Assessing the accuracy of femoral component placement in custom cemented hip replacement

Leg length disparity is a frequent complication of hip arthroplasty. The most common problem is lengthening of the operative leg, which usually occurs on the femoral side. The Belfast Hip Group has designed a femoral caliper that offers an effective solution to the problem. This instrument is accurate and easy to use and could be applied by the orthopaedic surgeon to control leg length. Patients' perception of the success of their total hip replacement is influenced by their ability to walk without appliances or pain. With minimal additional effort and planning, this caliper will ensure greater control of leg length measurement in total hip replacement patients.