Journal of shoulder and elbow surgery
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J Shoulder Elbow Surg · May 2015
Blood transfusion in primary total shoulder arthroplasty: incidence, trends, and risk factors in the United States from 2000 to 2009.
Total shoulder arthroplasty (TSA) may be associated with substantial blood loss, and some patients require perioperative blood transfusion. Possible blood transfusion methods include predonated autologous blood transfusion, perioperative autologous blood transfusion, and allogeneic blood transfusion (ALBT). The purposes of the present study were to assess the incidence and recent trends over time of blood transfusion in TSA and analyze patient and hospital characteristics that affect the risk of ALBT. ⋯ The increase in overall blood transfusion rate in TSA found in the present study may be related to factors specific to TSA, such as the introduction of reverse total shoulder arthroplasty during the study period. A variety of patient and hospital characteristics contribute to the risk of undergoing ALBT.
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Surgical site infection (SSI) after joint arthroplasty is associated with prolonged hospitalization, reoperation, inferior outcomes, and substantial resource utilization. As the number of shoulder replacements performed in the United States continues to rise, measuring the incidence of inpatient SSI after hemiarthroplasty (HSA) and total shoulder arthroplasty (TSA), and associated risk factors for infection is worthwhile. ⋯ The small percentage of SSI that occurs during the initial inpatient stay after shoulder arthroplasty is related to diagnoses other than primary osteoarthritis in more infirm patients with low-income government insurance (Medicaid). Patients considering shoulder arthroplasty can use this information to help decide between the potential improvement in comfort and function of the shoulder and the potential for major adverse events such as infection.
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J Shoulder Elbow Surg · Apr 2015
Obesity is associated with increased postoperative complications after operative management of proximal humerus fractures.
Obesity has become a significant public health concern in the United States. The goal of this study was to assess the effect of obesity on postoperative complications after operative management of proximal humerus fractures by use of a national database. ⋯ Obesity and its resultant medical comorbidities are associated with increased rates of postoperative complications after operative management of proximal humerus fractures. Obese patients for whom operative management of proximal humerus fractures is planned should be counseled preoperatively about their increased risk for postoperative complications.
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Rupture of the pectoralis major tendon is increasing in incidence, with a spike in the number of reported cases in the last decade. This is commonly attributed to an increased interest in health, fitness, and weight training combined occasionally with concomitant use of anabolic steroids. It is essential for the diagnosis to be recognized and for the patient to be referred to a surgeon with expertise in dealing with these injuries so that appropriate and informed care can be implemented. ⋯ The combination of patient demographics and clinical features frequently yields an accurate diagnosis, but further imaging is helpful. Magnetic resonance imaging with dedicated sequencing is the investigation of choice and can aid in diagnosis, surgical planning, and providing important information about prognosis and outcome. Early surgery is preferable, but good outcomes in the chronic setting are achievable. With a detailed understanding of the anatomy, direct repair to bone is possible with either transosseous or anchor repair techniques in acute and the majority of chronic cases. In chronic cases in which direct repair is not achievable, autograft and allograft reconstruction should be considered.
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J Shoulder Elbow Surg · Apr 2015
Effects of the humeral tray component positioning for onlay reverse shoulder arthroplasty design: a biomechanical analysis.
Recent shoulder prostheses have introduced a concept of a universal humeral stem component platform that has an onlay humeral tray for the reverse total shoulder arthroplasty (RTSA). No studies have reported how humeral tray positioning can affect the biomechanics of RTSA. ⋯ Positioning the humeral tray with posterior offset offers a biomechanical advantage for patients needing RTSA by decreasing superior impingement and increasing the internal rotational moment arm of the subscapularis, without creating inferior impingement.