Uncemented reverse total shoulder arthroplasty: is it a safe option for elderly patients with proximal humerus fractures?

Purpose: Reverse shoulder arthroplasty (RSA) is a common surgical procedure for elderly patients with proximal humerus fractures. Cement fixation of the humeral stem is considered the gold standard for this procedure. Due to the high prevalence of osteoporosis in this patient population, the risk of intraoperative fractures is increased when uncemented stems are used.

Understanding the Interaction of Thermal, Rheological, and Mechanical Parameters Critical for the Processability of Polyvinyl Alcohol-Based Systems during Hot Melt Extrusion.

Hot melt extrusion (HME) is a common manufacturing process used in the pharmaceutical industry to improve the solubility of poorly soluble active pharmaceutical ingredients (API). The goal is to create an amorphous solid dispersion (ASD) where the amorphous form of the API is stabilized within a polymer matrix. Traditionally, the development of pharmaceutically approved polymers has focused on requirements such as thermal properties, solubility, drug-polymer interactions, and biocompatibility.

Is malunion of the greater tuberosity after reverse shoulder arthroplasty in patients with complex proximal humerus fracture associated with worse clinical outcomes? A prospective cohort study.

Purpose: To assess patient outcomes following reverse shoulder arthroplasty in patients with complex proximal humerus fracture and the clinical implications of greater tuberosity malunions.

Methods: This prospective study included 56 patients who underwent RSA (DELTA XTEND™, DePuy Synthes, Warsaw, IN, USA) to treat proximal humerus fractures. We used a standardized suture technique to reattach the tuberosities.

Spinal cord injury and prescribed opioids for pain: a scoping review.

Objective: Spinal cord injury (SCI) is a life-altering neurological condition affecting physical and psycho-social functioning and associated high rates of pain. Thus, individuals with SCI may be more likely to be exposed to prescription opioids. A scoping review was conducted to synthesize published research findings on post-acute SCI and prescription opioid use for pain, identify literature gaps, and propose recommendations for future research.

Complications following arthroscopic-assisted coracoclavicular stabilization in patients with unstable lateral clavicle fractures.

Purpose: Lateral clavicle fractures are unstable and prone to nonunions, which is why they are often treated surgically rather than conservatively. Despite the variety of surgical techniques found in the literature, the best method for treating this rare fracture type has not yet been determined. Our case series aimed to describe a coracoclavicular (CC) reconstruction technique and to assess complications and patient outcomes 1 year postoperatively.

Increased injury severity and hospitalization rates following crashes with e-bikes versus conventional bicycles: an observational cohort study from a regional level II trauma center in Switzerland.

Background: As electric bicycles (e-bikes) become increasingly popular, reports of injuries associated with e-bike usage are also rising. Patterns, characteristics, and severity of injuries following e-bike crashes need further investigation, particularly in contrast to injuries from conventional bicycle crashes.

Methods: This prospective observational study included 82 patients treated at a Level II trauma center for injuries resulting from an electric or conventional bicycle crash.

Determination of feed forces to improve process understanding of Fused Deposition Modeling 3D printing and to ensure mass conformity of printed solid oral dosage forms.

Fused Deposition Modeling is a suitable technique for the production of personalized solid oral dosage forms. For widespread application, it is necessary to be able to print a wide range of different formulations to address individual therapeutic needs. Due to the complexity of formulation composition (e.

Perioperative blood transfusions in hip and knee arthroplasty: a retrospective assessment of combined risk factors.

Introduction: Accurate identification of patients at risk of blood transfusion can reduce complications and improve institutional resource allocation. Probabilistic models are used to detect risk factors and formulate patient blood management strategies. Whether these predictors vary among institutions is unclear.

Non-invasive continuous blood pressure monitoring (ClearSight™ system) during shoulder surgery in the beach chair position: a prospective self-controlled study.

Background: The beach chair position that is commonly used in shoulder surgery is associated with relative hypovolemia, which leads to a reduction in arterial blood pressure. The effects of patient positioning on the accuracy of non-invasive continuous blood pressure monitoring with the ClearSight™ system (CS-BP; Edwards Lifesciences, Irvine CA, USA) have not been studied extensively. Our research aim was to assess agreement levels between CS-BP measurements with traditional blood pressure monitoring techniques.

Tuberosity union in patients with proximal humerus fractures treated with reverse shoulder arthroplasty: a technical note and exploratory analysis.

Purpose: The use of reverse shoulder arthroplasty (RSA) to treat complex humerus fractures is increasing, especially in older, osteoporotic patients. Refixation and tuberosity healing are needed to achieve an optimal range of motion (ROM), external rotation, active forward elevation, and patient satisfaction. Proper healing has been reported, however, in only 40-84% of cases.

Is the Additional Effort for an Intraoperative CT Scan Justified for Distal Radius Fracture Fixations? A Comparative Clinical Feasibility Study.

Introduction: It is currently unclear whether the additional effort to perform an intraoperative computed tomography (CT) scan is justified for articular distal radius fractures (DRFs). The purpose of this study was to assess radiological, functional, and clinical outcomes after surgical treatment of distal radius fractures when using conventional fluoroscopy vs. intraoperative CT scans.

Polyaxial locking plate fixation in periprosthetic, peri-implant and distal shaft fractures of the femur : a comparison of open and less invasive surgical approaches.

Polyaxial locking plate fixation is a widely performed treatment for femoral shaft, periprosthetic, and peri-implant fractures in elderly patients. This study's purpose was to compare patient outcomes following the open technique (OT) and less invasive techniques (LIT). Data were gathered from 44 patients with 46 fractures treated with polyaxial locking plate between 2010-2015.

A retrospective analysis of surgical outcomes following direct anterior hip arthroplasty with or without a surgical extension table.

Purpose: Using a surgical extension table during total hip arthroplasty (THA) is widely considered state-of-the-art. However, intra-operative leg positioning requires additional time and leg length determination can be challenging. Our study's aim was to compare patient outcomes, particularly leg length precision, following surgery with or without an extension table.

A retrospective comparison of clinical and radiological outcomes using palmar or dorsal plating to treat complex intraarticular distal radius fractures (AO 2R3 C3).

Introduction: Complex intraarticular distal radius fractures are common, and treatment with open reduction and internal fixation (ORIF) can be done through either the palmar or dorsal approach. There is scant evidence, however, indicating which approach is more suitable. We compared clinical and radiological outcomes of patients with AO 2R3 C3 fractures surgically treated with one of these approaches.

Using mini-arthrotomy for dorsal plating to treat intraarticular distal radius fractures: can it improve radiological and clinical outcomes?

Purpose: Using palmar plating to treat complex intraarticular distal radius fractures is standard of care. However, fracture fragments can also be managed using a dorsal approach with arthrotomy, which is useful when treating fractures involving the dorsal joint aspect. We compared radiological and clinical outcomes after dorsal plating with or without an intraoperative arthrotomy.

Placement of TOF-Cuff® on the lower leg for neuromuscular and blood pressure monitoring during anesthetic induction for shoulder surgeries.

The aim of this study was to compare two devices for neuromuscular monitoring during anesthetic induction. TOF-Cuff was installed on the lower leg stimulating the tibial nerve, while the more conventional TOF-Scan was installed over the ulnar nerve at the wrist. Methods Twenty adult patients were enrolled in this prospective, controlled study.

The arthroscopic triple-row modified suture bridge technique for rotator cuff repair: functional outcome and repair integrity.

Background: The optimal technique for arthroscopic rotator cuff repair is still controversial. Large tears with a high grade of retraction have an especially high risk of retearing. This study reports the clinical and radiologic results of a triple-row modified suture bridge technique for the treatment of full-thickness rotator cuff tears with medium and high grades of retraction.

Application of a new polyester patch in arthroscopic massive rotator cuff repair-a prospective cohort study.

Background: Massive rotator cuff (RC) tears still present a clinically challenging problem, with reported rerupture rates in up to 94%. The study objective was to determine the impact of synthetic patch augmentation for massive RC tears.

Methods: Between June 2012 and 2014, we performed 50 arthroscopic RC reconstructions augmented with a synthetic polyester patch.

The traumatic acromion fracture: review of the literature, clinical examples and proposal of a treatment algorithm.

Purpose: Traumatic acromion fractures are rare and typically occur in patients with multiple fractures, which often delays diagnosis. Limited guidance exists on the treatment of these fractures. We present a review of the literature from the last 20 years and describe our experience in treating five patients-two conservatively and three with open reduction and internal fixations (ORIF).

Decision-making for complex scapula and ipsilateral clavicle fractures: a review.

Introduction: Complex scapula with ipsilateral clavicle fracures remains a challange and treatment recommendations are still missing.  This review provides an overview of the evolution of the definition, classification and treatment strategies for complex scapula and ipsilateral clavicle fractures. As with other rare conditions, consensus has not been reached on the most suitable management strategies to treat these patients.

Anatomical reconstruction to treat acromion fractures following reverse shoulder arthroplasty.

Purpose: Scapular fractures after reverse shoulder arthroplasty (RSA) are often associated with substantial shoulder impairment. Patient outcomes following either conservative or operative treatment have not been favourable, and consensus is lacking on the best treatment approach. We describe a technique for anatomic reconstruction of fractured lateral and basal acromion in patients at higher risk for diminished function or those for which conservative treatment has already failed.

Short- and long-term outcomes following hallux-valgus correction: a modified Kramer osteotomy.

Background: Short- and long-term assessments were performed of a modification to the Kramer osteotomy that developed to stabilize the metatarsal head using an angular implant, the LINK(®) internal hallux fixator (Waldemar LINK GmbH & Co. KG, Hamburg, Germany).

Methods: For this retrospective study, radiological assessments were used to measure outcomes in 72 feet with hallux valgus treated from 2006 to 2011.

Stability and Clinical Outcome after Reconstruction of Complete Triangular Fibrocartilage Disruption.

Purpose Patients with symptomatic instability of the distal radioulnar joint (DRUJ) after traumatic complete disruption of the triangular fibrocartilage complex (TFC) are best treated by anatomic reconstruction of the TFC. Postoperative clinical results from the literature are known but the improvement of DRUJ instability remains still challenging to quantify. We recently published a reliable and validated method to measure the instability of the DRUJ.

3D analysis of the proximal interphalangeal joint kinematics during flexion.

Background: Dynamic joint motion recording combined with CT-based 3D bone and joint surface data is accepted as a helpful and precise tool to analyse joint. The purpose of this study is to demonstrate the feasibility of these techniques for quantitative motion analysis of the interphalangeal joint in 3D.

Materials And Method: High resolution motion data was combined with an accurate 3D model of a cadaveric index finger.

A novel technique for detecting instability of the distal radioulnar joint in complete triangular fibrocartilage complex lesions.

We performed this study to investigate whether discrepancy of bilateral dorsovolar shift of the distal radioulnar joint (DRUJ) is decisive for the diagnosis of DRUJ instability. Although several cadaver studies have quantified the amount of physiological dorsovolar shift, so far, there is no reliable method of quantification of DRUJ mobility in daily practice. The aim was to describe a novel sonographic method of quantifying DRUJ instability and evaluate its reliability and validity.