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Article Abstract
Therapeutic Level I . See Instructions for Authors for a complete description of levels of evidence.
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How does subscapularis repair affect joint loads? Effect of humeral tray thickness in Reverse Total Shoulder Arthroplasty (rTSA).
Orthop Traumatol Surg Res
September 2025
Universitary Insitute of Locomotion and Sport, Pasteur II Hospital, Nice, France.
Background: This study aimed to evaluate how subscapularis tendon repair influences joint loads in relation to humeral offset and arm position.
Patients And Methods: Two fresh-frozen, whole-body cadaveric shoulders underwent a reverse total shoulder arthroplasty (rTSA) on the humeral side using an internal proprietary load-sensing system (LSS) (Goldilocks, Statera Medical, Montreal, Canada). In addition to three "complex" Activity Daily Life positions ("behind the back", "overhead reach", and "across the chest"), four standard postures (external rotation, extension, abduction, and flexion) were used to record the glenohumeral loads (Newtons) and their locations applied to the implant.
Surgical Reconstruction Techniques for Irreparable Subscapularis Tears Provide Functional Improvement but Variable Failure Rates: A Systematic Review.
J ISAKOS
September 2025
McMaster University Division of Orthopaedic Surgery, Hamilton, ON, Canada; Oakville Trafalgar Memorial Hospital, Division of Orthopaedic Surgery, Oakville, ON, Canada.
Introduction/objectives: Irreparable subscapularis tears can cause severe functional impairment and present significant clinical challenges. Current treatment options include tendon transfers (TTs), anterior capsular reconstruction, and reverse shoulder arthroplasty. Each approach has distinct biomechanical advantages and limitations, but there remains no consensus regarding the optimal treatment.
View Article and Find Full Text PDFUse of saline solution to reverse interscalene block-induced phrenic nerve palsy: a case report.
Rev Esp Anestesiol Reanim (Engl Ed)
September 2025
Instituto Nacional de Rehabilitación, Ciudad de México, Mexico.
Brachial plexus block at the interscalene level is a regional anesthetic technique widely used to provide analgesia in shoulder and upper extremity surgery; However, it is associated with a high incidence of phrenic nerve block with diaphragmatic paralysis which has clinical implications in patients with underlying respiratory disease, showing respiratory difficulty symptoms. As consequence, it has been contraindicated in certain population groups. Once diaphragmatic paralysis and respiratory symptoms are established, management is supportive and expectant.
View Article and Find Full Text PDFPhysical model test on soil slopes under the effect of bedrock fault dislocations.
PLoS One
September 2025
School of Geological Engineering, Institute of Disaster Prevention, Langfang 065201, China.
Bedrock fault dislocations significantly influence the rupture instability of rock and soil slopes adjacent to fault zones. Understanding the dynamic processes, kinematic characteristics, and genesis mechanisms of landslides induced by strong seismic fault dislocations is crucial for advancing the theoretical framework of landslide studies. This paper presents a representative experiment simulating the emergence of seismic faults (internal rupture belts within the soil mass) at the shoulders and toes of slopes due to bedrock fault dislocations.
View Article and Find Full Text PDFEffect of Social Deprivation on Treatment Strategy and Patient-Reported Outcomes of Proximal Humerus Fractures.
J Am Acad Orthop Surg
August 2025
From the Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, MO (Gutbrod, Herbosa, Wilson, and Miller), the Department of Orthopedic Surgery, Cedars Sinai Medical Center, Los Angeles, CA (Hong), the Institute for Informatics, Washington University School of Medicin
Introduction: Treatment approaches and functional outcomes have been shown to be influenced by a patient's socioeconomic status in certain orthopaedic pathologies. In patients with proximal humerus fractures (PHFs), this study aimed to evaluate the relationship between social deprivation and (1) treatment strategy-including the choice between surgical and nonsurgical management, as well as the type of surgical intervention-and (2) patient-reported outcomes.
Methods: We retrospectively reviewed 275 displaced PHFs from a level 1 trauma center.