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Related Concept Videos

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All bones comprise an outer layer of compact bone, and an interior made up of spongy bone tissue, also called cancellous or trabecular bone. In long bones, spongy bone tissue is mainly found in the interior of the epiphyses (broad ends of the bone).
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Most bones contain compact and spongy osseous tissue, but their distribution and concentration vary based on the bone's overall function.
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Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
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The hyoid bone is a small U-shaped bone located in the upper neck at the level of the inferior mandible, with its tips pointing posteriorly. It does not directly articulate with any other bone in the body. The hyoid acts as the attachment site for the tongue, the larynx, and the pharynx. It is held in position by a series of small muscles attached from above or below. These muscles help to move the hyoid up/down or forward/back in coordination with movements of the tongue, larynx, and pharynx...
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Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
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Optimizing Acetabular Component Bone Ingrowth: The Wedge-Fit Bone Preparation Method.

Dani M Gaillard-Campbell1, Thomas P Gross1

  • 1Midlands Orthopaedics & Neurosurgery, 1910 Blanding Street, Columbia, SC 29201, USA.

Advances in Orthopedics
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PubMed
Summary
This summary is machine-generated.

A modified wedge-fit bone preparation technique for hip resurfacing significantly reduced acetabular component failure due to poor bone ingrowth and early cup shift, improving patient outcomes.

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Area of Science:

  • Orthopedic Surgery
  • Biomaterials Engineering
  • Medical Device Design

Background:

  • Hip resurfacing arthroplasty (HRA) faces challenges with acetabular component fixation.
  • Failure due to lack of bone ingrowth and early cup shift are significant clinical concerns.

Purpose of the Study:

  • To evaluate a modified acetabular bone preparation technique, the
  • wedge-fit method
  • to mitigate bone ingrowth failure and cup shift.
  • To assess the impact of this technique on unexplained pain post-surgery.

Main Methods:

  • A retrospective analysis comparing pre- and post-November 2011 cohorts.
  • Modified technique involved adjusting reaming based on bone density (T-score) and implementing an
  • apex relief
  • procedure.
  • Data collected on bone ingrowth failure, cup shift, and unexplained pain.

Main Results:

  • Acetabular ingrowth failure decreased from 0.5% to <0.1%.
  • Cup shift rate reduced from 1.1% to 0.4%.
  • Unexplained pain incidence between 2-4 years postoperatively declined from 2.6% to 1.3%.

Conclusions:

  • The wedge-fit acetabular preparation technique enhances initial implant stability.
  • This method effectively reduces early cup shift, unexplained pain, and acetabular ingrowth failure in hip resurfacing.
  • The findings support the clinical utility of tailored bone preparation in HRA.