Archives of orthopaedic and trauma surgery
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Arch Orthop Trauma Surg · May 2023
Effect of implant composition on periprosthetic bone mineral density after total hip arthroplasty.
The severity of bone mineral density (BMD) loss after total hip arthroplasty (THA) depends on both implant- and patient-related factors. While implant fixation type is an important factor, but few studies have considered the effect of material composition on the same implant fixation type. In particular, differences in mechanical stiffness due to material composition are of great interest. Here, we compared changes in periprosthetic BMD after THA using proximal fixation concept stems comprising different titanium alloys, i.e., β titanium alloys stem and α + β titanium alloys stem. ⋯ α + β titanium alloys stem resulted in a significantly higher rate of BMD loss in zones 6 and 7 compared with the β titanium alloys stem. These results may be due to differences in mechanical stiffness due to the different titanium alloy composition of the prosthetics.
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Arch Orthop Trauma Surg · May 2023
Incidence and treatment of intracapsular femoral neck fractures in Germany.
Intracapsular femoral neck fractures are one of the most common fractures in Germany. Nevertheless, the epidemiology and treatment modalities are not described comprehensively. For this reason, this study highlights the epidemiology of femoral neck fractures in different age groups and summarizes treatment strategies within the period from 2009 to 2019 based on nationwide data. ⋯ The incidence of intracapsular femoral neck fractures in Germany has been increasing continuously within the last decade. In particular, patients over 80 years suffered predominantly from this type of fracture. The majority was treated with a joint replacement procedure, mainly cemented hemiarthroplasty.
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Arch Orthop Trauma Surg · May 2023
Trans-fracture approach for ORIF of coronal shear fractures of the distal humerus.
Open reduction and internal fixation (ORIF) of comminuted coronal shear fractures of the distal humerus is challenging. When a concomitant lateral condyle fracture is present, it may be used for a trans-fracture approach to facilitate exposure and fracture reduction. This study aimed to investigate the frequency of lateral condyle fractures in coronal shear fractures of the distal humerus and analyze fracture reduction, fracture union and clinical results following ORIF through a trans-fracture approach. ⋯ Lateral condyle fractures are present in about one third of coronal shear fractures of the distal humerus. This injury can be used for a trans-fracture approach to facilitate exposure and to reliably achieve anatomic fracture reduction.
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Arch Orthop Trauma Surg · May 2023
A propensity score-matched comparison between Mako robotic arm-assisted system and conventional technique in total hip arthroplasty for patients with osteoarthritis secondary to developmental dysplasia of the hip.
The clinical effectiveness of robotic arm-assisted systems remains unclear for total hip arthroplasty (THA) in patients suffering from osteoarthritis secondary to developmental dysplasia of the hip (DDH). ⋯ The robotic arm-assisted system may provide more accurate cup placement in THA for DDH.
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Arch Orthop Trauma Surg · May 2023
Results of primary radial corrective osteotomy in Madelung's deformity.
The purpose of this study was the evaluation of surgical outcomes in a series of wrists with Madelung's deformity treated with radial corrective osteotomy. We hypothesize that this surgical technique is a suitable and safe way of treatment. ⋯ Radial corrective osteotomy was a suitable treatment of Madelung's deformity in our collective, although surgical outcomes are not yet fully satisfying.