Evaluation of Weight Bearing After Total Hip and Knee Replacement

Evaluation of Weight Bearing in Patients After Total Hip and Knee Replacement

The regime in the aftercare after total hip and knee arthroplasty(THA/TKA) differs a lot between orthopedic surgeons concerning weight bearing. The type of implant and the way of implants' anchoring are considered.

In the literature there is no data so far about the way patient take care of the recommended weight bearing during the first 6 weeks after THA and TKA.

Over a one year period starting August 2010 all patients undergoing TKA or THA at the investigators institution will have a technical device in their shoes (sole) to measure the load in each step they do in these shoes during the first 6 weeks. Patients are asked to fill out a standardised pain protocol every day (VAS) and document need of pain medication. The investigators recommend 20kg of weight on the operated leg for 6 weeks and full weight bearing at the end of week six.

The investigators believe that patients will adjust weight bearing to their level of pain and not to their surgeons recommendations.

Inclusion Criteria:

• received a THA or TKA in the mentioned period of time
• is able to walk on crutches
• is able to understand our recommendations
• signed informed consent

Exclusion Criteria:

• not able to walk on crutches
• not able to understand our recommendations
• other deformities of lower limbs