Select a Community
Are you sure you want to trigger topic in your Anconeus AI algorithm?
You are done for today with this topic.
Would you like to start learning session with this topic items scheduled for future?
Use of a high offset femoral component
94%
4289/4582
Decreasing neck length
0%
17/4582
Use of a low offset femoral component
1%
65/4582
Increasing the head size
52/4582
Medializing the acetabular component
3%
145/4582
Select Answer to see Preferred Response
Restoration of an appropriate tension to the abductors should be a primary goal in THA and high offset stems are a tool to assist in increasing tension and improving stability in the appropriate patient. A disadvantage of higher offset stems may be lateral prominence and trochanteric bursitis in thin patients. Incavo et. al demonstrated that potential benefits of a high offset stem included improved joint stability and avoidance of leg lengthening. Stability is improved by increasing soft tissue tension through restoring the abductor moment arm laterally in high offset stems. Illustration A shows how use of a high offset femoral component increases abductor tension without changing the length of the leg. Illustration B shows a diagram representing the calculation of a joint reaction force through the hip. High offset stems will also decrease the joint reaction force.
3.8
(22)
Please Login to add comment