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

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified February 2009 by Tennessee Orthopedic Alliance.
Recruitment status was:  Recruiting
Information provided by:
Tennessee Orthopedic Alliance Identifier:
First received: August 18, 2008
Last updated: February 5, 2009
Last verified: February 2009
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.

Condition Intervention
Arthritis Procedure: Total hip replacement

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Restoration of Leg Length, Offset, and Center of Rotation in Total Hip Replacement

Resource links provided by NLM:

Further study details as provided by Tennessee Orthopedic Alliance:

Primary Outcome Measures:
  • Leg Length and total offset [ Time Frame: 2 weeks ]

Estimated Enrollment: 100
Study Start Date: June 2007
Estimated Study Completion Date: April 2010
Estimated Primary Completion Date: April 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 1
Leg Length and offset measurement arm
Procedure: Total hip replacement
Total hip replacement typically preformed for hip arthritis
Other Name: Measurement Arm

  Show Detailed Description


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

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

Exclusion Criteria:

  • Non-english speaking
  • Need for a cemented femoral stem
  • Acute femoral neck fracture
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00738803

Contact: William Kurtz, MD 615-963-1437

United States, Tennessee
Baptist Hospital Recruiting
Nashville, Tennessee, United States, 37203
Sponsors and Collaborators
Tennessee Orthopedic Alliance
Principal Investigator: William B Kurtz, MD Tennessee Orthopedic Alliance
  More Information

Additional Information:
Responsible Party: William B Kurtz, Tennessee Orthopedic Alliance Identifier: NCT00738803     History of Changes
Other Study ID Numbers: 2615
Study First Received: August 18, 2008
Last Updated: February 5, 2009

Keywords provided by Tennessee Orthopedic Alliance:
leg length
hip arthroplasty
offset processed this record on September 19, 2017