Oxford, Harris, WOMAC, or iHOT?
For hip arthroscopy, which patient outcome measures would you choose?
In a retrospective review of prospectively collected data on hip arthroscopy patients, Duquesne University and University of Pittsburgh researchers focused on the iHOT system and tightened up the scoring for Minimal Clinically Important Difference (MCID) and Substantial Clinical Benefit (SCB), a tool that measures patients’ readiness to return to an active lifestyle.
The study, “Minimal Clinically Important Difference and Substantial Clinical Benefit Values for the 12-Item International Hip Outcome Tool,” was published in the January 4, 2019 edition of Arthroscopy.
RobRoy Martin, Ph.D., P.T., with Duquesne University and the University of Pittsburgh and study co-author explained the purpose and objective of the study to OTW: “Surgeons want to know if their patients have improved and are they normal. While there was evidence to support the use of the iHOT-12 there was no evidence to interpret changes in score at 1-year post-hip arthroscopy. In other words, surgeons using the International Hip Outcome Tool (iHOT-12) did not know if a change in score on the iHOT-12 was meaningful and what the score at 1–year follow-up actually meant. This study help to answer those questions.”
To help answer those questions, the authors enrolled 733 patients (537 female, 196 male) who met the inclusion criteria and, using the iHOT-12 measures, “At a mean of 352 days after surgery, 536 patients were in the ‘improved’ group and 197 were in the ‘not improved’ group…”
Specifically, the research team found that “…an increase in iHOT-12 score of 28 points is associated with a perceived functional improvementat 1 year (+/- 1 month) following hip arthroscopy.Related to iHOT-12 scores, a patient who scored 86 points or better was likely to have a normal rating of function, whereas a patient with a score of 56 points or less was likely to have an abnormal rating of function at 1 year (+/- 1 month) following hip arthroscopy.”
Other authors on this work were Benjamin R. Kivlan, Ph.D., P.T., John J. Christoforetti, M.D., Andrew B. Wolff, M.D., Shane J. Nho, M.D., M.S., John P. Salvo Jr., M.D., Thomas J. Ellis, M.D., Geoff Van Thiel, M.D., M.B.A., Dean K. Matsuda, M.D., and Dominic S. Carreira, M.D.
