Improvement at 52 weeks from baseline in Brittberg-Peterson VAS for Pain—resting, Pain—moving, and Pain—bent knee and in KOOS for Pain and Symptom Relief.
3 L-PRP injections at 3-week interval; before the injection: Ca-chloride was added to activate platelets; knee articular damage: grades 0–4 of Kellgren-Lawrence scale.
Improvement at 6 and 12 months from baseline in IKDC, objective and subjective, and EQ VAS; tendency of worsening between 6 and 12 months.
3 L-PRP injections at 3-week interval; before the injection: Ca-chloride was added to activate platelets; knee articular damage: grades 0–4 of Kellgren-Lawrence scale.
Improvement at 24 months from baseline in IKDC, objective and subjective, and EQ VAS; worsening of all scores between 12 and 24 months.
3 infiltrations of PRP at weekly intervals; calcium gluconate 10% was added; knee articular damage: chondropathy (Outerbridge 1-2), grades 1–3 of Kellgren-Lawrence scale.
Improvement at 6 months from baseline in Numerical Rating Scale (NRS) for subjective measurement of pain and the WOMAC index for patients with knee arthritis and cartilage disease.
3 infiltrations of PRP at weekly intervals; Calcium chloride was added; hip articular damage: Tonnis 2-3.
Improvement at 6 months from baseline in VAS, WOMAC Index, and the Harris pain subscale; no significant changes in pain scores between the 6- to 7-week and 6-month time points.
Improvement at 6 months from baseline in VAS and IKDC score; worsening from 6 to 12 months; negative correlation with age, Kellgren-Lawrence grade and presence of patellofemoral joint degeneration.
3 PRP injections at a monthly interval; articular damage: Kellgren-Lawrence Grade 1-2; 50 cases received a second cycle at the completion of 1 year.
Improvement at 24 months from baseline in VAS, KOOS, Tegner and Marx scores; tendency of worsening from 12 to 24 months; at 18 months, greater improvement in patients who received the second cycle.
Improvement at 12 months from baseline in WOMAC index, VAS at rest, and VAS in movement; WOMAC index improved only in the first 3 months.
y = years; PRP = Platelet-Rich Plasma; P-PRP = Pure PRP, with a low content of leukocyte; L-PRP = Leukocyte rich PRP; P-PRF = Pure Platelet-Rich Fibrin.