Table II.
Platelet-rich plasma (PRP) preparation and application schemes in studies included in the review
| Study | PRP volume, ml | PRP preparation method | Preparation kit | Application scheme | Injection method |
|---|---|---|---|---|---|
| Rha et al. 2013 (17) | 3 | Centrifugation | Prosys PRP Platelet Concentration System (Tozaiholdings) | 2 injections, 4-week interval | Ultrasound-guided injection |
| Ilhanli et al. 2015 (26) | 6 | Centrifugation | Not mentioned | 1 injection | Not mentioned |
| von Wehren et al. 2016 (22) | 5 | Centrifugation | Arthrex Centrifuge (Rotofix) | 3 injections, 7-day interval | Subacromial injection |
| Shams et al. 2016 (21) | 2–2.5 | Centrifugation | MyCells Autologous Platelet Preparation System (ProTech) | 1 injection | Subacromial injection |
| Cai et al. 2019 (16) | 5–6 | Centrifugation | Labofuge 400R (Heraeus) | 4 injections, 7-day interval | Ultrasound-guided subacromial injection |
| Schwitzguebel et al. 2019 (18) | 2 | Centrifugation | RegenKit BCT (Regen Lab) | 1 injection | Ultrasound-guided subacromial injection |
| Ibrahim et al. 2019 (25) | 2 | Centrifugation | Not mentioned | 1 injection | Not mentioned |
| Cory et al. 2020 (19) | 3–5 | Centrifugation | RegenLab (Lausanne) | 1 injection | Ultrasound-guided subacromial injection |
| Sari et al. 2020 (20) | 5 | Centrifugation | Not mentioned | 1 injection | Ultrasound-guided subacromial injection |
| Dadgostar et al. 2021 (23) | 3 | Not mentioned | ROOYA GEN (Arya Mabna Tashkhis Co.) | 1 injection | Ultrasound-guided subacromial injection |
| Thepsoparn et al. 2021 (24) | 5 | Centrifugation | ACP Double Syringe System (Arthrex) | 1 injection | Ultrasound-guided subacromial injection |