Notes

Mammalian SWI/SNF continuously reestablishes nearby use of chromatin.
The reuse of masks is not recommended by official organizations or manufacturers, and is only accepted in extraordinary cases, such as pandemics. The studies are characterized by having small samples, using different models of respirators adjusting their recommendation to the model.
There has been considerable interest in recent years for early discharge after arthroplasty. We endeavored to evaluate the safety of same-day discharge given the rapid uptake of this practice approach.

This is a retrospective observational cohort study of the American College of Surgeons National Surgical Quality Improvement Program registry database. We included patients who underwent total hip arthroplasty (THA) or total knee arthroplasty (TKA) between 2015 and 2018. We categorized length of stay (LOS) as same-day discharge (LOS= 0 days), accelerated discharge (LOS= 1 day), and routine discharge (LOS= 2-3 days). For each LOS cohort, we determined the incidence of major complications within 30 days (surgical site infection [SSI], reoperation, readmission, deep vein thrombosis [DVT], and PE) and evaluated risk using multivariate logistic regression analysis if incidence was >1%. Patients undergoing THA and TKA were evaluated independently.

The final study cohort consisted of 333,212 patients, includisame-day and accelerated discharge management is safe clinical practice for patients undergoing total joint arthroplasty, yielding a similar risk of major acute 30-day complications. Further clinical trials evaluating long-term major outcomes, including patient-reported outcomes and experiences, would offer further and definitive insight into this practice approach.
This large, observational, real-world study suggests that same-day and accelerated discharge management is safe clinical practice for patients undergoing total joint arthroplasty, yielding a similar risk of major acute 30-day complications. Further clinical trials evaluating long-term major outcomes, including patient-reported outcomes and experiences, would offer further and definitive insight into this practice approach.
Patients undergoing total hip arthroplasty (THA) frequently question surgeons on return to sports. We compared midterm sports participation and functional scores after THA by posterolateral approach (PLA) vs anterolateral approach (ALA).

Of 1381 patients who underwent uncemented ceramic-on-ceramic THA for primary osteoarthritis, 503 were excluded because of preoperative or postoperative lower limb surgery, leaving 594 operated by PLA and 284 by ALA. AZD9291 cost Forgotten Joint Score (FJS), Oxford Hip Score (OHS), satisfaction, as well as motivation, participation, and discomfort regarding 22 sports were collected. A 11 matching was performed to obtain 2 groups of PLA and ALA patients with similar age, gender, body mass index, and sports motivation.

Matching yielded 2 equal groups of 259 patients. There were no significant differences in FJS (P= .057), OHS (P= .685), satisfaction (P= .369), or rates of participation in light (P= .999), moderate (P= .632), or strenuous sports (P= .284). Participation in strenuous sports was reported by 50 PLA (19%) and 61 ALA (24%) patients, with differences for downhill skiing (22 vs 39), running (10 vs 19), and cross-country skiing (18 vs 10). More than 50% of motivated patients practiced most of their sports. Severe discomfort was reported similarly in PLA and ALA patients, mainly during running (13 vs 11), team ball games (9 vs 7), and downhill skiing (7 vs 8).

There were no significant differences between PLA and ALA patients in terms of OHS, FJS, satisfaction, or sports participation rates. There is little or no evidence to promote an approach based on sports participation or functional improvement.

Level III, comparative study.
Level III, comparative study.
Increasing global usage of cementless prostheses in total hip arthroplasty (THA) presents a challenge, especially for elderly patients. To reduce the risk of early periprosthetic femoral fractures (PFFs), a new treatment algorithm for females older than 60 years undergoing primary THA was introduced. The aim of this study was to determine the impact of the new treatment algorithm on the early risk of perioperative and postoperative PFFs and guideline compliance.

A total of 2405 consecutive THAs that underwent primary unilateral THA at our institution were retrospectively identified in the period January 1, 2013-December 31, 2018. A new treatment algorithm was introduced on April 1, 2017 with female patients aged older than 60 years intended to receive cemented femoral components. Before this, all patients were scheduled to receive cementless femoral components. Demographic data, number of perioperative and postoperative PFFs, and surgical compliance were recorded, analyzed, and intergroup differences compared.

The utilization of cemented components in female patients older than 60 years increased from 12.3% (n= 102) to 82.5% (n= 264). In females older than 60 years, a significant reduction in the risk in early postoperative and intraoperative PFF after introduction of the new treatment algorithm was seen (4.57% vs 1.25%; P= .007 and 2.29% vs 0.31%; P= .02, respectively). Overall risk for postoperative and intraoperative fractures combined was also reduced in the entire cohort (4.1% vs 2.0%; P= .01).

Use of cemented fixation of the femoral component in female patients older than 60 years significantly reduces the number of PFFs. Our findings support use of cemented femoral fixation in elderly female patients.
Use of cemented fixation of the femoral component in female patients older than 60 years significantly reduces the number of PFFs. Our findings support use of cemented femoral fixation in elderly female patients.
We aimed to compare the long-term clinical outcomes, complications, and survival of 2 revision stems with different geometries, extents of coating, and distal-locking mechanisms.

We retrospectively compared outcomes at a minimum of 7 years following revision THA using 2 proximally coated distal-locking stems 98 Ultime first-generation (G1) and 116 Linea second-generation (G2) stems. Ten-year Kaplan-Meier survival was assessed considering stem re-revision for any reason and for aseptic reasons. At final follow-up, Harris Hip Score and Oxford Hip Score were collected, and any thigh pain or complications were noted.

Considering re-revision for any reason, survival was 69% for G1 stems and 91% for G2 stems. Considering re-revision for aseptic reasons, survival was 77% for G1 stems and 92% for G2 stems. Re-revisions were due to fracture of 6 G1 stems but no G2 stems. Complications that required reoperation without stem or cup removal occurred in 3 of the G1 stems and 1 of the G2 stems. Compared to the G1 stems, the G2 stems resulted in better Harris Hip Score (83 vs 71, P= .
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