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Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
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Cell therapy for posttraumatic shoulder osteonecrosis.

J Hernigou1, C Bastard2, A Dubory2

  • 1Department of Orthopaedic and Traumatology Surgery, EpiCURA hospital, Baudour/Hornu, Belgium.

Morphologie : Bulletin De L'Association Des Anatomistes
|December 14, 2020
PubMed
Summary
This summary is machine-generated.

Bone marrow mesenchymal stem cell implantation combined with core decompression (CD) significantly reduces humeral head collapse in osteonecrosis of the humeral head (ONHH) compared to CD alone. This cell therapy offers improved survival rates and better outcomes, especially in early-stage disease.

Keywords:
Cell therapy for shoulder osteonecrosisCore decompression for shoulder osteonecrosisHumeral head fracturePosttraumatic humeral head osteonecrosisShoulder osteonecrosis

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Area of Science:

  • Orthopedics
  • Regenerative Medicine
  • Biomaterials Science

Background:

  • Osteonecrosis of the humeral head (ONHH) following proximal humerus fracture can lead to significant morbidity.
  • Traditional treatments like simple core decompression (CD) have limited efficacy, particularly in preventing humeral head collapse.
  • Novel therapeutic approaches are needed to improve outcomes for ONHH patients.

Purpose of the Study:

  • To compare the clinical and radiological outcomes of bone marrow mesenchymal stem cell (MSC) implantation with traditional simple core decompression (CD) for ONHH.
  • To evaluate the efficacy of cell therapy in preventing humeral head collapse and improving survival rates.
  • To assess the impact of cell therapy on disease progression and the need for arthroplasty.

Main Methods:

  • Retrospective matched pair case-control study of 64 patients with ONHH.
  • Thirty patients received bone marrow-derived MSC injection (cell therapy group), while 34 received simple CD (control group).
  • Mean follow-up of 7 years, assessing radiological progression, Constant score, visual analogue scale, collapse, and arthroplasty conversion rates.

Main Results:

  • Cell therapy group showed significantly lower humeral head collapse rates (10% vs. 74%, P<0.0001) compared to the CD group.
  • Humeral head survival (absence of arthroplasty) was significantly higher in the cell therapy group (93%) versus the CD group (26%, P=0.0001).
  • Early-stage ONHH (pre-collapse) demonstrated superior outcomes with cell therapy.

Conclusions:

  • Core decompression with bone marrow mesenchymal stem cell implantation is a safe and effective treatment for ONHH.
  • Cell therapy significantly improves clinical and radiological outcomes compared to simple core decompression alone.
  • This approach offers a promising strategy for preserving the humeral head and improving long-term function in ONHH patients.