Archives of orthopaedic and trauma surgery
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Arch Orthop Trauma Surg · Jul 2015
Comparative StudyReconstruction techniques in comparison for reverse shoulder trauma prosthesis in the elderly: a follow-up between 2 and 4 years.
The aim of this study was to evaluate the clinical outcome of a bone graft technique called bCAT (bone Collar And Tie), in which the fractured humeral head is modelled into a collar shape versus puzzle piece reconstruction (PPR) in elderly patients with complex proximal humeral fractures. ⋯ The PPR and the bCAT techniques promoted the healing and correct positioning of the tuberosities thereby resulting in good functioning of the residual cuff. The bCAT technique resulted in better clinical function particularly in abduction and extrarotation and in terms of radiological outcome of reverse prosthesis surgery.
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Arch Orthop Trauma Surg · Jul 2015
Open fixation of acute anterior glenoid rim fractures with bioresorbable pins: analysis of clinical and radiological outcome.
The purpose of this study was a detailed analysis of clinical and radiological results following open fixation of acute-traumatic, displaced anterior glenoid rim fractures with bioresorbable pins. ⋯ Bioresorbable pin fixation is a feasible and safe method of osteosynthesis for anterior glenoid rim fractures up to a glenoid defect size of about 35 % and enables immediate active range of motion. Good or excellent clinical outcome can be expected and glenohumeral stability is reliably restored. The most common mid- and long-term complication is occurrence or progression of osteoarthritis. The major benefits of bioresorbable pin fixation are redundancy of implant removal, minimal risk of implant-related complications and early functional rehabilitation.
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Arch Orthop Trauma Surg · Jul 2015
Displaced supracondylar humeral fractures: influence of delay of surgery on the incidence of open reduction, complications and outcome.
Closed reduction and pinning is the accepted treatment choice for dislocated supracondylar humeral fractures in children (SCHF). Rates of open reduction, complications and outcome are reported to be dependent on delay of surgery. We investigated whether delay of surgery had influence on the incidence of open reduction, complications and outcome of surgical treatment of SCHFs in the authors' institution. ⋯ III (retrospective comparative study).
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Arch Orthop Trauma Surg · Jul 2015
Case ReportsLaser engravings as reason for mechanical failure of titanium-alloyed total hip stems.
Two revisions of broken β-titanium total hip stems had to be performed in our hospital after 2 and 4 years in situ. Since both fractures were located at the level of a laser engraving, a failure analysis was conducted. ⋯ Laser engravings need to be reduced to a minimum of necessary information, and should be placed at locations with minimum mechanical load. Biomechanical analyses are recommended to identify less loaded areas in implant components to avoid such implant failures.
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Arch Orthop Trauma Surg · Jul 2015
A new universal, standardized implant database for product identification: a unique tool for arthroplasty registries.
Every joint registry aims to improve patient care by identifying implants that have an inferior performance. For this reason, each registry records the implant name that has been used in the individual patient. In most registries, a paper-based approach has been utilized for this purpose. However, in addition to being time-consuming, this approach does not account for the fact that failure patterns are not necessarily implant specific but can be associated with design features that are used in a number of implants. Therefore, we aimed to develop and evaluate an implant product library that allows both time saving barcode scanning on site in the hospital for the registration of the implant components and a detailed description of implant specifications. ⋯ The implant library that was developed for the German Arthroplasty Registry allows not only on-site barcode scanning for the registration of the implant components but also its classification tree allows a sophisticated analysis regarding implant characteristics, regardless of brand or manufacturer. The database is maintained by the implant manufacturers, thereby allowing registries to focus their resources on other areas of research. The database might represent a possible global model, which might encourage harmonization between joint replacement registries enabling comparisons between joint replacement registries.