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An underlying diagnosis of osteonecrosis of bone is associated with worse outcomes than osteoarthritis after total hip arthroplasty

Overview of attention for article published in BMC Musculoskeletal Disorders, January 2017
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58 Mendeley
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Title
An underlying diagnosis of osteonecrosis of bone is associated with worse outcomes than osteoarthritis after total hip arthroplasty
Published in
BMC Musculoskeletal Disorders, January 2017
DOI 10.1186/s12891-016-1385-0
Pubmed ID
Authors

Jasvinder A. Singh, Jason Chen, Maria C. S. Inacio, Robert S. Namba, Elizabeth W. Paxton

Abstract

Well-designed studies of complications and readmission rates in patients undergoing total hip arthroplasty (THA) with osteonecrosis are lacking. Our objective was to examine if a diagnosis of osteonecrosis was associated with complications, mortality and readmission rates after THA. We analyzed prospectively collected data from an integrated healthcare system's Total Joint Replacement Registry of adults with osteonecrosis vs. osteoarthritis (OA) undergoing unilateral primary THA during 2001-2012, in an observational cohort study. We examined mortality (90-day), revision (ever), deep (1 year) and superficial (30-day) surgical site infection (SSI), venous thromboembolism (VTE, 90-day), and unplanned readmission (90-day). Age, gender, race, body mass index, American Society of Anesthesiologists class, and diabetes were evaluated as confounders. We used logistic or Cox regression to calculate odds or hazard ratios (OR, HR) with 95% confidence intervals (CI). Of the 47,523 primary THA cases, 45,252 (95.2%) had OA, and 2,271 (4.8%) had osteonecrosis. Compared to the OA, patients with osteonecrosis were younger (median age 55 vs. 67 years), and were less likely to be female (42.5% vs. 58.3%) or White (59.8% vs. 77.4%). Compared to the OA, the osteonecrosis cohort had higher crude incidence of 90-day mortality (0.7% vs. 0.3%), SSI (1.2% vs. 0.8%), unplanned readmission (9.6% vs. 5.2%) and revision (3.1% vs. 2.4%). After multivariable-adjustment, patients with osteonecrosis had a higher odds/hazard of mortality (OR: 2.48; 95% CI:1.31-4.72), SSI (OR: 1.67, 95%CI:1.11-2.51), unplanned 90-day readmissions (OR: 2.20; 95% CI:1.67-2.91) and a trend towards higher revision rate 1-year post-THA (HR: 1.32; 95% CI: 0.94-1.84), than OA patients. Compared to OA, a diagnosis of osteonecrosis was associated with worse outcomes post-THA. A detailed preoperative discussion including the risk of complications is needed for informed consent from patients with osteonecrosis.

Twitter Demographics

The data shown below were collected from the profile of 1 tweeter who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 58 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Spain 1 2%
Unknown 57 98%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 11 19%
Researcher 7 12%
Student > Doctoral Student 7 12%
Student > Master 6 10%
Other 4 7%
Other 13 22%
Unknown 10 17%
Readers by discipline Count As %
Medicine and Dentistry 28 48%
Nursing and Health Professions 4 7%
Biochemistry, Genetics and Molecular Biology 3 5%
Engineering 3 5%
Psychology 2 3%
Other 5 9%
Unknown 13 22%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 09 March 2017.
All research outputs
#6,656,519
of 9,171,443 outputs
Outputs from BMC Musculoskeletal Disorders
#1,593
of 2,242 outputs
Outputs of similar age
#170,806
of 253,833 outputs
Outputs of similar age from BMC Musculoskeletal Disorders
#35
of 50 outputs
Altmetric has tracked 9,171,443 research outputs across all sources so far. This one is in the 23rd percentile – i.e., 23% of other outputs scored the same or lower than it.
So far Altmetric has tracked 2,242 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.4. This one is in the 21st percentile – i.e., 21% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 253,833 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 26th percentile – i.e., 26% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 50 others from the same source and published within six weeks on either side of this one. This one is in the 20th percentile – i.e., 20% of its contemporaries scored the same or lower than it.