Medical Study – More than 95% less wear with highly crosslinked PE vs. conventional PE Updated 6/20/08May 2008
Two randomized clinical studies investigating two types of highly crosslinked polyethylene sockets show significantly decreased wear rates with highly crosslinked polyethelene compared to conventional polyethylene at 5 years.“Use of highly crosslinked instead of conventional polyethylene (PE) reduced wear by more than 95%,” said Georgios Digas, MD, “Our findings support the continued use of the highly crosslinked PE.”
- Digas G, Kärrholm J, Thanner J, et al. Five-year experience of highly cross-linked polyethylene in cemented and uncemented sockets. Acta Orthopaedica. 2007;78 (6):746-754.
Link http://www.sciencedaily.com/releases/2007/11/071129085737.htmLong-term Improvement Seen With Hip ReplacementScienceDaily (Dec. 4, 2007) — Total hip arthroplasty (THA), or hip replacement, is an effective treatment for osteoarthritis (OA), but most studies have only followed patients for up to one year. Researchers examined patients after an average of eight years following hip replacement and found a long-term positive impact on their physical functioning…
…The authors conclude that the study adds to the accumulating evidence of the long-term benefits of hip replacement, especially in patients with more severe changes seen on X-rays, and that perhaps these patients should be given higher priority for the … Read the Rest
Health First and Wuesthoff have decided to ban smokers from their properties. That’s okay as long as they know their property ends at the sidewalk.
These types of policies could lead to the very real risk that valuable employees, including nurses who happen to smoke, will be lost by these two organizations.
These health care outfits will be better served to redirect their time, effort and money to curtail a dangerous threat to patients and staff members alike. The threat is Methicillin-resistant Staphylococcus Aureus, or MRSA.
In Jan. 2001, my wife underwent total hip replacement surgery at Holmes … Read the Rest
Thirty-year results of a prospective study of Charnley Total Hip Arthroplasty by the Posterior Approach
Thirty-year results of a prospective study of Charnley Total Hip Arthroplasty by the Posterior ApproachUpdated 7/2/09Read Complete Study Here: http://www.ncbi.nlm.nih.gov/pubmed/17826273Mullins MM, Norbury W, Dowell JK, Heywood-Waddington M.
Broomfield Hospital, Department of Orthopaedics, Broomfield, Chelmsford, CM1 7ET Essex, UK.
We present the results of 228 consecutive Charnley low friction hip arthroplasties, performed in 193 patients, between July 1972 and December 1976…..Our survivorship results show a 10-year survival of 93% deteriorating to a 30-year survival of 73% (+/-6.1). T
Read Complete Study Here :http://www.jbjs.org.uk/cgi/content/abstract/82-B/1/97
C. L. E. Gerritsma-Bleeker, MD, Orthopaedic Registrar; R. Deutman, MD, PhD, Orthopaedic Surgeon; Th. J. Mulder, MD, PhD, Orthopaedic Surgeon; and J. D. J. Steinberg, MD, Radiologist Department of Orthopaedic Surgery, Martini Hospital, PO Box 30.033, 9700 RM Groningen, The Netherlands.
From a series of 135 patients (146 prostheses) who had had primary hip replacement in 1975 and 1976 we reported the outcome at ten years in 83 surviving patients in 1988 and that at 15 years in 44 surviving patients in 1994. Now, 22 years after the operation, we have reviewed the 21 … Read the Rest
Women have higher THA revision rates than men study 2013
February 19, 2013
Read Complete Study Here
Women have a 29% higher risk of implant failure than men for total hip arthroplasty, according to a study published in JAMA Internal Medicine…
…”Using a cohort of 35,140 hip arthroplasties from a U.S. Total Joint Replacement Registry, the risk of revision in females compared to males was evaluated. After considering patient, surgical, surgeon, volume and implant-specific risk factors, females had a 29% higher risk of implant failure than males in this community-based sample…”
Study: With hip replacements, women fare less well than men
Newsday – New York – February 18, 2013
Women seem to fare less favorably than men following total hip-replacement surgery, according to a large medical analysis that comes in the wake of continuing federal scrutiny into certain types of implants.
Researchers in California who studied more than 35,000 cases of artificial hip implants found women have a slightly higher risk of implant failure compared with men regardless of the type of device that was implanted…… Read the Rest
Researchers find vitamin K reduces INR levels in patients with hip fractures taking warfarin
Read Original Article Here
October 15, 2013
PHOENIX – Patients with hip fractures who also take warfarin have a quicker correction of INR when they receive vitamin K within 4 hours of admission, according to study results presented at the Orthopaedic Trauma Association Annual Meeting, here.
…Jacob Lantry, MD, said. “Early administration of resulted in 75% of patients having surgery within 24 hours.”
…Patients who received vitamin K had a 1.3 correction in their INR within 24 hours compared with the control group, according to … Read the Rest
Correcting uneven limbs after hip replacement
Read full article here: http://abclocal.go.com/wls/story?section=news/health&id=9407082
January 25, 2014
It’s one of the most troublesome and yet little known problems that occur after total hip replacement: Thousands of patients left with one leg longer than the other…
… More than 300,000 hip replacement surgeries are performed each year, and by 2030 that number is expected to nearly double. But as those numbers grow, so do the chances of complications, like one leg being longer or shorter than the other. Imagine a one-and-a-half inch difference in limbs…
… Studies show leg length inequalities are a preventable … Read the Rest
Types of X-Rays or Imaging the Hip
Patients are placed in standardized positions or “views” which were developed to facilitate quick recognition of normal versus abnormal bone structure. In the case of radiographs of the hip, the most frequently used views are:
- Anteroposterior (AP) hip
- Lateral (“frog-leg”)
- AP Pelvis, including upper femora (bilateral)
Radiographs are commonly used to evaluate hip fractures, bone lesions or arthritis. They are also the initial imaging modality of choice for evaluating a patient with hip pain, or evaluating a patient following trauma. Other imaging techniques which may be used for supplemental information include:
- CT- can
Tribology and Total Hip Arthroplasty Implants
Read Complete Article Here
Define tribology and discuss its effect on total hip arthroplasty (THA).
Tribology is defined as the science of interacting surfaces in relative motion and includes the principles of friction, lubrication, and wear of implant materials. Tribology of the articulating materials in THA is the most important issue for long-term survival of the implants because the fixation of implants either with or without cement has reached excellent long-term survival rates up to 20 years. Because the long-term success … Read the Rest