AI Article Synopsis
- To perform successful total hip arthroplasty (THA), surgeons must accurately restore the patient's anatomical structure and soft-tissue tension, particularly focusing on the restoration of femoral offset.
- This review aims to define how femoral offset is measured, its significance in hip joint biomechanics, and how incorrect offset can lead to complications such as pain, instability, and decreased motor performance.
- The review also examines intraoperative factors and the selection and positioning of prosthetic implants to enhance stability and functional outcomes post-surgery.
Article Abstract
To perform total hip arthroplasty (THA) successfully, a surgeon must be able to place the implants in a position that will restore and duplicate the patient's baseline anatomy and soft-tissue tension. One of the critical factors is the restoration of femoral offset. It is the goal of this review to precisely define measurement of offset in THA, describe its role in hip joint biomechanics, outline alterations that can be performed intraoperatively, and explain how it can create potential pathologic states. If there is a lack of offset restoration, it can result in a host of complications, including bony impingement with pain, edge loading or prosthetic joint instability, and alterations in the muscle length-tension relationship leading to reduced motor performance. Excessive femoral offset can increase hip abductor muscle and iliotibial band tension resulting in greater trochanteric pain regardless of the surgical approach. The purpose of this review was to analyze intraoperative surgical factors, choice of prosthetic implant type and position that are required to maximize stability, and dynamic motor performance after THA.
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| http://dx.doi.org/10.5435/JAAOS-D-23-00931 | DOI Listing |
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