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Related Experiment Video

Updated: Aug 29, 2025

Author Spotlight: Treating Frozen Shoulder with Small Needle Knife Therapy
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Frozen shoulder.

Neal L Millar1, Adam Meakins2, Filip Struyf3

  • 1School of Infection and Immunity, College of Medicine, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK. neal.millar@glasgow.ac.uk.

Nature Reviews. Disease Primers
|September 8, 2022
PubMed
Summary
This summary is machine-generated.

Frozen shoulder causes debilitating shoulder pain and stiffness due to fibrotic tissue. Current treatments lack clear effectiveness, necessitating research into novel therapies for this condition.

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Related Experiment Videos

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Area of Science:

  • Orthopedics
  • Rheumatology
  • Cell Biology

Background:

  • Frozen shoulder is a common, debilitating condition causing shoulder pain and progressive loss of movement.
  • It is associated with systemic conditions or immobilization, presenting a protracted and frustrating clinical course.
  • Pathologically, it involves fibroproliferative tissue fibrosis, with fibroblasts transforming into myofibroblasts, leading to capsular contractures and stiffness.

Purpose of the Study:

  • To review the pathophysiology, diagnosis, and management of frozen shoulder.
  • To highlight the challenges in current treatment strategies and the need for improved therapeutic outcomes.
  • To emphasize the importance of translational science in developing novel treatments.

Main Methods:

  • Literature review of frozen shoulder pathophysiology, diagnosis, and treatment.
  • Analysis of the cellular and molecular mechanisms underlying fibrotic contractures.
  • Evaluation of the efficacy of current management approaches.

Main Results:

  • Frozen shoulder is characterized by fibroblast-to-myofibroblast transformation, collagen deposition, inflammation, neoangiogenesis, and neoinnervation.
  • Diagnosis relies heavily on physical examination, which can be challenging.
  • Current management options including physiotherapy, injections, and surgery have unclear effectiveness.

Conclusions:

  • Frozen shoulder involves complex fibrotic processes leading to significant functional impairment.
  • There is a need for more effective treatments due to the limitations of current therapies.
  • Advancing translational science is crucial for developing innovative therapies to improve patient outcomes.