The Role of Inlay and Inset Glenoid Implants in Anatomic Total Shoulder Arthroplasty.

Anatomic total shoulder arthroplasty is an established treatment for degenerative conditions involving the shoulder. One well-described complication of total shoulder arthroplasty is glenoid loosening, especially in younger and more active patients. As a result, several surgeons recommend against activities that may put patients at risk of implant failure after shoulder arthroplasty.

Common Injuries in Female Competitive Softball Players.

The popularity of softball is rising among female athletes with more than two million players between the ages of 12 and 18 competing per year. As participation rates increase, the frequency of injuries related to softball is on the rise. Softball injuries can differ from baseball injuries, and only a small amount of current literature focuses exclusively on softball injuries.

Techniques for Managing the Subscapularis and Addressing Failures of the Tendon in Anatomic Total Shoulder Arthroplasty.

Anatomic total shoulder arthroplasty (aTSA) is an accepted treatment for a variety of degenerative conditions of the glenohumeral joint. The manner in which the subscapularis tendon is handled during the approach in aTSA is not universally agreed on. Failure of the repair after aTSA has been shown to be associated with poorer outcomes in some cases.

Patient- and Procedure-Specific Variables Associated With Removal or Revision of Radial Head Arthroplasty.

Introduction The purpose of this retrospective review was to identify risk factors associated with removal or revision following radial head arthroplasty. Methods Patients undergoing primary radial head arthroplasty between 2009 and 2015 with a minimum follow-up of 1 year were identified. Descriptive and bivariate statistics were used to analyze the characteristics of patients requiring implant removal or revision and multivariable analysis was performed to calculate hazard ratios.

The association between critical shoulder angle and revision following anatomic total shoulder arthroplasty: a matched case-control study.

Hypothesis: The concept of the critical shoulder angle (CSA) was introduced in 2013, with studies showing that larger CSA is associated with rotator cuff tears (RCTs) and smaller CSA with glenohumeral osteoarthritis. We hypothesized outcomes following total shoulder arthroplasty (TSA) would differ depending on CSA.

Methods: We conducted a matched case-control study using Kaiser Permanente's Shoulder Arthroplasty Registry to identify patients who underwent primary elective anatomic TSA for the diagnosis of osteoarthritis from 2009-2018.

The effect of a statewide COVID-19 shelter-in-place order on shoulder arthroplasty for proximal humerus fracture volume and length of stay.

Background: Although the COVID-19 pandemic has disrupted elective shoulder arthroplasty throughput, traumatic shoulder arthroplasty procedures are less apt to be postponed. We sought to evaluate shoulder arthroplasty utilization for fracture during the COVID-19 pandemic and California's associated shelter-in-place order compared to historical controls.

Methods: We conducted a cohort study with historical controls, identifying patients who underwent shoulder arthroplasty for proximal humerus fracture in California using our integrated electronic health record.

Early revision in anatomic total shoulder arthroplasty in osteoarthritis: a cross-registry comparison.

Background: We evaluated anatomic total shoulders undergoing early revision (less than two years) in the Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR) and the Kaiser Permanente Shoulder Arthroplasty Registry (KPSAR).

Methods: A cross-sectional comparison of both registries was performed between the years of 2009 and 2012. Only patients who underwent anatomic total shoulder arthroplasty for a primary diagnosis of osteoarthritis were included.

Characteristics of Rotator Cuff Repairs Revised to Shoulder Arthroplasty.

Background: Successful repair of a torn rotator cuff may prevent progression to rotator cuff arthropathy. However, previous studies have shown a substantial rate of failure after rotator cuff repair and characteristics of surgically repaired rotator cuffs that go on to shoulder arthroplasty have not been fully elucidated. The purpose of this study was to determine the patient characteristics and rate at which patients who underwent rotator cuff repair progressed to shoulder arthroplasty.

Arthroscopic Repair of a Displaced Tuberosity Fragment After Proximal Humerus Locking Plate Fixation: A Case Report.

Case: Locking plate fixation of proximal humerus fractures is known to have high complication rates. Even a technically well-performed surgery can be subject to loss of reduction, which can lead to an adverse functional outcome for the patient. In this case report, we describe a patient who underwent open reduction and internal fixation of a proximal humerus fracture complicated by delayed loss of reduction of a greater tuberosity fragment that was revised using arthroscopic techniques.

The association between glenoid component design and revision risk in anatomic total shoulder arthroplasty.

Introduction: Anatomic total shoulder arthroplasty (TSA) is a proven treatment for glenohumeral joint osteoarthritis, with superior results compared with hemiarthroplasty. However, glenoid component loosening remains a problem and is one of the most common causes of failure in TSA. Multiple component designs have been developed in an attempt to reduce loosening rates.

Risk Factors for Re-Revision Surgery in Shoulder Arthroplasty.

Introduction: Revision shoulder arthroplasty is an expensive undertaking with notable morbidity to the patient and less predictable outcomes. Therefore, it is important to avoid even further surgery in these patients. We sought to report the annual revision burden from a large integrated healthcare system and identify patient and operative factors that may predispose patients to revision failure, necessitating further surgery.

Same-day discharge is not inferior to longer length of in-hospital stay for 90-day readmissions following shoulder arthroplasty.

Background: Shoulder arthroplasty is a common orthopedic procedure, performed historically in the inpatient setting. However, interest in same-day discharge has increased. We sought to evaluate 90-day readmission, 90-day emergency department (ED) visit, 90-day deep infection, 90-day venous thromboembolism (VTE), and 1-year mortality after same-day shoulder arthroplasty compared with an inpatient stay.

Lower-extremity total joint arthroplasty in shoulder arthroplasty patients: does the order of the lower-extremity total joint arthroplasty matter?

Background: As total joint arthroplasty (TJA) utilization increases, arthroplasties of multiple joints in a patient are more common. An understanding of the success of shoulder arthroplasty patients also requiring a lower-extremity (hip or knee) TJA is lacking. We evaluated the following questions: (1) Is there a difference in the revision risk following shoulder arthroplasty in patients who also undergo a lower-extremity TJA compared with those who do not? (2) Does the revision risk differ depending on the sequence of the procedures?

Methods: Patients who underwent elective primary shoulder arthroplasty from 2009 through 2015 were identified using Kaiser Permanente's shoulder arthroplasty registry.

Perioperative Clindamycin Use in Penicillin Allergic Patients Is Associated With a Higher Risk of Infection After Shoulder Arthroplasty.

Background: This study determines whether infection rates differ between prophylactic antibiotic use for patients with or without penicillin allergy before shoulder arthroplasty surgery.

Methods: Seven thousand one hundred forty primary shoulder arthroplasties operated between 2005 and 2016 were identified. We compared deep surgical site infection risk of patients who received perioperative vancomycin alone (6.

Diabetes Disease Severity Was Not Associated with Risk of Deep Infection or Revision After Shoulder Arthroplasty.

Background: Prior studies have identified diabetes and disease severity (defined using hemoglobin A1c [HbA1c]) as potential risk factors for complications after shoulder arthroplasty. Evaluations of diabetes status and risk of adverse outcomes beyond the 30-day window either are limited or have not accounted for disease severity. Further, measures of diabetes severity other than HbA1c have yet to be investigated in a shoulder arthroplasty population.

Risk Factors for Mortality and Readmission After Shoulder Hemiarthroplasty for Fracture.

Background: Limited information exists regarding mortality and readmission following proximal humerus fracture. This study examines risk factors following hemiarthroplasty for these fractures.

Methods: A retrospective analysis of prospectively collected data on 788 patients treated with hemiarthroplasty for acute proximal humerus fracture from January 2005 to December 2011 was conducted.

The increasing role of reverse total shoulder arthroplasty in the treatment of proximal humerus fractures.

Introduction: Hemiarthroplasty of the shoulder is a well established treatment for proximal humerus fractures not amenable to open reduction internal fixation. However, orthopedic surgeons have recently increased utilization of reverse total shoulder arthroplasty (RTSA) in the treatment of these injuries. The purpose of this study was to evaluate the use of hemiarthroplasty and RTSA between 2009 and 2016 for the treatment of proximal humerus fractures within a large United States integrated healthcare system.

Risk factors for postoperative opioid use after elective shoulder arthroplasty.

Background: The opioid epidemic remains a serious issue in the United States with significant impact to the medical and socioeconomic welfare of communities. We sought to determine baseline opioid use in patients undergoing shoulder arthroplasty (SA) and identify patient characteristics, comorbidities, and surgical risk factors associated with postoperative opioid use.

Methods: A Shoulder Arthroplasty Registry identified the number of dispensed opioid medication prescriptions (Rxs) in the first postoperative year in patients who underwent elective primary SA from 2008 to 2014.

Mortality After Total Knee and Total Hip Arthroplasty in a Large Integrated Health Care System.

Context: The number of excess deaths associated with elective total joint arthroplasty in the US is not well understood.

Objective: To evaluate one-year postoperative mortality among patients with elective primary and revision arthroplasty procedures of the hip and knee.

Design: A retrospective analysis was conducted of hip and knee arthroplasties performed in 2010.

Effect of Age on Outcomes of Shoulder Arthroplasty.

Context: Outcomes of total shoulder arthroplasty (TSA) and reverse total shoulder arthroplasty (RTSA) as a function of age are not well known.

Objective: To understand the effects of age on revision rate, mortality, and hospital readmissions.

Design: A retrospective cohort study of prospectively collected data.

Complications in total shoulder and reverse total shoulder arthroplasty by body mass index.

Introduction: The purpose of this study was to identify the effects of body mass index (BMI) on long-term outcomes (revision rate, 1-year mortality rate, 3-year surgical site infection rate, and 90-day inpatient all-cause readmission rate) after total shoulder arthroplasty (TSA) and reverse TSA (RTSA).

Methods: A large shoulder arthroplasty registry was used to review outcomes after TSA and RTSA. The registry monitors patient's revision, mortality, infection, and readmission rates.

Yearly Trends in Elective Shoulder Arthroplasty, 2005-2013.

Objective: To evaluate the change in incidence rate of shoulder arthroplasty, the utilization of shoulder arthroplasty for specific indications, and the surgeon volume trends associated with these procedures between 2005 and 2013.

Methods: A population-based cohort study was conducted using the more than 7 million members of an integrated health care system in California. Cases of shoulder arthroplasties performed between 2005 and 2013 were identified using a shoulder arthroplasty registry.