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Bone Remodeling01:40

Bone Remodeling

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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Autologous Microfractured and Purified Adipose Tissue for Arthroscopic Management of Osteochondral Lesions of the Talus
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Locally generated bone slurry accelerated ankle arthrodesis.

Jacynda Wheeler1, Adam Sangeorzan, Sarah M Crass

  • 1Center of Excellence for Limb Loss Prevention and Prosthetic Engineering, Rehabilitation Research and Development, Department of veterans Affairs Medical Center, Seattle, WA, 98108, USA. jacyndawheeler@gmail.com

Foot & Ankle International
|July 11, 2009
PubMed
Summary

Ankle fusion healing was accelerated by using a bone slurry, a bone paste created from local bone surfaces. This method showed significantly higher bone bridging at 6 and 12 weeks compared to controls.

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Area of Science:

  • Orthopedic Surgery
  • Bone Healing Research
  • Surgical Innovation

Background:

  • Ankle fusion healing times vary widely (7-72 weeks).
  • High rates of non-union and delayed union necessitate improved techniques.
  • Bone graft and substitutes are increasingly used to enhance healing.

Purpose of the Study:

  • To evaluate if a bone slurry accelerates radiographic healing after ankle arthrodesis.
  • To compare bone bridging percentages in patients with and without bone slurry application.

Main Methods:

  • Retrospective comparison of two patient groups undergoing ankle arthrodesis over 3 years.
  • Group one received a bone slurry generated by a low-speed burr; Group two did not.
  • Radiographic assessment by two blinded reviewers at 6 and 12 weeks, measuring bone bridging percentage.

Main Results:

  • Group one (bone slurry) showed 94.1% bone bridging at 6 weeks vs. 76.4% in group two (p=0.0099).
  • At 12 weeks, group one had 98.1% bone bridging vs. 85.7% in group two (p=0.026).
  • Groups were comparable in age, gender, and diagnosis, with 32 patients in group one and 22 in group two.

Conclusions:

  • Generating a bone paste from local bone surfaces using a low-speed burr significantly increased bone healing.
  • The bone slurry technique was associated with a higher percentage of healed bone surface at 6 and 12 weeks.
  • This method offers a potential improvement for patients undergoing ankle arthrodesis.