Orthopedics
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Using Ceramic-on-Ceramic Bearings in Total Hip Arthroplasty Necessitating 44- or 46-mm Metal Shells.
Ceramic-on-ceramic articulation shows the lowest wear, with a low incidence of osteolysis. A small cup limits options regarding liner thickness and femoral implant size. The purpose of this study was to evaluate the safety of a 4-mm-thick ceramic liner and the outcomes of cementless total hip arthroplasty using a 44- or 46-mm metal shell and a ceramic-on-ceramic bearing at mid- to long-term follow-up. ⋯ Two hips underwent revision because of periprosthetic fractures. The survival rates of the acetabular cups and the femoral stems were 100% and 97.4%, respectively. The thin (4 mm) ceramic liner did not increase the risk of ceramic fracture and did not affect the mid- to long-term results and survival of cementless total hip arthroplasty using 44- or 46-mm metal shells. [Orthopedics. 2018; 41(3):e354-e359.].
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The SARS-CoV-2 (COVID-19) pandemic has had a global influence on health care. The authors examined the early effect of hospital- and state-mandated restrictions on an orthopedic surgery department and hypothesized that the volume of ambulatory clinic encounters, office and surgical procedures, and cases would dramatically decrease. A retrospective review was performed of all encounters in an orthopedic surgery department at a level I academic trauma center during a 4-week period, from March 16, 2020, to April 12, 2020. ⋯ During the first 4 weeks after COVID-19-related restrictions were imposed, an immediate and dramatic effect was observed. Compared with the control periods, significant reductions were seen in the volume of ambulatory encounters, office-based procedures, and surgical cases. In addition, the volume of nonelective surgical cases decreased by 51%. [Orthopedics. 2020;43(4):228-232.].
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The SARS-CoV-2 (COVID-19) crisis has strained hospitals and health systems across the world. In the United States, New York City has faced a surge of cases as the epicenter of the North American outbreak. Northwell Health, as the largest regional health system in New York City, has implemented various practices and policies to adapt to the evolving situation and prepare for future global events. [Orthopedics. 2020;43(4):245-249.].
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Randomized Controlled Trial Comparative Study
Comparison of 3 Minimally Invasive Methods for Distal Tibia Fractures.
This study compared the results of external fixation combined with limited open reduction and internal fixation (EF + LORIF), minimally invasive percutaneous plate osteosynthesis (MIPPO), and intramedullary nailing (IMN) for distal tibia fractures. A total of 84 patients with distal tibia shaft fractures were randomized to operative stabilization using EF + LORIF (28 cases), MIPPO (28 cases), or IMN (28 cases). The 3 groups were comparable with respect to patient demographics. ⋯ Although EF + LORIF was associated with fewer secondary procedures vs MIPPO or IMN, it was related with more pin-tract infections (14.3%). Findings indicated that EF + LORIF, MIPPO, and IMN all achieved similar good functional results. However, EF + LORIF had some advantages over MIPPO and IMN in reducing operative and radiation times, postoperative complications, and reoperation rate. [Orthopedics. 2016; 39(4):e627-e633.].
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Randomized Controlled Trial Comparative Study
The Prolonged Analgesic Efficacy of an Ultrasound-Guided Single-Shot Adductor Canal Block in Patients Undergoing Total Knee Arthroplasty.
In this prospective, randomized, placebo-controlled study, the authors compared the analgesic efficacy of the single-shot adductor canal block (SS-ACB) vs the continuous adductor canal block (C-ACB) with intermittent boluses during the 72-hour postoperative period. Seventy-five patients randomly received the following: a single shot of 20 mL of 0.5% ropivacaine preoperatively followed by intermittent saline boluses at 12 hours and 24 hours postoperatively (SS-ACB group); 20 mL of 0.5% ropivacaine preoperatively and 12 hours and 24 hours postoperatively (C-ACB group); or saline preoperatively and postoperatively (control group). The primary outcome was visual analog scale pain scores with movement on postoperative day 1. ⋯ Further, each adductor canal catheter cost $80. Patients who received a single block reported more satisfaction with their pain-relief treatment. Given the similar analgesic effect but better quadriceps muscle strength, easier execution, and higher patient satisfaction, the SS-ACB may be more suitable for total knee arthroplasty patients than the C-ACB. [Orthopedics. 2018; 41(5):e607-e614.].