Hell, Anna K.

[["dc.bibliographiccitation.firstpage","59"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Der Orthopäde"],["dc.bibliographiccitation.lastpage","65"],["dc.bibliographiccitation.volume","49"],["dc.contributor.author","Tsaknakis, Konstantinos"],["dc.contributor.author","Braunschweig, Lena"],["dc.contributor.author","Lorenz, Heiko M"],["dc.contributor.author","Hell, Anna K."],["dc.date.accessioned","2020-06-15T15:12:35Z"],["dc.date.available","2020-06-15T15:12:35Z"],["dc.date.issued","2020-01"],["dc.description.abstract","It is understood that an effective brace therapy requires a primary curve angle reduction of 50% after administering the first orthotic brace."],["dc.identifier.doi","10.1007/s00132-019-03709-6"],["dc.identifier.pmid","30899990"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/66321"],["dc.language.iso","other"],["dc.relation.eissn","1433-0431"],["dc.relation.issn","0085-4530"],["dc.title","Anspruch und Wirklichkeit bei der Korsettbehandlung"],["dc.title.alternative","Claims and realities of brace treatment: Primary correction of scoliosis in children and adolescents"],["dc.title.subtitle","Primärkorrektur bei Skoliosen im Kindes- und Jugendalter"],["dc.type","journal_article"],["dc.type.internalPublication","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","319"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Journal of Pediatric Orthopaedics"],["dc.bibliographiccitation.lastpage","323"],["dc.bibliographiccitation.volume","21"],["dc.contributor.author","Hell-Vocke, A. K."],["dc.contributor.author","von Laer, L."],["dc.contributor.author","Slongo, T."],["dc.contributor.author","Stankovic, P."],["dc.date.accessioned","2018-11-07T09:07:48Z"],["dc.date.available","2018-11-07T09:07:48Z"],["dc.date.issued","2001"],["dc.description.abstract","We report five cases of a rare complication of childhood fractures of the elbow region. The complication consists of posttraumatic dissolution of the lateral humeral condyle followed by secondary radial head overgrowth and dislocation, The initial injuries ranged from displaced lateral condyle fractures (three patients) to a supracondylar fracture and an open elbow dislocation. Dysplasia of the lateral humeral condyle was first noted I to 4 years after the trauma (mean? 2.5 years) and seemed to be caused by removal of the displaced fracture fragment in one patient, and possibly by malfixation and repeated surgical procedures in the others. Because of loss of motion, ulnar nerve irritation, and cosmetic deformities, corrective osteotomies had to be performed in four patients and additional radial head removal in two patients."],["dc.identifier.doi","10.1097/00004694-200105000-00011"],["dc.identifier.isi","000168388000011"],["dc.identifier.pmid","11371813"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/25883"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Lippincott Williams & Wilkins"],["dc.relation.issn","0271-6798"],["dc.title","Secondary radial head dislocation and dysplasia of the lateral condyle after elbow trauma in children"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","272"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","The Journal of Foot and Ankle Surgery"],["dc.bibliographiccitation.lastpage","278"],["dc.bibliographiccitation.volume","61"],["dc.contributor.author","Eysel, Lara O."],["dc.contributor.author","Lüders, Katja A."],["dc.contributor.author","Braunschweig, Lena"],["dc.contributor.author","Lorenz, Heiko M."],["dc.contributor.author","Dörner, Jochen"],["dc.contributor.author","Hell, Anna K."],["dc.contributor.author","Stinus, Hartmut"],["dc.date.accessioned","2022-09-01T09:50:15Z"],["dc.date.available","2022-09-01T09:50:15Z"],["dc.date.issued","2022"],["dc.description.abstract","Flexible flatfoot is among the most common skeletal disorders in childhood. This study describes the dynamic and static correction effects of subtalar arthroereisis in adolescents with flexible symptomatic flatfeet in comparison to normal subjects as well as to results before and after removal of metal. Eighteen adolescents with 25 symptomatic flexible flatfeet were treated surgically with a subtalar arthroereisis at a mean of 12.5 (10-16) years. At follow-up (mean 3.9 years, range 0.4-8), patients filled out the American Orthopaedic Foot and Ankle Society questionnaire, received radiographs and were examined using dynamic and static pedobarography as well as static hindfoot axis examination. Results were compared to healthy controls (n = 13; 26 feet). Surgically treated feet (n = 25) had better questionnaire results after surgery than before, but lower scores than healthy feet. Radiological parameters improved significantly after surgery. Removal of metal did not influence post-surgical results (follow-up 2.8 years). Surgically treated feet had larger contact areas than normal feet with predominance to the midfoot region. The relative maximum force, relative peak pressure and contact time were higher in the midfoot of treated feet compared to controls. When comparing pedobarography data of treated versus untreated feet of the same patients (subgroup n = 11 feet), there were no differences. Subtalar arthroereisis was able to effectively treat symptomatic flexible flatfeet in this population. Results improved significantly evaluating a questionnaire, radiographs, dynamic and static weight distribution, but were still worse than results of healthy feet. There was no relapse after removal of metal."],["dc.identifier.doi","10.1053/j.jfas.2021.07.021"],["dc.identifier.pii","S1067251621002751"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/113661"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-597"],["dc.relation.issn","1067-2516"],["dc.relation.orgunit","Klinik für Unfallchirurgie, Orthopädie und Plastische Chirurgie"],["dc.rights.uri","https://www.elsevier.com/tdm/userlicense/1.0/"],["dc.title","Foot Typology, Dynamic and Static Weight Distribution, and Radiographic Changes After Subtalar Arthroereisis in Juvenile Symptomatic Flexible Flat Feet"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","88"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Journal of Bone and Joint Surgery. B, British Volume"],["dc.bibliographiccitation.lastpage","94"],["dc.bibliographiccitation.volume","87"],["dc.contributor.author","Hasler, C C"],["dc.contributor.author","Von Laer, L"],["dc.contributor.author","Hell, A. K."],["dc.date.accessioned","2020-06-15T15:13:35Z"],["dc.date.available","2020-06-15T15:13:35Z"],["dc.date.issued","2005-01"],["dc.description.abstract","We reviewed 15 patients, nine girls and six boys, with chronic anterior dislocation of the radial head which was treated by ulnar osteotomy, external fixation and open reconstruction of the elbow joint but without repair of the annular ligament. Their mean age was 9.5 years (5 to 15) and the mean interval between the injury and reconstruction was 22 months (2 months to 7 years). All radial heads remained reduced at a mean follow-up of 20 months (6 months to 5 years). Normal ranges of movement for flexion, extension, pronation and supination were unchanged in 96.1% (49/51) and worse in 3.9% (2/51). Limited ranges of movement were improved in 77.8% (7/9), unchanged in 11% (1/9) and further decreased in 11% (1/9).There were two superficial pin-track infections and two cases of delayed union but with no serious complications. Reconstruction of the radiocapitellar joint is easier using external fixation since accurate correction of the ulna can be determined empirically and active functional exercises started immediately. Only patients with a radial head of normal shape were selected for treatment by this method."],["dc.identifier.pmid","15686243"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/66334"],["dc.language.iso","en"],["dc.relation.issn","0301-620X"],["dc.title","Open reduction, ulnar osteotomy and external fixation for chronic anterior dislocation of the head of the radius"],["dc.type","journal_article"],["dc.type.internalPublication","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","755"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Der Unfallchirurg"],["dc.bibliographiccitation.lastpage","767"],["dc.bibliographiccitation.volume","124"],["dc.contributor.author","Lippross, Sebastian"],["dc.contributor.author","Tsaknakis, Konstantinos"],["dc.contributor.author","Lorenz, Heiko M."],["dc.contributor.author","Hell, Anna K."],["dc.date.accessioned","2021-09-01T06:38:29Z"],["dc.date.available","2021-09-01T06:38:29Z"],["dc.date.issued","2021"],["dc.identifier.doi","10.1007/s00113-021-01061-z"],["dc.identifier.pii","1061"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/88943"],["dc.language.iso","de"],["dc.notes.intern","DOI-Import GROB-455"],["dc.relation.eissn","1433-044X"],["dc.relation.issn","0177-5537"],["dc.title","Kongenitale Pseudarthrose der Tibia"],["dc.title.alternative","Ein seltenes, oft unterschätztes Krankheitsbild"],["dc.title.translated","Congenital pseudarthrosis of the tibia"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","71"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Surgical Infections"],["dc.bibliographiccitation.lastpage","77"],["dc.bibliographiccitation.volume","19"],["dc.contributor.author","Wagner, Leonie"],["dc.contributor.author","Braunschweig, Lena"],["dc.contributor.author","Eiffert, Helmut"],["dc.contributor.author","Tsaknakis, Konstantinos"],["dc.contributor.author","Kamin, Dirk"],["dc.contributor.author","D'Este, Elisa"],["dc.contributor.author","Messer, Philipp K"],["dc.contributor.author","Hell, Anna-Kathrin"],["dc.contributor.author","Lorenz, Heiko M"],["dc.date.accessioned","2020-06-15T15:12:31Z"],["dc.date.available","2020-06-15T15:12:31Z"],["dc.date.issued","2018-01"],["dc.description.abstract","Bacterial colonization of spinal implants may cause severe complications in patients with early-onset scoliosis. Correct diagnosis and detection of microbiologic formation is crucial to prevent delayed infections caused by bacterial colonization. The purposes of this study were to estimate the rate and risk factors of colonization of vertical expandable prosthetic titanium rib (VEPTR) implants in children and to compare the different methods for detecting microbiologic formation on the spinal implants."],["dc.identifier.doi","10.1089/sur.2017.185"],["dc.identifier.pmid","29190173"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/66320"],["dc.language.iso","en"],["dc.relation.eissn","1557-8674"],["dc.relation.issn","1096-2964"],["dc.title","Detection of Bacteria Colonizing Titanium Spinal Implants in Children"],["dc.type","journal_article"],["dc.type.internalPublication","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","597"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","European Journal of Trauma"],["dc.bibliographiccitation.lastpage","607"],["dc.bibliographiccitation.volume","31"],["dc.contributor.author","von Laer, Lutz"],["dc.contributor.author","Hasler, Carol"],["dc.contributor.author","Hell-Vocke, Anna-Kathrin"],["dc.date.accessioned","2020-06-16T10:32:03Z"],["dc.date.available","2020-06-16T10:32:03Z"],["dc.date.issued","2005"],["dc.identifier.doi","10.1007/s00068-005-6605-5"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/66354"],["dc.relation.issn","1439-0590"],["dc.relation.issn","1615-3146"],["dc.title","Late Missed Monteggia Lesions"],["dc.title.subtitle","Reconstruction of the Humeroradial Joint"],["dc.type","journal_article"],["dc.type.internalPublication","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","81"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Physikalische Medizin Rehabilitationsmedizin Kurortmedizin"],["dc.bibliographiccitation.lastpage","87"],["dc.bibliographiccitation.volume","17"],["dc.contributor.author","Spahn, Gunter"],["dc.contributor.author","Hell, Anna-Kathrin"],["dc.contributor.author","Klinger, Hans-Michael"],["dc.contributor.author","Langlotz, A."],["dc.contributor.author","Mueckley, Thomas"],["dc.contributor.author","Schiele, R."],["dc.date.accessioned","2018-11-07T11:03:54Z"],["dc.date.available","2018-11-07T11:03:54Z"],["dc.date.issued","2007"],["dc.description.abstract","Back Pain is a common problem for adolescents and adults. it has high social but also economic importance in medicine and public health. Material and methods: A total of 2368 adolescents (1137 male, 1231 female; age 14.5 +/- 0.65, 13-18 years) who had undergone obligatory public health examination were included into the study. In the beginning the adolescents had to answer a questionnaire. Here were asked frequency and localisation of muscolu-skeletal and back pain but also social status and consumption of tobacco and alcoholic beverages. The clinical examination was performed by 4 well experienced school-doctors. At the beginning the doctors were instructed by an orthopaedic surgeon and the criteria for clinical signs of back pathologies were standardized. Results: The overall prevalence of LBP was 45.5%. From these 38.2% adolescents had occasional back pain, 4% during physical activity, and 3.3% reported permanent pain. The prevalence of back pathologies was 28.1%. The prevalence of back pain without concomitant back pathologies was 29%. In 11.7% of the adolescents pathologies of the back were detected without any symptoms. The combination of back pain and back pathology was observed in 16.5%. Metaanalysis revealed the following significant risk factors (p < 0.05) for developing LBP: Female gender (OR = 1.6), visit of a middle school (OR=1.5) or visit of a high school (OR = 1.7), smoking (OR = 1.5), scoliosis (OR = 1.8), round back (OR=1.6), and inclined pelvic tilting pelvis (OR=1.4). Conclusions: In our adolescent population back pain is a common problem with an overall life time prevalence of 45,5%. Objective pathological changes as detected by clinical examination are only found in 28.1% of these children. Other factors such as female gender, alcohol or smoking seem to be related to a higher prevalence of LBP as well. Therefore, early preventive programs for this age group may reduce the prevalence of LBP."],["dc.identifier.doi","10.1055/s-2007-961798"],["dc.identifier.isi","000246691400002"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/51714"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","0940-6689"],["dc.title","Prävalenz und assoziierte Faktoren des Rückenschmerzes bei Jugendlichen - Ergebnisse einer Querschnittsuntersuchung von 2368 Adoleszenten"],["dc.title.alternative","Prevalence and associated factors of lower back pain in 2368 adolescents"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","204"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Journal of Biomedical Materials Research"],["dc.bibliographiccitation.lastpage","213"],["dc.bibliographiccitation.volume","62"],["dc.contributor.author","Lohmann, C H"],["dc.contributor.author","Tandy, E M"],["dc.contributor.author","Sylvia, V L"],["dc.contributor.author","Hell-Vocke, A. K."],["dc.contributor.author","Cochran, D L"],["dc.contributor.author","Dean, D D"],["dc.contributor.author","Boyan, B D"],["dc.contributor.author","Schwartz, Z"],["dc.date.accessioned","2020-06-16T10:32:34Z"],["dc.date.available","2020-06-16T10:32:34Z"],["dc.date.issued","2002-11"],["dc.description.abstract","Titanium (Ti) surfaces with rough microtopographies enhance osteogenic differentiation, local factor production, and response to osteogenic agents in vitro and increase pullout strength of dental implants in vivo. Estrogens regulate bone formation, resorption, and remodeling in females and may be important in implant success. Here, we tested the hypothesis that estrogen modulates osteoblast response to implant surface morphology. Primary female human osteoblasts were cultured to confluence on three Ti surfaces (pretreatment, PT - R(a) 0.60 microm; sandblasted and acid-etched, SLA - R(a) 3.97 microm; and Ti plasma-sprayed, TPS - R(a) 5.21 microm) and treated for 24 h with 10(-7) or 10(-8) M 17beta-estradiol (E(2)). Cell number decreased with increasing surface roughness, but was not sensitive to E(2). Alkaline phosphatase specific activity of isolated cells and cell layer lysates was lower on rough surfaces. E(2) increased both parameters on smooth surfaces, whereas on rough surfaces, the stimulatory effect of E(2) on alkaline phosphatase was evident only when measuring cell layer lysates. Osteocalcin levels were higher in the conditioned media of cells grown on rough surfaces; E(2) had no effect in cultures on the plastic surfaces, but increased osteocalcin production on all Ti surfaces. TGF-beta1 and PGE(2) production was increased on rough surfaces, and E(2) augmented this effect in a synergistic manner; on smooth surfaces, there was no change in production with E(2). The response of osteoblasts to surface topography was modulated by E(2). On smooth surfaces, E(2) affected only alkaline phosphatase, but on rough surfaces, E(2) increased levels of osteocalcin, TGF-beta1, and PGE(2). These results show that normal adult human female osteoblasts are sensitive to surface microtopography and that E(2) can alter this response."],["dc.identifier.doi","10.1002/jbm.10290"],["dc.identifier.pmid","12209940"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/66360"],["dc.language.iso","en"],["dc.relation.issn","0021-9304"],["dc.title","Response of normal female human osteoblasts (NHOst) to 17beta-estradiol is modulated by implant surface morphology"],["dc.type","journal_article"],["dc.type.internalPublication","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","138"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Journal of Pediatric Orthopaedics. Part B"],["dc.bibliographiccitation.lastpage","141"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Hell-Vocke, Anna K."],["dc.contributor.author","Schmid, Alois"],["dc.date.accessioned","2020-06-16T10:32:39Z"],["dc.date.available","2020-06-16T10:32:39Z"],["dc.date.issued","2001"],["dc.identifier.doi","10.1097/00009957-200104000-00011"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/66361"],["dc.relation.issn","1060-152X"],["dc.title","Sonographic Differentiation of Stable and Unstable Lateral Condyle Fractures of the Humerus in Children"],["dc.type","journal_article"],["dc.type.internalPublication","no"],["dspace.entity.type","Publication"]]