[논문]Mesenchymal Stem Cell Injections Improve Symptoms of Knee Osteoarthritis

Koh, Y.G.; Jo, S.B.; Kwon, O.R.; Suh, D.S.; Lee, S.W.; Park, S.H.; Choi, Y.J.

doi:10.1016/j.arthro.2012.11.017

Mesenchymal Stem Cell Injections Improve Symptoms of Knee Osteoarthritis

Arthroscopy : the journal of arthroscopic & related surgery, v.29 no.4, 2013년, pp.748 - 755

Koh, Y.G. , Jo, S.B. , Kwon, O.R. , Suh, D.S. , Lee, S.W. , Park, S.H. , Choi, Y.J.

Abstract ▼ AI-Helper

Purpose: The purpose of this study was to evaluate the clinical and imaging results of patients who received intra-articular injections of autologous mesenchymal stem cells for the treatment of knee osteoarthritis. Methods: The study group comprised 18 patients (6 men and 12 women), among whom the mean age was 54.6 years (range, 41 to 69 years). In each patient the adipose synovium was harvested from the inner side of the infrapatellar fat pad by skin incision extension at the arthroscopic lateral portal site after the patient underwent arthroscopic debridement. After stem cells were isolated, a mean of 1.18 x 106 stem cells (range, 0.3 x 106 to 2.7 x 106 stem cells) were prepared with approximately 3.0 mL of platelet-rich plasma (with a mean of 1.28 x 106 platelets per microliter) and injected into the selected knees of patients. Clinical outcome was evaluated with the Western Ontario and McMaster Universities Osteoarthritis Index, the Lysholm score, and the visual analog scale (VAS) for grading knee pain. We also compared magnetic resonance imaging (MRI) data collected both preoperatively and at the final follow-up. Results: Western Ontario and McMaster Universities Osteoarthritis Index scores decreased significantly (P < .001) from 49.9 points preoperatively to 30.3 points at the final follow-up (mean follow-up, 24.3 months; range, 24 to 26 months). Lysholm scores also improved significantly (P < .001) by the last follow-up visit, increasing from a mean preoperative value of 40.1 points to 73.4 points by the end of the study. Likewise, changes in VAS scores throughout the follow-up period were also significant (P = .005); the mean VAS score decreased from 4.8 preoperatively to 2.0 at the last follow-up visit. Radiography showed that, at the final follow-up point, the whole-organ MRI score had significantly improved from 60.0 points to 48.3 points (P < .001). Particularly notable was the change in cartilage whole-organ MRI score, which improved from 28.3 points to 21.7 points (P < .001). Further analysis showed that improvements in clinical and MRI results were positively related to the number of stem cells injected. Conclusions: The results of our study are encouraging and show that intra-articular injection of infrapatellar fat pad-derived mesenchymal stem cells is effective for reducing pain and improving knee function in patients being treated for knee osteoarthritis. Level of Evidence: Level IV, therapeutic case series.

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Mesenchymal Stem Cell Injections Improve Symptoms of Knee Osteoarthritis

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참고문헌 (29)

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