Braatz, Frank

[["dc.bibliographiccitation.firstpage","278"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Annals of Physical and Rehabilitation Medicine"],["dc.bibliographiccitation.lastpage","285"],["dc.bibliographiccitation.volume","61"],["dc.contributor.author","Lansade, Céline"],["dc.contributor.author","Vicaut, Eric"],["dc.contributor.author","Paysant, Jean"],["dc.contributor.author","Ménager, Doménico"],["dc.contributor.author","Cristina, Marie-Christine"],["dc.contributor.author","Braatz, Frank"],["dc.contributor.author","Domayer, Stephan"],["dc.contributor.author","Pérennou, Dominic"],["dc.contributor.author","Chiesa, Gérard"],["dc.date.accessioned","2020-12-10T15:21:03Z"],["dc.date.available","2020-12-10T15:21:03Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1016/j.rehab.2018.04.003"],["dc.identifier.issn","1877-0657"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/72901"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Mobility and satisfaction with a microprocessor-controlled knee in moderately active amputees: A multi-centric randomized crossover trial"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","636"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Zeitschrift für Orthopädie und Unfallchirurgie"],["dc.bibliographiccitation.lastpage","642"],["dc.bibliographiccitation.volume","153"],["dc.contributor.author","Braatz, Frank"],["dc.contributor.author","Poljuchow, J."],["dc.contributor.author","Klotz, Matthias C."],["dc.contributor.author","Heitzmann, D. W. W."],["dc.contributor.author","Wolf, S. I."],["dc.contributor.author","Dreher, Thomas"],["dc.date.accessioned","2018-11-07T09:47:55Z"],["dc.date.available","2018-11-07T09:47:55Z"],["dc.date.issued","2015"],["dc.description.abstract","Introduction: Patients with spastic cerebral palsy GMFCS I-III often develop gait dysfunctions. One of the most prevalent gait dysfunctions is the intoeing gait. Femoral derotation osteotomy is the common treatment for internal rotation gait in cerebral palsy. We now present 3D-gait analysis data of the hip rotation in gait before and after femoral derotation osteotomy. We analysed the influence of the age at the index operation on the risk of recurrence and the surgical technique. Methods: We included 48 patients treated with femoral derotation osteotomy during a single event of multi-level surgery. Mean hip rotation in standing was measured before and after femoral derotation osteotomy (FDO). The patients were divided into two groups of different age and in a second analysis into two groups with the osteotomy in different locations, either inter-trochanteric (DO proximal) or supracondylar (DO distal). Results: Age at FDO and surgical technique had no influence on the results. However, the variance of the results was very high. Differences were found in the walking speed between the DO proximal and DO distal groups. The walking speed in the group of distal femoral osteotomy was higher. This difference was not significant, but there was a trend to proximal osteotomy in slower walkers. Significant improvements in IRG after FDO were found in our investigation. Our results indicate that FDO as a part of single-event multilevel surgery SEMLS provides a satisfactory mean overall correction of IRG. The results were independent of the age at the index operation and the location of the osteotomy."],["dc.identifier.doi","10.1055/s-0035-1557934"],["dc.identifier.isi","000370051900017"],["dc.identifier.pmid","26468922"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/35199"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Thieme Medical Publ Inc"],["dc.relation.issn","1864-6743"],["dc.relation.issn","1864-6697"],["dc.title","Femoral Derotation in Children with Cerebral Palsy - Does the Result Depend on the Age at Operation and the Kind of Surgery?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1357"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Research in Developmental Disabilities"],["dc.bibliographiccitation.lastpage","1363"],["dc.bibliographiccitation.volume","35"],["dc.contributor.author","Klotz, Matthias C."],["dc.contributor.author","Wolf, Sebastian I."],["dc.contributor.author","Heitzmann, Daniel"],["dc.contributor.author","Maier, Michael W."],["dc.contributor.author","Braatz, Frank"],["dc.contributor.author","Dreher, Thomas"],["dc.date.accessioned","2018-11-07T09:39:50Z"],["dc.date.available","2018-11-07T09:39:50Z"],["dc.date.issued","2014"],["dc.description.abstract","Primary genu recurvatum (GR) is less investigated and data presenting the prevalence among patients with bilateral spastic cerebral palsy (BSCP) is lacking in the literature. Equinus is mentioned as one of the main underlying factors in GR, but its influence on the severity and onset type of GR is mainly unanswered, yet. Hence, the purpose of this retrospective study was to assess the prevalence of GR in a large sample size in children with BSCP and to investigate sagittal plane kinematics to evaluate the influence of equinus on different GR types using data of three-dimensional gait analysis. GR was defined as a knee hyperextension of more than one standard deviation of an age matched control group during stance phase in either one or both of the limbs. Primary GR was defined as a GR without having previous surgery regarding the lower extremity, no selective dorsal rhizotomy and/or interventions like botulinum toxin injection, shock wave therapy or serial casting during the last 6 months in the patient history. In a retrospective study 463 patients with BSCP (GMFCS Level I-III) received three-dimensional gait analysis and were scanned for the presence of primary GR. Finally, 37 patients (23 males, 14 females) matched the determined inclusion criteria and were therefore included for further analysis in this study. Out of those patients seven walked with orthoses or a walker and were excluded from further statistical comparison: Kinematics of the lower limbs were compared between patients having severe (knee hyperextension > 15 degrees) and moderate (knee hyperextension 5-15 degrees) GR and between patients showing an early (first half of stance phase) and a late (second half of stance phase) GR. Primary GR was present in 37 patients/52 limbs (prevalence 8.0/5.6%). Severe GR was associated with a decreased ankle dorsiflexion compared with moderate GR. Early GR showed an increased knee hyperextension compared to late GR. In conclusion GR is less frequent compared with crouch or stiff gait. Our findings support the importance of equinus as a major underlying factor in primary GR. In this context the influence of equinus seems to be more important in early GR. (C) 2014 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.ridd.2014.03.032"],["dc.identifier.isi","000335635100018"],["dc.identifier.pmid","24705489"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/33382"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.relation.issn","0891-4222"],["dc.title","The association of equinus and primary genu recurvatum gait in cerebral palsy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","282"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","The Bone & Joint Journal"],["dc.bibliographiccitation.lastpage","288"],["dc.bibliographiccitation.volume","98B"],["dc.contributor.author","Putz, C."],["dc.contributor.author","Doederlein, L."],["dc.contributor.author","Mertens, E. M."],["dc.contributor.author","Wolf, S. I."],["dc.contributor.author","Gantz, S."],["dc.contributor.author","Braatz, Frank"],["dc.contributor.author","Dreher, Thomas"],["dc.date.accessioned","2018-11-07T10:18:41Z"],["dc.date.available","2018-11-07T10:18:41Z"],["dc.date.issued","2016"],["dc.description.abstract","Aims Single-event multilevel surgery (SEMLS) has been used as an effective intervention in children with bilateral spastic cerebral palsy (BSCP) for 30 years. To date there is no evidence for SEMLS in adults with BSCP and the intervention remains focus of debate. Methods This study analysed the short-term outcome (mean 1.7 years, standard deviation 0.9) of 97 ambulatory adults with BSCP who performed three-dimensional gait analysis before and after SEMLS at one institution. Results Two objective gait variables were calculated pre-and post-operatively; the Gillette Gait Index (GGI) and the Gait Profile Score (GPS). The results were analysed in three groups according to their childhood surgical history (group 1 = no surgery, group 2 = surgery other than SEMLS, group 3 = SEMLS). Improvements in gait were shown by a significant decrease of GPS (p = 0.001). Similar results were obtained for both legs (GGI right side and left side p = 0.01). Furthermore, significant improvements were found in all subgroups although this was less marked in group 3, where patients had undergone previous SEMLS. Discussion SEMLS is an effective and safe procedure to improve gait in adults with cerebral palsy. However, a longer rehabilitation period is to be expected than found in children. SEMLS is still effective in adult patients who have undergone previous SEMLS in childhood."],["dc.identifier.doi","10.1302/0301-620X.98B2.36122"],["dc.identifier.isi","000369633400022"],["dc.identifier.pmid","26850437"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/41498"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","British Editorial Soc Bone Joint Surgery"],["dc.relation.issn","2049-4394"],["dc.title","Multilevel surgery in adults with cerebral palsy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2193"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","International Orthopaedics"],["dc.bibliographiccitation.lastpage","2198"],["dc.bibliographiccitation.volume","37"],["dc.contributor.author","Braatz, Frank"],["dc.contributor.author","Wolf, Sebastian I."],["dc.contributor.author","Gerber, Annette"],["dc.contributor.author","Klotz, Matthias C."],["dc.contributor.author","Dreher, Thomas"],["dc.date.accessioned","2018-11-07T09:18:13Z"],["dc.date.available","2018-11-07T09:18:13Z"],["dc.date.issued","2013"],["dc.description.abstract","Purpose Femoral derotation osteotomy (FDO) is commonly used to correct internal rotation gait (IRG) in spastic diplegia. The purpose of this study was to investigate whether the extent of intraoperative derotation is reflected in changes in static (clinical ROM and anteversion angle measured on torsional MRI) and dynamic parameters (transverse plane kinematics in three-dimensional gait analysis) after FDO in children with spastic diplegia. Methods In a prospective study, 30 children with spastic diplegia and IRG were treated with FDO as part of a multilevel surgery and were examined pre- and postoperatively clinically, by three-dimensional gait analysis and by torsional MRI according to a standardised protocol. Results A correlation (r = 0.317, p = 0.015) between the extent of intraoperative derotation and mean hip rotation in stance as well as the anteversion angle measured on torsional MRI (r = 0.454, p < 0.001) was found. However, no significant correlation was observed between anteversion angle (tMRI) and mean hip rotation in stance, either before or after FDO. Conclusions Significant improvements were found in IRG after FDO, confirming the results of previous studies. There was no correlation between the anteversion measured on MRI and the mean hip rotation in stance in 3D gait analysis before or after FDO. Thus, the data suggest that if the intraoperative extent of derotation is determined only by the anteversion angle, the result will not be better after FDO. It might only help to avoid retroversion and indicate the maximum amount of femoral derotation. In this study the extent of the intraoperative derotation was orientated at the preoperative midpoint of rotation. Based on the small, but significant correlation between the clinical midpoint and the mean hip rotation in stance in the gait analysis, determination of the intraoperative extent of derotation according to the mean hip rotation in stance seems to give the best results."],["dc.identifier.doi","10.1007/s00264-013-2054-7"],["dc.identifier.isi","000326104400013"],["dc.identifier.pmid","23955818"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/28355"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1432-5195"],["dc.relation.issn","0341-2695"],["dc.title","Do changes in torsional magnetic resonance imaging reflect improvement in gait after femoral derotation osteotomy in patients with cerebral palsy?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1663"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","International Orthopaedics"],["dc.bibliographiccitation.lastpage","1668"],["dc.bibliographiccitation.volume","40"],["dc.contributor.author","Braatz, Frank"],["dc.contributor.author","Staude, Daniel"],["dc.contributor.author","Klotz, Matthias C."],["dc.contributor.author","Wolf, Sebastian I."],["dc.contributor.author","Dreher, Thomas"],["dc.contributor.author","Lakemeier, Stefan"],["dc.date.accessioned","2018-11-07T10:11:07Z"],["dc.date.available","2018-11-07T10:11:07Z"],["dc.date.issued","2016"],["dc.description.abstract","Introduction Neurogenic hip dislocation is quite common in children with cerebral palsy (CP). The purpose of this study was to evaluate the long-term outcome of single-event multilevel surgery (SEMLS) in combination with hip reconstruction by using a periacetabular osteotomy as described by Dega concerning post-operative remodeling and plasticity of the femoral head post-operatively. Methods A total of 72 patients with CP as the primary disease and in whom a complex surgical hip reconstruction was performed during SEMLS between 1998 and 2004 were included in the study. There were 45 men and 27 women, with a median age of 7.6 (4.7-16.3) years at the time SEMLS was performed. The mean follow-up time was 7.7 years (4.9-11.8). X-rays were taken before and after surgery, and Rippstein 1 and 2 were used for follow-up. As the most reliable value for decentration, migration percentage (MP) as described by Reimers was used. To measure hip-joint cover at follow-up, the centre-edge angle was used. The hip was divided into four different categories according to sphericity and congruity. Using this approach, we could evaluate joint remodeling. Results Pre-operatively, the mean MP measured by X-ray was 68 %. Directly after surgery, this value decreased on average by 12 % and at the long-term follow-up was 16.0 % on average. A high rate of incongruence was observed on X-rays taken directly after surgery: 66 hip joints were classified as incongruent. The number of aspherical and incongruent joints decreased to 54 at the follow-up examination. Conclusion Data of our study with high plasticity of the hip joint suggest that even if the femoral head is deformed and a persistent incongruency after surgery is expected, hip reconstruction can be recommended."],["dc.identifier.doi","10.1007/s00264-015-3013-2"],["dc.identifier.isi","000380690500015"],["dc.identifier.pmid","26454662"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/39985"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1432-5195"],["dc.relation.issn","0341-2695"],["dc.title","Hip-joint congruity after Dega osteotomy in patients with cerebral palsy: long-term results"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","808"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Der Orthopäde"],["dc.bibliographiccitation.lastpage","814"],["dc.bibliographiccitation.volume","43"],["dc.contributor.author","Braatz, Frank"],["dc.contributor.author","Eidemueller, Annette"],["dc.contributor.author","Klotz, Matthias C."],["dc.contributor.author","Wolf, S. I."],["dc.contributor.author","Dreher, Thomas"],["dc.date.accessioned","2018-11-07T09:36:01Z"],["dc.date.available","2018-11-07T09:36:01Z"],["dc.date.issued","2014"],["dc.description.abstract","Hip dislocation as a result of neurogenic hip displacement is a common focal motor symptom in children with infantile cerebral palsy (ICP). In addition to contracture of the hip joint, in up to 65 % of cases patients suffer from pain which leads to further loss of function and often to limitations in important basic functions, such as lying, care, sitting, standing and transfer. In order to avoid hip dislocation and to be able to implement therapy at an early stage, screening programs have been developed in recent years which clearly demonstrate the risks of hip displacement in ICP depending on the ability to walk. An investigation of the natural course is practically impossible because as a rule patients with painful neurogenic hip displacement receive surgical therapy. In this study 96 patients with high hip dislocation grade IV on the Tonnis classification were included and 68 could be followed up. The average age at the time of surgery was 10.9 years and the mean follow-up period was 7.7 years. In the postoperative course 6 out of 91 reconstructed hips became redislocated and a proximal femoral resection was carried out in one female patient. The migration index according to Reimers was 14.0 % at the time of the follow-up examination. Revision procedures can be avoided by screening programs. These should be strived for so that the neuro-orthopedic treatment on operation planning is not first initiated when pain occurs and revision procedures, such as angulation osteotomy or proximal femoral resection can be avoided. The reconstruction should also involve minimal deformation of the femoral head. In order to implement this, the interdisciplinary cooperation between neuropediatricians, social pediatriatricians and neuro-orthopedists should be intensified in the future."],["dc.identifier.doi","10.1007/s00132-014-2315-1"],["dc.identifier.isi","000341377200002"],["dc.identifier.pmid","24816981"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/32520"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1433-0431"],["dc.relation.issn","0085-4530"],["dc.title","Long-term results of reconstructive surgery in infantile cerebral palsy patients with high hip dislocation. Is hip screening necessary?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","215"],["dc.bibliographiccitation.journal","Gait & Posture"],["dc.bibliographiccitation.lastpage","219"],["dc.bibliographiccitation.volume","61"],["dc.contributor.author","Braatz, Frank"],["dc.contributor.author","Dreher, Thomas"],["dc.contributor.author","Wolf, Sebastian I."],["dc.contributor.author","Niklasch, Mirjam"],["dc.date.accessioned","2020-12-10T14:24:12Z"],["dc.date.available","2020-12-10T14:24:12Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1016/j.gaitpost.2018.01.017"],["dc.identifier.issn","0966-6362"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/72183"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Preoperative hip rotation moments do not predict long-term development after femoral derotation osteotomy in children with cerebral palsy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","670"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Gait & Posture"],["dc.bibliographiccitation.lastpage","675"],["dc.bibliographiccitation.volume","41"],["dc.contributor.author","Niklasch, M."],["dc.contributor.author","Doederlein, L."],["dc.contributor.author","Klotz, Matthias C."],["dc.contributor.author","Braatz, Frank"],["dc.contributor.author","Wolf, S. I."],["dc.contributor.author","Dreher, Thomas"],["dc.date.accessioned","2018-11-07T10:01:14Z"],["dc.date.available","2018-11-07T10:01:14Z"],["dc.date.issued","2015"],["dc.description.abstract","Internal rotation gait is common among children with bilateral cerebral palsy. However, despite bilaterally increased femoral anteversion asymmetric internal rotation gait is often found. Femoral derotation osteotomy (FDO) is commonly performed bilaterally. Variable functional outcomes are reported especially in cases with mild internal hip rotation during gait and abnormal preoperative pelvic rotation. A major question is if a unilateral treatment of the more involved side in asymmetric cases leads to a comparable or even superior outcome. One hundred and nine children with spastic bilateral CP treated with FDO with pre- and 1-year postoperative 3D gait analysis were retrospectively collected. The asymmetry was calculated from the preoperative difference between both limbs in hip rotation obtained by 3D gait analysis. Twenty-eight children with asymmetry larger than 20 degrees were selected and classified into two groups, according to whether they obtained a unilateral or bilateral FDO. Preoperative clinical examination and pre- and postoperative hip and pelvic rotation in gait analysis on the more and the less involved side did not differ significantly between both groups. Interestingly, in both groups, hip rotation did not change significantly in less-involved limbs, although intraoperative derotation averaged 25 degrees. After unilateral FDO a significant change in pelvic rotation resulted, whereas this was not found after bilateral FDO. The results of this study suggest that unilateral FDO in children with asymmetric internal rotation gait leads to a comparable functional outcome compared to bilateral treatment. Furthermore, it was shown for the first time that considering the asymmetry has a positive effect on pelvic rotation. (C) 2015 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.gaitpost.2015.01.024"],["dc.identifier.isi","000351933700055"],["dc.identifier.pmid","25698350"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/37972"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Ireland Ltd"],["dc.relation.issn","1879-2219"],["dc.relation.issn","0966-6362"],["dc.title","Asymmetric pelvic and hip rotation in children with bilateral cerebral palsy: Uni- or bilateral femoral derotation osteotomy?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1256"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Bone & Joint Journal"],["dc.bibliographiccitation.lastpage","1264"],["dc.bibliographiccitation.volume","99-B"],["dc.contributor.author","Putz, C."],["dc.contributor.author","Wolf, S. I."],["dc.contributor.author","Mertens, E. M."],["dc.contributor.author","Geisbüsch, A."],["dc.contributor.author","Gantz, S."],["dc.contributor.author","Braatz, F."],["dc.contributor.author","Döderlein, L."],["dc.contributor.author","Dreher, T."],["dc.date.accessioned","2020-12-10T18:41:57Z"],["dc.date.available","2020-12-10T18:41:57Z"],["dc.date.issued","2017"],["dc.identifier.doi","10.1302/0301-620X.99B9.BJJ-2016-1155.R1"],["dc.identifier.eissn","2049-4408"],["dc.identifier.issn","2049-4394"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/77742"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Effects of multilevel surgery on a flexed knee gait in adults with cerebral palsy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]