Left: Young mice, before puberty (2 weeks old), have many nestin-positive (green) mesenchymal stem cells (MSCs) in the primary spongiosa to maintain or build bone mass during bone elongation initiated by the growth plate above. Right: Mice treated with the glucocorticoid prednisolone are missing that population of cells, contributing to the development of osteoporosis. The nuclei of cells are shown in blue. / Courtesy of Mei Wan, Ph.D.

Tool Identifies Risk for Dislocations After THA

Jonathan Vigdorchik, M.D., assistant professor of orthopedic surgery and associate fellowship director of the Division of Adult Reconstructive Surgery at NYU Langone Health, and his colleagues set out to learn more about who exactly is at risk for postop total hip arthroplasty (THA) dislocations…and what can be done about it.

Dr. Vigdorchik, study co-author, told OTW, “In the past, surgeons minimally thought about who was at risk for a complication prior to surgery.”

“Hip replacement is a great procedure with a low complication rate, so it was not really necessary to think about. However, recently with the increasing quality of care from bundled payment initiatives, surgeons are paying attention to things that can help decrease risk of complications such as infection and readmission.”

“A big part of this is dislocation in THA, as it is the most common cause of revision THA. Therefore, we sought out to determine which patients are at higher risk of dislocation and what can we do to prevent this from happening.”

“Beginning in 2016, surgeons used the standardized risk prediction model and treatment algorithm developed at NYU Langone, which factored in data collected from preoperative imaging taken while the patient was sitting and standing, and other measures that might affect risk for dislocation, including presence of degenerative spinal pathology, spinal deformity, or a prior lumbar fusion. Using the risk assessment tool, the researchers identified 192 of 1,009 patients as high risk for a dislocation after surgery.”

Leave a comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.