The Journal of arthroplasty
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Cryotherapy is widely used as an emergency treatment of sports trauma and postoperatively especially after anterior cruciate ligament reconstruction. Studies in the literature on the effect of cryotherapy after total knee arthroplasty (TKA) have been limited and controversial. In this prospective study, 60 primary TKAs were done on 30 patients (all staged bilateral TKAs). ⋯ The other TKA in the same patient (control TKA) was done 6 weeks later and had no cooling device. The study compared the range of motion, the volume of hemovac output and blood loss, visual analog pain score, analgesic consumption, and wound healing in the 2 limbs of the same patient. This study showed that continuous-flow cold therapy is advantageous after TKA because it provides better results in all the areas compared.
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One-staged ipsilateral and contralateral total hip and total knee arthroplasties were compared. A total of 103 patients underwent a 1-staged total knee arthroplasty and total hip arthroplasty between January 1975 and July 1997 (67 contralateral and 36 ipsilateral patients). No prostheses were found to be loose or revised. ⋯ There was no significant difference in survival between the contralateral and ipsilateral groups. There was only 1 death within 3 months of the operation. The severity of these patients' deformity may necessitate these procedures be done at 1 operation with consideration of mortality and morbidity risks.
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Sleep apnea syndrome (SAS) is a condition of repeated episodes of apnea and hypopnea during sleep. It can cause life-threatening morbidities, including cardiac arrhythmia and ischemia, hypertension, and respiratory arrest, and even death. ⋯ There were 19 patients with a preoperative diagnosis of moderate or severe SAS; 15 patients received continuous positive airway pressure or bilevel positive airway pressure noninvasive ventilation, 1 patient experienced respiratory arrest secondary to intraoperative propafol, and 2 patients developed postoperative respiratory depression. Avoidance of opioids and sedative drugs, awareness of the possibility of acute airway obstruction, and close monitoring during and after surgery are vital in patients with SAS.
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This study evaluated the improvement in range of motion after revision total knee arthroplasty (TKA) in a consecutive series of patients with TKAs presenting with pain and limited range of motion. Eleven stiff (range of motion <70 degrees ) and painful TKAs were revised with a posterior stabilized condylar prosthesis and reviewed after an average of 37.6 months (range, 24-53 months). ⋯ Pain scores improved from 4.5 to 44.1, and all 11 patients were satisfied. This study shows that knee range of motion can improve significantly after revision TKA.
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Concern about the safety of allogeneic blood transfusion, including the risk of viral infection and immunosuppression, has led to the development of transfusion options in total joint arthroplasty, including intraoperative and postoperative blood salvage, autologous donation, hemodilution, and the use of epoetin alfa. Intraoperative or postoperative blood salvage has been shown not to be cost-effective at our institution except in revision hip arthroplasties because not enough blood is collected. Autologous donation is not helpful. ⋯ The most efficient way to decrease allogeneic risk in these patients is epoetin alfa. Epoetin alfa decreases allogeneic risk to 12.9%, which is acceptable. Patients with preoperative hemoglobin >14 g/dL undergoing single total knee or total hip arthroplasty do not need anything because their allogeneic risk is minimal.