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Hip News

Getting Back Into Action After Short-Stem Hip Replacement

More than ever before, adults are seeking and receiving hip replacements at a younger age and with the intent of remaining active in recreational and sports activities. In this report, a team of surgeons describe their success using short-stem hip replacements for adults who were very active before surgery. The majority of patients in this group of patients returned to sports afterwards as well.

Short-stem implants are just as the name implies. The long part of the implant referred to as the "stem" fits down inside the femur (thigh bone). The surgeon reams out bone inside the femur in order to set the stem down inside and stabilize the implant. With a short-stem implant, less bone is removed making it possible to consider revision surgery later if it is needed.

Patients were selected carefully for this study from a group of adults less than 65 years of age and with no hip deformities. The ratio of men to women was 60 per cent men and 40 per cent women. They had to have good bone stock with no sign of osteoporosis (bone thinning or decreased bone density). They were all given the same short-stem implant with a ceramic femoral head using a modified minimally invasive surgical procedure.

The main measure used in this study to report outcomes was sports participation before and after hip replacement. Various measurements were used such as frequency of sports play (how often each week) and duration of participation (number of minutes each session). They also looked at how long it took for each patient to get back to regular and full participation in sports. And the patients rated their pain from zero (no pain) to 10 (worst pain) during the post-operative time period.

Anyone who did not return to sports was asked for their reasons. And everyone was asked about their overall satisfaction with the results. The group was asked if they experienced fear, insecurity, and/or pain during sports activities. The patients also completed surveys indicating stiffness and level of function after surgery.

Most of the people in the study were able to return to sports participation. But they tended to gravitate toward lower impact activities, which the surgeons thought was a better idea all around. High-impact activities such as running, jogging, or tennis are not advised by most surgeons.

Patients who engage in these types of activities must be warned of the increased risk of implant failure. However, this study did not support the idea that high-impact activities are necessarily detrimental to the short-stem implant. Patients who progressed slowly from low to high-impact activities and sports were very successful.

The authors suggest several factors that might account for the continued good success with short-stem hip implants. First, the surgery is performed with less invasive technique. This allows for less pain, better post-operative motion, faster healing, and a speedier recovery.

Second, improvements have been made in the implant design, which also makes the procedure easier. And third, younger patients in better physical condition before surgery are able to begin rehab sooner and recover with fewer problems or complications.

To summarize, there are more and more adults in need of hip replacement who want (and expect) to stay active. The short-stem implant used to conserve bone in younger patients was studied to see if patients can remain active without loosening or fracturing the implant. Results were excellent with a high degree of patient satisfaction based on return-to-sports at a level desired by the patients.


Florian Schmidutz, MD, MSc, et al. Sports Activity After Short-Stem Hip Arthroplasty. In The American Journal of Sports Medicine. February 2012. Vol. 40. No. 2. Pp. 425-432.

04/12/2012

*Disclaimer:* The information contained herein is compiled from a variety of sources. It may not be complete or timely. It does not cover all diseases, physical conditions, ailments or treatments. The information should NOT be used in place of visit with your healthcare provider, nor should you disregard the advice of your health care provider because of any information you read in this topic.
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