Restoration of Hip Geometry after Femoral Neck Fracture: A Comparison of the Femoral Neck System (FNS) and the Dynamic Hip Screw (DHS).

Background: The femoral neck system (FNS) was introduced as a minimally invasive fixation device for managing femoral neck fractures.

Objective: To compare radiographic, clinical, and patient-reported outcome measures (PROMs) of femoral neck fracture patients following FNS compared to dynamic hip screw (DHS) implantation combined with an anti-rotational screw.

Methods: Patients who underwent closed reduction and internal fixation of a femoral neck fracture between 2020 and 2022 were retrospectively included.

Arthroscopically assisted single tunnel reconstruction for acute high-grade acromioclavicular joint dislocation with an additional acromioclavicular joint cerclage.

Purpose: Purpose of this study was to demonstrate that a single tunnel reconstruction of high-grade acromioclavicular (AC) joint instabilities with implants of the second generation is sufficient for stabilisation, especially in combination with an AC cerclage.

Methods: Patients with an acute AC-joint dislocation type Rockwood III-B and V were included. Besides clinical follow-up examination, radiographs were analysed.

[Complex pelvic trauma : A case report with special consideration of the accompanying urogenital injury].

The following case report shows a young male patient with a complex pelvic trauma due to a traffic accident. In addition to the pelvic ring fracture, he also suffered a severe accompanying injury to the efferent urinary tract in combination with extensive damage of the lumbosacral plexus. Multiple extensive operations were necessary to address the C3 fracture of the pelvic ring and the bladder injury.

Defect Characteristics of Reverse Hill-Sachs Lesions.

Background: Little scientific evidence regarding reverse Hill-Sachs lesions (RHSLs) in posterior shoulder instability exists. Recently, standardized measurement methods of the size and localization were introduced, and the biomechanical effect of the extent and position of the defects on the risk of re-engagement was determined.

Purpose: To analyze the characteristics and patterns of RHSLs in a large case series using standardized measurements and to interpret the results based on the newly available biomechanical findings.