Reliability, validity and responsiveness of the Step Up and Down (StUD) test for individuals with symptomatic knee osteoarthritis

Background: Canes have been recommended as walking aids for knee osteoarthritis to reduce the loading on the affected knee. Patients are usually recommended to hold the cane in the contralateral hand to the affected knee. Nevertheless, some patients prefer to hold the cane ipsilateral to the affected knee. However, the effect of using ipsilateral or contralateral tripod cane on functional mobility in patients with knee osteoarthritis is still unknown Objective: To compare the immediate effect of ipsilateral and contralateral tripod cane usage on functional mobility in patients with symptomatic knee osteoarthritis Method: This cross-sectional study involved 30 overweight or obese patients with symptomatic unilateral or bilateral knee osteoarthritis (Kellgren Lawrence grade 2 and 3) who never use a cane. Functional mobility was evaluated with Time Up and Go test in three conditions; without walking aid, with tripod cane contralateral and ipsilateral to the more painful knee. Results: The TUG time of aid-free walking is 4.75 (p < 0.001, 95% CI 3.79 - 5.71) seconds faster than ipsilateral cane use and 6.69 (p < 0.001, 95%CI 5.35 - 8.03) seconds faster than contralateral cane use. The TUG time of ipsilateral cane use is 1,94 (95% CI, 1.13 - 2.79) seconds faster than contralateral. Conclusion: Patients with symptomatic knee OA who use tripod cane ipsilateral to the more painful knee have higher functional mobility than the contralateral.

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AB0862 CONSENSUS STATEMENT ON INTRA-ARTICULAR INJECTIONS OF PLATELET-RICH PLASMA FOR THE MANAGEMENT OF KNEE OSTEOARTHRITIS

Annals of the Rheumatic Diseases ◽

10.1136/annrheumdis-2020-eular.618 ◽

2020 ◽

Vol 79 (Suppl 1) ◽

pp. 1738.3-1738

Author(s):

F. Eymard ◽

P. Ornetti ◽

J. Maillet ◽

E. Noel ◽

P. Adam ◽

...

Keyword(s):

Knee Osteoarthritis ◽

Task Force ◽

Platelet Rich Plasma ◽

Symptomatic Treatment ◽

Future Research ◽

List Type ◽

Clinical Practices ◽

Efficient Treatment ◽

Symptomatic Knee Osteoarthritis ◽

Symptomatic Knee

Background:There has been much debate regarding the use of intra-articular injections of platelet-rich plasma (PRP) as symptomatic treatment for knee osteoarthritis. The heterogeneity of the preparation and injection protocols limits the extrapolation of data from randomized controlled trials and meta-analyses.Objectives:The objective of this expert consensus was to develop the first clinical practice recommendations for PRP injections in knee osteoarthritis.Methods:Fifteen physicians (10 rheumatologists, 4 specialists in rehabilitation and sport medicine and 1 interventional radiologist) from different countries were selected given to their expertise in the fields of PRP and osteoarthritis. Twenty-five recommendations were finally retained after several meetings using the modified Delphi method to establish clinical consensus. All experts voted their agreement or not for each recommendation using a score between 1 (totally inappropriate) and 9 (totally appropriate). Depending on the median value and extreme scores, recommendations were judged as appropriated or unappropriated with a strong or relative agreement but could also be judged as uncertain due to indecision or absence of consensus.Results:The main recommendations are listed below:- Intra-articular injections of PRP constitute an efficient treatment of early or moderate symptomatic knee osteoarthritis. Median = 8 [6-9] – Appropriate. Relative agreement.- Intra-articular injections of PRP may be useful in severe knee osteoarthritis (Kellgren-Lawrence grade IV). Median = 7 [6-7] – Appropriate. Relative agreement.- Intra-articular injections of PRP in knee osteoarthritis should be proposed as second-line therapy, after failure of non-pharmacological and pharmacological (oral and topic) symptomatic treatment. Median = 9 [5-9] – Appropriate. Relative agreement.- Intra-articular injections of PRP should not be performed in osteoarthritis flare-up with significant effusion. Median = 7 [5-9] – Appropriate. Relative agreement.- Intra-articular PRP treatment may include 1 to 3 consecutive injections. Median = 9 [7-9] – Appropriate. Strong agreement.- Leukocyte-poor PRP should be preferred for knee OA treatment. Median = 8 [5-9] – Appropriate. Relative agreement.- PRP injections should be performed under ultrasound or fluoroscopic guidance. Median = 8 [3-9] – Uncertain. No consensus.- PRP should not be mixed with injectable anesthetic or corticosteroid. Median = 9 [6-9] – Appropriate. Relative agreement.Conclusion:Twenty-five recommendations were discussed by an international multidisciplinary task force group in order to provide a basis for standardization of clinical practices and future research protocols.Disclosure of Interests:Florent Eymard Consultant of: Regenlab, Paul Ornetti: None declared, Jérémy Maillet Consultant of: Regenlab, Eric Noel Consultant of: Regenlab, Philippe Adam Consultant of: Regenlab, Virginie Legré Boyer Consultant of: Regenlab, Thierry Boyer Consultant of: Regenlab, Fadoua Allali: None declared, Vincent Grémeaux Bader: None declared, Jean-François Kaux: None declared, Karine Louati: None declared, Martin Lamontagne Consultant of: Pendopharm, Fabrice Michel: None declared, Pascal Richette: None declared, Hervé Bard Consultant of: Regenlab

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Clinical Efficacy of Platelet-Rich Plasma Injection and Its Association With Growth Factors in the Treatment of Mild to Moderate Knee Osteoarthritis: A Randomized Double-Blind Controlled Clinical Trial As Compared With Hyaluronic Acid

The American Journal of Sports Medicine ◽

10.1177/0363546520986867 ◽

2021 ◽

Vol 49 (2) ◽

pp. 487-496

Author(s):

Yong-Beom Park ◽

Jun-Ho Kim ◽

Chul-Won Ha ◽

Dong-Hyun Lee

Keyword(s):

Hyaluronic Acid ◽

Growth Factors ◽

Knee Osteoarthritis ◽

Clinical Outcomes ◽

Clinical Efficacy ◽

Global Assessment ◽

Platelet Rich Plasma ◽

Patient Global Assessment ◽

Symptomatic Knee Osteoarthritis ◽

Symptomatic Knee

Background: Although platelet-rich plasma (PRP) has potential as a regenerative treatment for knee osteoarthritis, its efficacy varies. Compositional differences among types of PRP could affect clinical outcomes, but the biological characterization of PRP is lacking. Purpose: To assess the efficacy of intra-articular PRP injection in knee osteoarthritis as compared with hyaluronic acid (HA) injection and to determine whether the clinical efficacy of PRP is associated with its biological characteristics. Study Design: Randomized controlled trial; Level of evidence, 1. Methods: A total of 110 patients with symptomatic knee osteoarthritis received a single injection of leukocyte-rich PRP (1 commercial kit) or HA. Clinical data were assessed at baseline and at 6 weeks and 3 and 6 months after injection. The primary endpoint was an improvement in the International Knee Documentation Committee (IKDC) subjective score at 6 months, and the secondary endpoints were improvements in scores based on the Patient Global Assessment, the visual analog scale (VAS) for pain, the Western Ontario and McMaster Universities Osteoarthritis Index, and the Samsung Medical Center patellofemoral score. Cell counts and concentrations of growth factors and cytokines in the injected PRP were assessed to determine their association with clinical outcomes. Results: PRP showed significantly improvement in IKDC subjective scores at 6 months (11.5 in the PRP group vs 6.3 in the HA group; P = .029). There were no significant differences between groups in other clinical outcomes. The Patient Global Assessment score at 6 months was better in the PRP group ( P = .035). The proportion of patients who scored above the minimal clinically important difference (MCID) for VAS at 6 months was significantly higher in the PRP group ( P = .044). Within the PRP group, the concentrations of platelet-derived growth factors were high in patients with a score above the MCID for VAS at 6 months. The incidence of adverse events did not differ between the groups ( P > .05). Conclusion: PRP had better clinical efficacy than HA. High concentrations of growth factors were observed in patients who scored above the MCID for clinical outcomes in the PRP group. These findings indicate that concentration of growth factors needs to be taken into consideration for future investigations of PRP in knee osteoarthritis. Registration: NCT02211521 (ClinicalTrials.gov identifier).

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