Assessment of Inter- and Intrasurgeon Variability in Preoperative Planning of Reverse Shoulder Arthroplasty: A Multicenter Evaluation.

 To evaluate the intra and intersurgeon variability regarding the positioning and selection of implants in reverse shoulder arthroplasty.  A cross-sectional study assessed computed tomography images of the shoulder joint of patients diagnosed with degenerative joint diseases. The study team included seven specialists in shoulder surgery, representing six different institutions.

Tenascin-C-Matrix Metalloproteinase-3 Phenotype and the Risk of Tendinopathy in High-Performance Athletes: A Case-Control Study.

Tendon structure is predominantly composed of the extracellular matrix (ECM), and genetic variants in non-collagenous ECM components may influence susceptibility to tendinopathy. We investigated the potential influence of single nucleotide polymorphisms (SNPs) in fibrillin-2 (), tenascin-C (), and matrix metalloproteinase-3 () on the tendon regeneration failure phenotype and impact on the susceptibility to tendinopathy in Brazilian high-performance athletes. This case-control study was conducted with 397 high-performance athletes from different sports modalities (197 tendinopathy cases and 200 controls), and they were analyzed by validated TaqMan SNP genotyping assays of the SNPs (rs331079), (rs2104772), and (rs591058).

Gradual Correction of Valgus Deformities of the Tibia Using a Monolateral External Fixator.

Objective: To present a review of patients subjected to gradual correction of a valgus deformity of the tibia using a monolateral external fixator.

Method: This retrospective review included patients from January 2012 to May 2022 who met the following inclusion criteria: deviation of mechanical axis of the limb due to valgus deformity of the tibia; tibial deformity in the coronal plane on radiographic examination; a documented outpatient pre-operative evaluation by an orthopaedic surgeon and age between 10 and 70 years. The following exclusion criteria were applied: the presence of another tibia deformity preventing gradual correction using the proposed assembly; skin conditions incompatible with the surgical procedure; inadequate pre- or post-operative radiological evaluation; and insufficient information in the medical records.

Lateral Gradual Opening Osteotomy of the Tibia With Monolateral External Fixator for Correcting the Valgus Deformity of the Tibia.

The valgus deformity in the tibia requires correction because it places increased pressure on the lateral compartment of the knee, intensifying the degenerative process. Correction strategies are diverse and depend on patient profile, age, and soft-tissue conditions as well as the orthopaedic surgeon's experience with different surgical materials. Deformity size and location are the primary factors contributing to material and shape choice, whether gradual or acute.

Correlation Between Implant Positioning and Functional Outcomes in Partial Shoulder Resurfacing.

 The present study aimed to correlate functional outcomes and implant positioning in a case series of partial shoulder resurfacing arthroplasties.  A total of 25 patients were assessed for range of motion, functional outcome per the University of California at Los Angeles (UCLA) score and radiographic findings. Pre- and postoperative data were compared.

Impact of the Strategies Adopted to Face the COVID-19 Pandemic in a Brazilian Reference Institute for High Complexity Surgery in Orthopedics and Traumatology.

COVID-19 pandemics required substantial reorganization and adaptation of healthcare services all over the world. This study aims to analyze the effect of operational strategies implemented in Brazil to manage the extra strain placed on healthcare services by the COVID-19 pandemic of 2020. In particular, this investigation examines the strategy to convert an institute specialized in elective orthopedic procedures of high complexity into a trauma unit for all musculoskeletal trauma patients of an entire federative unit.

Shoulder Arthroplasty for the Treatment of Proximal Humeral Fractures: Current Concepts.

Complex proximal humeral fractures, especially in elderly patients, often require arthroplastic surgical treatment. Traditionally, shoulder hemiarthroplasty (HA) is the method of choice, resulting in long implant survival and a painless shoulder; however, shoulder HA has heterogeneous clinical outcomes related to the correct position of the implant, both in terms of height and version, and the anatomical consolidation of tuberosities. Today, reverse shoulder arthroplasties are increasingly used to treat such fractures.

Risk Factors for Coracoid Graft Osteolysis after the Open Latarjet Procedure.

 Coracoid osteolysis has been described as a possible complication after the Latarjet procedure. The aim of the present study was to investigate the incidence and risk factors associated to coracoid graft osteolysis and to correlate them with clinical results.  A retrospective review of 38 Latarjet procedures was conducted.

Proprioceptive deficit after total elbow arthroplasty: an observational study.

Background: During total elbow arthroplasty (TEA), most of the joint capsule is removed, including many mechanoreceptors important for proprioception, which potentially limits the patient's postoperative functional recovery. We quantified proprioceptive loss by measuring the threshold to detection of passive motion (TTDPM) in patients after unilateral TEA compared with the contralateral side.

Methods: A continuous passive motion device moving the elbow at 0.

ESRRB polymorphisms are associated with comorbidity of temporomandibular disorders and rotator cuff disease.

Temporomandibular disorders (TMD) are associated with comorbidity. Shoulder pain is among the symptoms associated with TMD. The purpose of this study was to investigate the association between TMD and rotator cuff disease (RCD) and related genetic aspects.

Reverse arthroplasty of the shoulder for treating rotator cuff arthropathy.

Objective: to present a retrospective analysis on the clinical-functional results and complications among patients with rotator cuff arthropathy (RCA) who underwent reverse arthroplasty of the shoulder.

Methods: patients with a diagnosis of RCA associated with pseudoparalysis of anterior elevation who underwent reverse arthroplasty of the shoulder with a minimum follow-up of one year were selected.

Results: preoperative information was gathered from our shoulder and elbow arthroplasty register, comprising age, sex, laterality, history of previous procedures, Constant's functional scores and the preoperative range of motion as described in the protocol of the American Academy of Shoulder and Elbow Surgery (ASES).

Treatment of complex acute proximal humerus fractures using hemiarthroplasty.

Objective: Evaluate the clinical and radiological results of hemiarthroplasty for treatment of complex proximal humerus fractures.

Methods: Sixty-seven patients were included, with follow-up of 12 to 62 months. Mean age was 65 years (44 to 88), and 47 patients were female (70%).