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01.12.2018 | Research article | Ausgabe 1/2018 Open Access

Journal of Orthopaedic Surgery and Research 1/2018

Effects of bone marrow aspirate concentrate and platelet-rich plasma on patients with partial tear of the rotator cuff tendon

Journal of Orthopaedic Surgery and Research > Ausgabe 1/2018
Sang Jun Kim, Eun Kyung Kim, Sun Jeong Kim, Da Hyun Song
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1186/​s13018-017-0693-x) contains supplementary material, which is available to authorized users.



We compared the clinical course of rotator cuff tears between rotator cuff exercise and bone marrow aspirate concentration (BMAC)-platelet rich plasma (PRP) injection to identify the therapeutic effects of BMAC-PRP on partial tear of the rotator cuff tendon.


Twenty-four patients with partial tear of the rotator cuff tendon participated in this study. Twelve patients underwent extraction of BMACs and PRP and received the injection of BMAC-PRP at the tear site under ultrasound guidance. Twelve patients in the control group were asked to perform the rotator cuff exercise for 3 months. Visual analog scale (VAS) and manual muscle test (MMT) scores of the supraspinatus muscle were measured, and the American Shoulder and Elbow Surgeons (ASES) score was recorded before, 3 weeks, and 3 months after injection. Tear size was measured by the greatest longitudinal tear length.


The change in the VAS differed between groups at 3 months (P = 0.039) but not at 3 weeks (P = 0.147). The ASES scores in the BMAC-PRP group changed from 39.4 ± 13.0 to 54.5 ± 11.5 at 3 weeks and 74.1 ± 8.5 at 3 months while those in the control group changed from 45.9 ± 12.4 to 56.3 ± 12.3 at 3 weeks (P = 0.712) and 62.2 ± 12.2 at 3 months (P = 0.011). The tear size decreased at 3 weeks or 3 months after the BMAC-PRP injection but was not significantly different from that in the control group.


BMAC-PRP improved pain and shoulder function in patients with partial tear of the rotator cuff tendon.

Trial registration

The patients were registered in the institutional board registry of Samsung Medical Center (registry number 2014-07-173).
Additional file 1: Rotator cuff exercise comprised of stretching, scapular stabilization exercise, and strengthening exercise. (PDF 1536 kb)
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