Describing the infraspinatus bare area of the proximal humerus: An anatomic cadaveric study.

Background: The purpose of this study was to define the proximal humerus infraspinatus bare area in a human cadaveric model.

Methods: Ten fresh-frozen shoulder specimens were used. A deltopectoral approach was utilized for exposure.

Reverse shoulder arthroplasty for proximal humerus fractures and reverse shoulder arthroplasty for elective indications should have separate Current Procedural Terminology (CPT) codes.

Background: Reverse shoulder arthroplasty (RSA) for fracture currently shares a single Current Procedural Terminology (CPT) code with RSA for arthropathy despite potential differences in patient factors, procedural demands, postoperative care and needs, and overall hospital systems' resource utilization. We hypothesize that patients indicated for RSA for fracture will have greater medical complexity, require longer operative duration, have higher complication rates, demonstrate inferior functional outcomes, and require greater health care cost expenditures compared to a cohort undergoing RSA for rotator cuff arthropathy.

Methods: A total of 383 RSAs were retrospectively reviewed from January 2011 to December 2020.

Exploring Impact and Variability of Research Productivity Among Academic Orthopaedic Leaders.

Introduction: Assessing scholarly contributions in academic orthopaedic surgery remains challenging, despite the importance of publication productivity in evaluating academic leaders. The Hirsch (h)-index and its derivative, the m-index, offer objective measures to compare and evaluate publication productivity. The primary aims of this study were to compare h- and m-indices of department chairs and residency program directors of orthopaedic training programs in the United States and assess the association between h-index and program rank.

Patellar resurfacing in contemporary total knee arthroplasty: Frequency of complications in a matched cohort.

Introduction: Optimum patient selection and outcomes following patellar resurfacing are ongoing debates amongst the arthroplasty community. This study compared the outcomes of patients who had a total knee arthroplasty (TKA) with patellar resurfacing to those left with their native patella.

Methods: A retrospective review of 1941 TKAs performed between 2016 and 2020 was conducted.

The ipsilateral olecranon tip is a suitable anatomic autograft for unrepairable coronoid fractures: A comparative three-dimensional mapping analysis.

Background: Perform computed tomography (CT) three-dimensional (3D) mapping analysis of the ipsilateral olecranon tip to determine its suitability as an autograft for unrepairable coronoid fractures.

Methods: CT was evaluated using Mimics 13.0 and 3-matic software (Materialise, Inc.

Investigation of process parameters for modeling of ceramic composite SiSiC IN dry EDM (DEDM) cutting.

The manufacturing industry is currently grappling with issues related to energy dissipation and product quality, both of which significantly impact productivity. In addressing this pertinent concern, this study endeavours to identify the key indicators that contribute a crucial role in machining process. The Dry EDM (DEDM) emerges as a novel technology, wherein environmentally friendly gases serve as an alternative dielectric medium instead of liquid EDM approaches.

Effects of fluid composition in fluid injection experiments in porous media.

Experiments on fluid flow in porous media, using fluids loaded with solids of various grain sizes, have been conducted in a modified Hele-Shaw setup. This setup utilised weakly cemented porous media with specific hydraulic and mechanical properties. Fluid injection in coarse granular media with clean or low-concentration fine particles, results in infiltration only, with pressure close to the material tensile strength, while injection in finer granular material causes damage alongside infiltration, with the fluid pressure still close to the material tensile strength.

Accuracy of intraoperative approximation of pelvic tilt using preoperative standing radiographs.

Background: Anterior approach surgeons who utilize intraoperative fluoroscopy often try to match a preoperative radiograph as a reference for intraoperative cup position. Every degree of inaccuracy in tilt leads to a roughly 0.7° change in anteversion.

In Vitro Antioxidant and Inhibitory Study of (Kutki), (Loung), (Henna), (Revand Chini), (Haldi) Against Lipid Per-Oxidation in Mice Brain and Liver.

The aerobic organisms not only need oxygen for survival, but oxygen is also fundamentally malignant to the aerobic organism on the grounds of free radical generation and their affiliation with free oxidative stress. This study was done to evaluate the antioxidant and protective properties of , , , , and against lipid peroxidation induced by different pro-oxidants. The aqueous extracts of these medicinal plants showed inhibition against thiobarbituric acid reactive species (TBARS) induced by different pro-oxidants (10 mM FeSO4 and 5 mM sodium nitroprusside) in the brain and liver of mice.

Seronegative Rheumatoid Arthritis Secondary to Immune Checkpoint Inhibitor in a Renal Cell Carcinoma Patient Encountered in a Rural Community-Based Rheumatology Clinic: A Case Report.

Immune checkpoint inhibitors (ICIs) are a widely used class of cancer immunotherapy. Those drugs have improved the treatment of cancer since its introduction in the 2000s. Nivolumab is an ICI that can be used for previously untreated renal cell carcinoma.

Coronal and Sagittal Component Position in Contemporary Total Knee Arthroplasty: Targeting Native Alignment Optimizes Clinical Outcomes.

Background: Advanced technologies, like robotics, provide enhanced precision for implanting total knee arthroplasty components; however, optimal component position and limb alignment remain unknown. This study sought to identify sagittal and coronal alignment targets that correlate with minimal clinically important differences (MCIDs) in patient-reported outcome measures (PROMs).

Methods: A total of 1,311 consecutive total knee arthroplasties were retrospectively reviewed.

Reliability of the Modified Radiographic Union Score for Tibia Fractures (mRUST) for Femoral Shaft Fractures.

Objectives: To evaluate the interobserver and intraobserver reliability of the modified Radiographic Union Score for Tibia Fractures (mRUST) and the effect of rater experience in evaluation of femoral fractures.

Design: Retrospective cohort study.

Setting: Single Level 1 trauma center.

Cost Analysis of Conversion Total Knee Arthroplasty: A Multi-Institutional Database Study.

Background: Total knee arthroplasty (TKA) after prior knee surgery, also known as conversion TKA (convTKA), has been associated with higher complications, resource utilization, time, and effort. The increased surgical complexity of convTKA may not be reflected by the relative value units (RVUs) assigned under the current U.S.

Transitioning from the Posterior Approach to the Direct Anterior Approach for Total Hip Arthroplasty.

Purpose: Total hip arthroplasty (THA) using the direct anterior approach (DAA) is known to have a learning curve. The purpose of this study was to review cases where surgery was performed by an arthroplasty surgeon transitioning from the posterior approach (PA) to the DAA. We hypothesized similar complication rates and improvements in surgical duration over time.

Health care disparities in surgical treatment of rotator cuff disease.

Background: Health care disparities have been well-documented in literature to affect care and recovery after surgery. Insurance type is regularly cited by orthopedic surgeons to play a role in the incongruences faced by patients in the perioperative period. Recent trends highlight an increased reluctance by some insurance companies to approve indicated surgery.

Telehealth in Orthopedic Sports Medicine: A Survey Study on Patient Satisfaction and Experience.

Telehealth has seen breakthroughs in many fields of medicine, but utilization remains limited in orthopedic sports medicine. The purpose of this investigation was to compare patient satisfaction, duration of care, and overall patient experiences with telehealth and in-person clinical visits for sports-related injuries. A cross-sectional survey study was conducted at an orthopedic sports medicine clinic during the peak of the COVID-19 pandemic between March and November 2020.

Surgically Treated Pectoralis Major Tears Impact the Play and Performance of National Football League Athletes.

To evaluate the return-to-play rate and performance level changes in National Football League (NFL) athletes after a surgically treated pectoralis major muscle (PMM) tear. A descriptive epidemiologic study was conducted. All NFL players from 1933 to 2013 were reviewed for surgically treated PMM tears.

Selective Patella Resurfacing in Contemporary Cruciate Retaining and Substituting Total Knee Arthroplasty: A Matched Cohort Analysis.

Background: Leaving the patella unresurfaced in total knee arthroplasty (TKA) is increasing due to modern patella-friendly implants, awareness that complications are not uncommon with resurfacing, and knowledge that historical studies were scientifically confounded. This study examined the effect of selective patellar resurfacing on patient-reported outcome measures (PROMs) using modern implants and techniques in cohorts rigorously matched for demographics and osteoarthritis severity.

Methods: A total of 166 TKAs performed without patellar resurfacing were case-control matched to 166 TKAs with patella resurfacing.

The Long Head of the Biceps Myotendinous Junction Is Located 1.14 Centimeters Distal to the Proximal Border of the Pectoralis Major Tendon: An Anatomic Study.

Purpose: To describe the proportional anatomic relationship of the long head of the biceps tendon (LHBT) myotendinous junction (MTJ) to pectoralis major tendon (PMT) and to provide an up-to-date review of the current literature.

Methods: Ten fresh frozen cadaveric specimens were used. A deltopectoral approach was used for exposure and anatomical location of the MTJ as well as the proximal and distal borders of the PMT were identified by 2 fellowship-trained shoulder and elbow surgeons.

Risk factors for complications within 30 days of operatively fixed periprosthetic femur fractures.

Background: With a rising number of periprosthetic femur fractures (PPFFs) each year, the primary objective of our study was to quantify risk factors that predict complications following operative treatment of PPFFs.

Methods: A retrospective cohort study of 231 patients with a periprosthetic femur fracture was conducted at an Academic, Level 1 Trauma Center. The main outcome measurement of interest was complications, as defined by the ACS-NSQIP, within 30 days of surgery.

Delayed surgical repair of the deltoid following acromioplasty: a case report.

Currently, the literature contains few studies that describe any potential complications following arthroscopic acromioplasty. Because part of the anterior deltoid originates from the anterior acromion, there is a risk for violation and subsequent iatrogenic rupture or avulsion during this procedure. This type of injury can be a devastating problem for patients that may lead to poor function and debilitating pain.

Utility of Plasma Protein Biomarkers and Mid-infrared Spectroscopy for Diagnosing Fracture-related Infections: A Pilot Study.

Objectives: To compare a large panel of plasma protein inflammatory biomarkers and mid-infrared (MIR) spectral patterns in patients with confirmed fracture-related infections (FRIs) with those in controls without infection.

Design: Prospective case-control study.

Setting: Academic, Level 1 trauma center.