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Egyptian Rheumatology and Rehabilitation
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Effect of chondroitin sulfate on cartilage volume loss and subchondral bone marrow lesions in osteoarthritis knee

Egyptian Rheumatology and Rehabilitation volume 42, pages 153–158 (2015)Cite this article

Abstract

Background

Chondroitin sulfate (CS) is a major component of the extracellular matrix of many connective tissues, including cartilage, bone, skin, ligaments, and tendons.

Objective

The aim of this work was to study the effect of CS treatment for short time (6 months) clinically and using MRI on cartilage volume loss, subchondral bone marrow lesions (BMLs), and synovitis in patients with primary knee osteoarthritis (OA).

Patients and methods

A total of 50 patients with primary knee OA and clinical signs of synovitis were included in this study. They were divided into two treatment groups. Group 1 included 30 patients who received two capsules of CS (structum capsule 500 mg) once daily for 6 months. Group 2 included 20 patients who received placebo once daily for 6 months. Clinical, radiological, and laboratory assessments were performed for all patients. Cartilage volume loss, subchondral BMLs, and synovial membrane thickness were assessed with MRI at baseline and after 6 months for both groups.

Results

The CS group showed significantly less cartilage volume loss compared with the placebo group after 6 months for the global knee, lateral compartment and tibial plateaus. However, there were no significant differences in the medial compartment and trochlea between the two groups. Significantly lower BML scores were found for the CS group compared with theplacebo group after 6 months, and there were no significant differences in synovial membrane thickness between the two groups. Disease symptoms were similar in both groups.

Conclusion

CS treatment significantly reduces the cartilage volume loss and subchondral BMLs in primary knee OA after 6 months of treatment. These findings suggested a joint structure-protective effect of CS.

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Authors and Affiliations

  1. Department of Physical Medicine, Rheumatology & Rehabilitation, Zagazig University, Zagazig, Egypt

    Mohammad H. Elgawish

  2. Department of Radiodiagnosis, Faculty of Medicine, Zagazig University, Zagazig, Egypt

    Hadeer S. Fahmy

  3. Department of Physical Medicine, Rheumatology & Rehabilitation, Faculty of Medicine, Ain Shams University, 30012, Cairo, Egypt

    Mohammad A. Zakaria MD

  4. Department of Radiodiagnosis, Faculty of Medicine, Al-Azhar University (Cairo branch), Cairo, Egypt

    Anwar A. Shalaby

Authors
  1. Mohammad H. Elgawish
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  2. Mohammad A. Zakaria MD
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  3. Hadeer S. Fahmy
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  4. Anwar A. Shalaby
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Corresponding author

Correspondence to Mohammad A. Zakaria MD.

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Elgawish, M.H., Zakaria, M.A., Fahmy, H.S. et al. Effect of chondroitin sulfate on cartilage volume loss and subchondral bone marrow lesions in osteoarthritis knee. Egypt Rheumatol Rehabil 42, 153–158 (2015). https://doi.org/10.4103/1110-161X.163948

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  • DOI: https://doi.org/10.4103/1110-161X.163948

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