Restoration of Leg Length, Offset, and Center of Rotation in Total Hip Replacement

Status unconfirmed · Not applicable

Conditions studied: Arthritis

In brief

The investigators aim to demonstrate the ability to accurately measure and restore leg length, offset, and center of rotation during a total hip replacement through a new technique that uses the femoral component as a measurement tool. The operative technique requires inserting the femoral component prior to performing the femoral neck osteotomy. After the femoral component is implanted, a reference guide is attached to the femoral component and guides a screw into the ilium at a fixed distance from the femoral component. The pre-arthroplasty measurements of leg length and offset are recorded. The femoral neck osteotomy is performed, and the native femoral head is removed and measured. The acetabular socket is prepared and the acetabular component is inserted. A repeat measurement with trial modular neck components is taken and allows the surgeon an additional opportunity to accurately recreate leg length and offset with the final component. The reference screw is removed from the ilium and the incision is closed.

Key facts

Study ID

NCT00738803

Run by

Tennessee Orthopedic Alliance

People needed

100

Starts

2007-06-01

Expected to finish

2010-04-01

Last updated by the study team

2009-02-06

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Hip arthritis requiring a total hip replacement through a superior approach

You may not qualify if…

• Non-english speaking
• Need for a cemented femoral stem
• Acute femoral neck fracture

Where it is running

• Baptist Hospital — Nashville, Tennessee, United States (enrolling)

Full record on ClinicalTrials.gov

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