt, Hesse, Germany
  • 2006
    • University of Freiburg
      • Department of Orthopedics and Traumatology
      Freiburg, Baden-Württemberg, Germany
  • 2002–2003
    • Hannover Medical School
      • Trauma Department
      Hannover, Lower Saxony, Germany