Characteristics of the spreads of platelet-rich plasma (PRP) are not widely known despite commonly use. This study aims to evaluate whether PRP stays within the injected area by using ultrasonography, to improve understanding of the spreads of intratendinous injected PRP. Thirty-nine patients (15 males, 24 females; mean age, 49.3 years), who had symptoms on their elbows (> 6 months) and diagnosed as lateral (25 elbows) or medial (14 elbows) tendinopathies of elbow, were included. The severity of tendon pathology was assessed by ultrasonography as tear or no tear. Immediately after ultrasound-guided PRP injection, ultrasound images were evaluated to assess the area of PRP distribution, which was defined as the presence of fluid or microbubbles. Ultrasound revealed that 13 elbows had tendon tear and 26 had no tear, respectively. Post-injection ultrasound confirmed the injected PRP was within the tendon in all cases. The mean distance of distribution from the injection site was 12.6 mm (5.0-26.0 mm). There was no difference in the distance of PRP distribution between tendon tear and no tear. Injected PRP spread to soft tissue outside the tendon in 20 of 39 cases. Intra-articular extension of PRP was observed in 5 cases. Although PRP remained intratendinous after the injection in all cases, some portion tended to spread outside from the injection site in a short space of time. Postinjection ultrasonographic imaging has a value for observing the spreading patterns of intratendinous PRP injection.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5358018 | PMC |
Publication Analysis
Top Keywords
Similar Publications
The Role of Intraarticular Injections of Hyaluronic Acid and Platelet Rich Plasma for the Treatment of Articular Pain in Knee Osteoarthritis.
Arch Bone Jt Surg
January 2025
Department of Physical Medicine and Rehabilitation, La Paz University Hospital-IdiPaz, Madrid, Spain.
The purpose of this in brief article was to determine the current role of intraarticular injections of hyaluronic acid (HA) and platelet-rich plasma (PRP) for the treatment of painful KOA. It has been reported that the average duration of effectiveness (pain relief) of one injection of extended-release HA is around one year. Kellgren-Lawrence grade (I-II versus III-IV), male gender, and older age are associated with a longer duration of effectiveness.
View Article and Find Full Text PDFVariations in Neuromuscular Functions After Platelet-Rich Plasma and Dextrose Injections in Chronic Lateral Epicondylitis: A Randomized Controlled Study.
Sports Health
January 2025
Institute of Allied Health Sciences, College of Medicine, National Cheng-Kung University, Tainan, Taiwan.
Background: Lateral epicondylitis is caused by overuse and manifests as pain, weakness, and difficulty with object manipulation. Platelet-rich plasma (PRP) and dextrose injections have shown promise in reducing pain and improving function.
Hypothesis: PRP is more effective for force precision control of the extensor carpi radialis brevis (ECRB) muscle than dextrose injection for patients with chronic lateral epicondylitis (CLE).
Effect of platelet-rich plasma versus placebo or corticosteroid for knee osteoarthritis: A systematic review and meta-analysis of randomized controlled trials.
J Clin Orthop Trauma
March 2025
Department of Pharmacy Practice, NGSM Institute of Pharmaceutical Sciences, Nitte (Deemed to be University), Mangaluru, India.
Background: The effectiveness of intra-articular platelet-rich plasma (IA-PRP) injections for managing pain in knee osteoarthritis (KOA) remains inconsistent. Therefore, this study aimed to systematically review randomized controlled trials (RCTs) assessing the efficacy of IA-PRP.
Methods: A total of 21 studies meeting the inclusion criteria were selected from various scientific databases, all of which compared PRP to either a placebo or an active comparator, such as corticosteroids (CS), in the treatment of KOA.
PrP Glycoprotein Is Indispensable for Maintenance of Skeletal Muscle Homeostasis During Aging.
J Cachexia Sarcopenia Muscle
February 2025
Department of Bioactive Material Sciences, Research Center of Bioactive Materials, Jeonbuk National University, Jeonju, Republic of Korea.
Background: The cellular prion protein (PrP), a glycoprotein encoded by the PRNP gene, is known to modulate muscle mass and exercise capacity. However, the role of PrP in the maintenance and regeneration of skeletal muscle during ageing remains unclear.
Methods: This study investigated the change in PrP expression during muscle formation using C2C12 cells and evaluated muscle function in Prnp wild-type (WT) and knock-out (KO) mice at different ages (1, 9 and 15 months).
Tau oligomers impair memory and synaptic plasticity through the cellular prion protein.
Acta Neuropathol Commun
January 2025
Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy.
Deposition of abnormally phosphorylated tau aggregates is a central event leading to neuronal dysfunction and death in Alzheimer's disease (AD) and other tauopathies. Among tau aggregates, oligomers (TauOs) are considered the most toxic. AD brains show significant increase in TauOs compared to healthy controls, their concentration correlating with the severity of cognitive deficits and disease progression.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!