Platelet-rich plasma for the treatment of chronic plantar fasciopathy in adults: a case series

New Infiltration Technique in the Treatment of the Plantar Fascia Syndrome Based on Platelet-Rich Plasma

Pain in the attachment of the plantar fascia in the calcaneus represents 10% of all sports injuries, affects 10% of foot runners, and will affect around 20% of the world population. There is no effective conservative treatment for it. This paper justifies a new definition and name for this pathology, Plantar Fascia Syndrome (PFS), presents a methodology for its diagnosis, and presents the clinical and functional effectiveness of a new conservative treatment based on platelet-rich plasma (PRP). In total, 25 patients (from an initial sample of 260) diagnosed with recalcitrant PFS lasting for more than 12 months were treated with a single infiltration of 2 mL of PRP, according to a new technic proposed. The study was approved by the ethical committee for clinical research of the reference hospital. The patients were controlled after 15, 30, 90, and 180 days, reviewing on each occasion pain, thickness of the plantar fascia, and active extension of the ankle joint. A total of 15 days after infiltration, 85% of patients had no clinical signs requiring treatment. After 90 days of infiltration, no patients showed clinical signs. This improvement in the patients' condition lasted for 180 days. All patients after treatment can fully resume normal activity with no pain.

Platelet-rich plasma injections as a treatment for Achilles tendinopathy and plantar fasciitis in athletes

Platelet-rich plasma (PRP) injections represent a growing interest in the use of biologic therapies for treatment of musculoskeletal injuries. One possible application of PRP is in the management of overuse injuries commonly experienced by athletes. The aim of this review is to evaluate and summarize existing evidence regarding the efficacy of PRP in the treatment of Achilles tendinopathy and plantar fasciitis in athletes. Although many lower quality single-armed studies have demonstrated clinical improvement in athletes treated for Achilles tendinopathy with PRP, higher quality randomized controlled trials (RCTs) have shown no clear benefit in athletes. Existing data suggest PRP significantly improves clinical outcomes for plantar fasciitis in the general population, but very few studies and no RCTs are available that specifically analyze outcomes in athletic populations. More research is needed to evaluate how platelet concentration, leukocyte and erythrocyte presence, and sport type may interact to affect clinical outcomes in athletes.

Autologous Blood Injection With Dry-Needling vs Dry-Needling Alone Treatment for Chronic Plantar Fasciitis: A Randomized Controlled Trial

BACKGROUND

Autologous blood injection (ABI) for patients with chronic plantar fasciitis has been promoted as an approach to improve outcomes over standard dry-needling approaches. The purpose of this trial was to investigate if there are improved outcomes following an ultrasonography-guided ABI compared to dry needling alone for patients with chronic plantar fasciitis.

METHODS

A double-blinded (participant-blinded and observer-blinded) RCT within a single clinic enrolled 90 patients with symptoms of plantar fasciitis that had failed to improve with a minimum of 3 months of rehabilitation. The mean age was 49.5±8.9 years, 67% were female, and the mean symptom duration was 40.0±28.2 months (range: 8 months-10 years). Participants were randomized to receive ABI or an identical dry-needle fenestration-procedure without coadministration of autologous blood. All participants received identical structured rehabilitation and were followed up at 2, 6, 12, and 26 weeks. Outcome measures included local foot pain, validated foot patient-reported outcome measures (Foot Function Index-revised, Manchester-Oxford Foot Questionnaire, Foot and Ankle Ability Measure), measures of general function and "ability" (EuroQol [EQ]-5D-5L, Oswestry Disability Index), specific measures of activity (International Physical Activity Questionnaire), sleep (Pittsburgh Sleep Quality Index), and mood (Hospital Anxiety and Depression Scale).

RESULTS

There were no significant between-group differences seen at any time-point studied. There were a number of statistically significant within-group improvements for local foot pain and function in both groups comparing baseline/follow-up data. Overall, levels of pain improved by 25% by 6 weeks and by 50% at 6 months. There were improvements in some generalized function markers. Activity rates did not change, demonstrating that improvements in pain did not necessarily influence physical activity.

CONCLUSION

Coadministration of 3 mL of autologous blood had no additional effect compared to a dry-needling procedure alone for patients with chronic plantar fasciitis.

LEVEL OF EVIDENCE

Level I, double-blinded randomized controlled trial.

Similar Benefits Seen After Radial Extracorporeal Shockwave Therapy or Autologous Blood Injection in Patients With Chronic Plantar Fasciitis-A Retrospective Cohort Study

OBJECTIVE

To compare the outcomes for patients with chronic plantar fasciitis after extracorporeal shockwave therapy (ESWT) or autologous blood injection (ABI).

DESIGN

Cohort study-retrospective analysis of prospectively collected data.

SETTING

Hospital-based Sports Medicine Outpatient Clinic.

PATIENTS

One hundred two consecutive patients with chronic plantar fasciitis, treated with either radial-ESWT (rESWT) (n = 54) or ABI (n = 48), with minimum 3-month follow-up and 96% (98/102) having 6-month follow-up. Mean age 49.5 years and mean duration of symptoms 37.5 months before treatment.

INTERVENTIONS

Patients received either 3 sessions of radial ESWT (one session per week for 3 weeks), or a single ultrasound-guided dry needling and ABI (3 mL whole autologous blood). All patients received standardized after-care, including progressive structured home exercise program of flexibility, strengthening, and proprioception exercises.

MAIN OUTCOME MEASURES

0 to 10 numerical rating scale (NRS) for self-reported "average pain" and "average stiffness" values. Secondary outcome measures included assessments of local foot function [including Manchester-Oxford Foot Questionnaire (MOXFQ), revised-Foot Function Index] as well as markers of mental health functioning (HAD), global health (EQ-5D-5L), and physical activity (International Physical Activity Questionnaire).

RESULTS

This study demonstrated statistically significant improvements in self-reported measures of pain and local foot function after either procedure at 6 weeks, 3 months, and 6 months, but no statistically significant differences were seen between groups at any time-period studied. At 6 months, the average pain using a 0 to 10 NRS was improved from 6.8 ± 1.8 to 4.0 ± 2.7 (P < 0.001) after ESWT and from 7.1 ± 1.6 to 3.8 ± 2.7 (P < 0.001) after ABI. At 6 months, significant improvements were seen following either group using a number of different validated patient-rated outcome measures assessing local foot pain and function, eg, the total score for MOXFQ improved from 56.1 ± 12.8 to 42.5 ± 16.6 (P < 0.001) after ESWT and from 58.8 ± 13.2 to 44.2 ± 19.2 (P < 0.001) after ABI. However, measures of physical activity or wider aspects of patient functioning did not consistently improve from baseline values to follow-up periods.

CONCLUSIONS

Patients with chronic plantar fasciitis improved to statistically significant extent after either rESWT or ABI procedures, with no significant differences seen between groups. The lack of randomization in this pragmatic study is noted, which may have influenced the outcome seen. Potentially larger and more robust studies are required to investigate this treatment comparison further.

Outcomes of platelet-rich plasma for plantar fasciopathy: a best-evidence synthesis

BACKGROUND

Plantar fasciopathy (PF) is a very common disease, affecting about 1/10 people in their lifetime. Platelet-rich plasma (PRP) had been demonstrated to be useful in achieving helpful effects for plantar fasciopathy. The purpose of this study was to compare the pain and functional outcomes between PRP and corticosteroid (CS) or placebo for plantar fasciopathy through meta-analysis and provide the best evidence.

METHODS

Literature was searched systematically to explore related studies that were published in Cochrane Library, PubMed, Embase, Medline, SpringerLink, OVID, and ClinicalTrials.gov . Articles regarding comparative research about the outcomes of PRP therapy and CS or placebo injection were selected. Data of pain and functional outcomes was extracted and imported into Reviewer Manager 5.3 to analyze.

RESULTS

Thirteen RCTs were included and analyzed. Analysis results showed significant superiority of PRP in outcome scores when compared with CS (VAS: MD = - 0.85, P < 0.0001, I² = 85%; AOFAS: MD = 10.05, P < 0.0001, I² = 85%), whereas there is no statistical difference in well-designed double-blind trials (VAS: MD = 0.15, P = 0.72, I² = 1%; AOFAS: MD = 2.71, P = 0.17, I² = 0%). In the comparison of the PRP and the placebo, the pooled mean difference was - 3.76 (P < 0.0001, 95% CI = - 4.34 to - 3.18).

CONCLUSIONS

No superiority of PRP had been found in well-designed double-blind studies, whereas it is implied that the outcomes of PRP are better than placebo based on available evidence.

Post-Procedure Protocols Following Platelet-Rich Plasma Injections for Tendinopathy: A Systematic Review

OBJECTIVE

Platelet-rich plasma (PRP) has been increasingly studied as a treatment for tendinopathy. Many factors may influence outcomes after PRP, including different protocols following administration. It was hypothesized that there would be heterogeneity in post-PRP protocols.

LITERATURE SURVEY

A systematized review of the literature on post-PRP protocols for tendinopathy was conducted using an electronic search of MEDLINE and Embase databases through September 2018.

METHODOLOGY

After duplicates were removed, English language articles involving adult patients who received PRP for tendinopathy were reviewed. Exclusion criteria included studies with fewer than 10 patients, PRP used to treat pathology other than tendinopathy, multiple protocols in one study, and surgical settings. Protocol specifics were extracted including nonsteroidal anti-inflammatory drugs (NSAID) restrictions before and after injection, postinjection restrictions on movement and weight bearing, use of orthoses, activity modifications, and postinjection rehabilitation protocols. Given limitations in the data, a meta-analysis was not performed.

SYNTHESIS

Eighty-four studies met inclusion criteria. Following PRP injection, weight-bearing restrictions were mentioned rarely (12% of protocols). Orthosis use was uncommon overall (18%) but more common in Achilles tendinopathy protocols (53%). The majority of protocols instituted a period of stretching (51%) and strengthening (54%). Stretching programs generally began 2-7 days following injection, and strengthening programs began within 2-3 weeks. Preinjection NSAID restriction was reported rarely (20%), whereas postinjection NSAID restriction was more common (56%), with a typical restriction of greater than 2 weeks (38%). Return to play or full activity was reported in 42% of protocols, most commonly at 4-6 weeks following injection.

CONCLUSION

Although the clinical effectiveness of PRP remains controversial, even less is known about the effect of post-PRP protocols, which may affect the outcomes attributed to PRP itself. No studies directly compare post-PRP protocols, and the protocols studied demonstrate substantial heterogeneity. Some consensus regarding post-PRP protocols exists, although the rationale for these recommendations is limited.

Platelet Concentrates in Musculoskeletal Medicine

Platelet concentrates (PCs), mostly represented by platelet-rich plasma (PRP) and platelet-rich fibrin (PRF) are autologous biological blood-derived products that may combine plasma/platelet-derived bioactive components, together with fibrin-forming protein able to create a natural three-dimensional scaffold. These types of products are safely used in clinical applications due to the autologous-derived source and the minimally invasive application procedure. In this narrative review, we focus on three main topics concerning the use of platelet concentrate for treating musculoskeletal conditions: (a) the different procedures to prepare PCs, (b) the composition of PCs that is related to the type of methodological procedure adopted and (c) the clinical application in musculoskeletal medicine, efficacy and main limits of the different studies.

Is Platelet-rich Plasma Injection more Effective than Steroid Injection in the Treatment of Chronic Plantar Fasciitis in Achieving Long-term Relief?

Introduction: Plantar fasciitis is characterised by pain in the heel, which is aggravated on weight bearing after prolonged rest. Many modalities of treatment are commonly used in the management of plantar fasciitis including steroid injection. Many studies show that steroid injection provides pain relief in the short term but not long lasting. Recent reports show autologous platelet-rich plasma (PRP) injection promotes healing, resulting in better pain relief in the short as well as long term. The present study was undertaken to compare the effects of local injection of platelet-rich plasma and Corticosteroid in the treatment of chronic plantar fasciitis. Materials and methods: Patients with the clinical diagnosis of chronic plantar fasciitis (heel pain of more than six weeks) after failed conservative treatment and plantar fascia thickness more than 4mm were included in the study. Patients with previous surgery for plantar fasciitis, active bilateral plantar fasciitis, vascular insufficiency or neuropathy related to heel pain, hypothyroidism and diabetes mellitus were excluded from the study. In this prospective double-blind study, 60 patients who fulfilled the criteria were divided randomly into two groups. Patients in Group A received PRP injection and those in Group B received steroid injection. Patients were assessed with visual analog scale (VAS) and American Orthopedic Foot and Ankle Society (AOFAS) score. Assessment was done before injection, at six weeks, three months and six months follow-up after injection. Plantar fascia thickness was assessed before the intervention and six months after treatment using sonography. Results: Mean VAS in Group A decreased from 7.14 before injection to 1.41 after injection and in Group B decreased from 7.21 before injection to 1.93 after injection, at final follow-up. Mean AOFAS score in Group A improved from 54 to 90.03 and in Group B from 55.63 to 74.67 at six months' follow-up. The improvements observed in VAS and AOFAS were statistically significant. At the end of six months' follow-up, plantar fascia thickness had reduced in both groups (5.78mm to 3.35mm in Group A and 5.6 to 3.75 in Group B) and the difference was statistically significant. Conclusion: Local injection of platelet-rich plasma is an effective treatment option for chronic plantar fasciitis when compared with steroid injection with long lasting beneficial effect.

Similar effect of ultrasound-guided platelet-rich plasma versus platelet-poor plasma injections for chronic plantar fasciitis

BACKGROUND

There are conflicting reports regarding the therapeutic effect of platelet-rich plasma (PRP) versus autologous whole-blood (platelet poor plasma, PPP) injections for plantar fasciitis. Therefore, this study was conducted to compare the effectiveness of a single ultrasound (US)-guided PRP versus PPP injection in patients with chronic plantar fasciitis.

MATERIALS AND METHODS

36 patients were recruited with clinical and sonographic evidence of chronic (>6 months) plantar fasciitis, refractory to analgesics and physical therapy in a double-blinded, randomized, prospective study. The patients were randomly allocated into two groups with a sealed envelope method. Group A included 18 patients who underwent a single US-guided PRP injection and group B included another 18 patients who underwent PPP injection with the same technique. Follow-up was set at 3 and 6 months; no patient was lost to follow-up. Pain, function and satisfaction were assessed using visual analogue scales, and occurrence of complications.

RESULTS

All scores statistically significantly improved for both groups from baseline at the 3- and 6-month follow-up evaluation, without, however, any statistically significant differences between the two groups with respect to pain, function and satisfaction scores. Complications were not observed.

CONCLUSIONS

A single US-guided PRP injection yields similar results with PPP injection in patients with chronic plantar fasciitis. Both treatments provide significant improvement at 3 and 6-month follow-up after the injection.

Effectiveness of Four Different Treatment Modalities in the Treatment of Chronic Plantar Fasciitis During a 36-Month Follow-Up Period: A Randomized Controlled Trial

No consensus has been reached about the best treatment method of plantar fasciitis and the results of the treatment methods have been inconsistent. The objective of the present study was to compare the therapeutic effects of extracorporeal shock wave therapy, platelet-rich plasma injection, local corticosteroid injection, and prolotherapy for the treatment of chronic plantar fasciitis using a randomized, controlled, prospective study. We performed a randomized controlled prospective clinical study of 4 groups. The first group received extracorporeal shock wave therapy, the second group received prolotherapy, the third group received platelet-rich plasma injection, and the fourth group received a local corticosteroid injection. The study included 158 consecutive patients with a diagnosis of chronic plantar fasciitis with a symptomatic heel spur. The clinical outcomes were assessed using the visual analog scale and Revised Foot Function Index. At the end of the follow-up period, the mean visual analog scale scores for all 4 groups were similar to the mean visual analog scale scores before treatment. At the end of the follow-up period, no significant improvement was noted in the Revised Foot Function Index score in any of the groups. The corticosteroid injection was more effective in the first 3 months and extracorporeal shock wave therapy was an effective treatment method in the first 6 months in regard to pain. The corticosteroid injection lost its effectiveness during the follow-up period. The effect of prolotherapy and platelet-rich plasma was seen within 3 to 12 months; however, at the 36-month follow-up point, no differences were found among the 4 treatments.

Variables affecting the potential efficacy of PRP in providing chronic pain relief

Although chronic pain affects about 1% of the US population, it remains largely resistant to treatment. Despite great variability in pain outcomes, the application of autologous platelet-rich plasma (PRP) has become increasingly popular in attempts to reduce chronic pain. The variability in PRP efficacy raises the question of whether PRP actually has an analgesic capacity, and if so, can that capacity be made consistent and maximized. The best explanation for the variability in PRP analgesic efficacy is the failure during PRP preparation and application to take into account variables that can increase or eliminate its analgesic capabilities. This suggests that if the variables are reduced and controlled, a PRP preparation and application protocol can be developed leading to PRP inducing reliable, complete, and long-term pain relief. The goal of this study was to examine some of the variables that influence platelets and see how they might be controlled to increase the analgesic potential of PRP. Among the variables examined are the physiological status of the patient, methods used to prepare PRP, and methods of PRP application. The goal of modifying these variables is to minimize platelet serotonin content, maximize platelet content of factors that reduce inflammation and pain, while maintaining their bioactivity, maximize platelet capacity to aggregate at injury sites, induce rapid and simultaneous release of their contents, and optimize PRP application protocols. It is concluded that controlling some or many of these variables will lead to PRP that induces reliable, maximum, and long-term relief of chronic pain.

Association Between Plantar Fasciitis and Isolated Gastrocnemius Tightness

BACKGROUND

An association between plantar fasciitis and isolated gastrocnemius tightness (IGT) has been postulated in the literature; however, there have been few studies to prove this relationship. This prospective cross-sectional cohort study was aimed at determining the association between plantar fasciitis and IGT.

METHODS

Three groups comprising 45 patients with plantar fasciitis (group 1), 117 patients with foot and ankle pathology other than plantar fasciitis (group 2), and 61 patients without foot and ankle pathology (group 3) were examined for the presence of IGT using the Silfverskiöld test. Statistical tests included chi-square test, Student t test, and analysis of variance.

RESULTS

Of the patients, 101 (45.3%) had IGT: 36 (80%) in group 1, 53 (45.3%) in group 2, and 12 (19.7%) in group 3. The difference in IGT prevalence between the groups was statistically significant at P < .001. The prevalence of IGT was similar between acute and chronic plantar fasciitis at 78.9% and 80.6%, respectively.

CONCLUSION

There was a very strong association between plantar fasciitis and IGT using group 3 as a reference. This study suggests that IGT should be actively sought out and managed in patients with plantar fasciitis.

LEVEL OF EVIDENCE

Level II, cross-sectional cohort prospective study.

Regenerative efficacy of therapeutic quality platelet-rich plasma injections versus phonophoresis with kinesiotaping for the treatment of chronic plantar fasciitis: A prospective randomized pilot study

BACKGROUND:

Plantar fasciitis (PF) a common chronic musculoskeletal pain routinely diagnosed and treated in rehabilitation practices. When conservative management fails in this degenerative disease, local injections of corticosteroids, platelet rich plasma (PRP), botulinum toxin, extracorporeal shockwave therapy, surgical release are used. In our prospective randomized pilot study we compared the regenerative efficacy of Platelet Rich Plasma vs Kinesiotaping with phonophoresis who were resistant to conservative management of PF.

MATERIALS AND METHODS:

Sixty-four chronic plantar fasciitis patients nonresponding to conservative management were evaluated for two interventions.36 patients received ultrasound guided 2.5 ml autologous platelet rich plasma (PRP) injection and 28 participant received phonophoresis and total10 Kinesiotaping on alternate days. 54 participants 33 in PRP intervention group and 21 in KT group were analyzed, by Numerical Rating Scale (NRS), plantar fascia thickness (ultrasound guided) and disability and activity limitation measured by foot function index in every two weeks up to 6 months.

RESULTS:

Post intervention assessment at 2 weeks revealed improvement in pain relief was better in Kinesiotaping group (NRS-4.619) as compared to PRP group (NRS- 6.061). But evaluation at 12 and 24 weeks showed statistically significant improvement in NRS and Foot function index in PRP group than in Kinesiotaping. Similarly, at the end of 24-week improvement in foot function index (FFI) was more in PRP group (P<0.0001). At end of 12 and 24 weeks there was significant reduction in plantar fascia thickness in PRP group (p<0.0001) as compared to KT group (p<0.05).

CONCLUSION:

Our study concluded that therapeutic quality autologous PRP injection (1x10⁶ platelets/μl) has regenerative effect with long and better efficacy in pain management of chronic recalcitrant plantar fasciitis than Phonophoresis and Kinesiotaping.

The use of platelet-rich plasma to treat chronic tendinopathies: A technical analysis

Platelet-rich plasma (PRP) is blood plasma with a high concentration of autologous platelets which constitute an immense reservoir of growth factors. The clinical use of PRP is widespread in various medical applications. Although highly popular with athletes, the use of PRP for the treatment of tendinopathies remains scientifically controversial, particularly due to the diversity of products that go by the name of "PRP." To optimize its use, it is important to look at the various stages of obtaining PRP. In this literature review, we take a closer look at eight parameters which may influence the quality of PRP: 1) anticoagulants used to preserve the best platelet function, 2) the speed of centrifugation used to extract the platelets, 3) the platelet concentrations obtained, 4) the impact of the concentration of red and while blood cells on PRP actions, 5) platelet activators encouraging platelet degranulation and, hence, the release of growth factors, and 6) the use or nonuse of local anesthetics when carrying out infiltration. In addition to these parameters, it may be interesting to analyze other variables such as 7) the use of ultrasound guidance during the injection with a view to determining the influence they have on potential recovery.

Management of plantar fasciitis in the outpatient setting

Plantar fasciitis is a very common cause of inferior heel pain that can be triggered and aggravated by prolonged standing, walking, running and obesity, among other factors. Treatments are largely noninvasive and efficacious. Supportive treatments, including the plantar fascia-specific stretch, calf stretching, appropriate orthotics and night dorsiflexion splinting, can alleviate plantar fascia pain. While local injections of corticosteroids can help with pain relief, the effects are short-lived and must be weighed against the risk of fat pad atrophy and plantar fascia rupture. Ultrasonography-guided focal extracorporeal shock wave therapy is useful for patients with chronic plantar fasciitis and referrals for this treatment can be made in recalcitrant cases. Activity modification to decrease cyclical repetitive loading of the plantar fascia should be advised during the treatment phase regardless of the chosen treatment modality.

Effectiveness and relevant factors of platelet-rich plasma treatment in managing plantar fasciitis: A systematic review

Background:

Plantar fasciitis (PF) is a common foot complaint, affects both active sportsmen and physically inactive middle age group. It is believed that PF results from degenerative changes rather than inflammation. Platelet-rich plasma (PRP) therapy has been introduced as an alternative therapy for PF. This study is aimed to systematically review to the effectiveness and relevant factors of PRP treatment in managing PF.

Materials and Methods:

A search was conducted in electronic databases, including PubMed, Scopus, and Google Scholar using different keywords. Publications in English-language from 2010 to 2015 were included. Two reviewers extracted data from selected articles after the quality assessment was done.

Results:

A total of 1126 articles were retrieved, but only 12 articles met inclusion and exclusion criteria. With a total of 455 patients, a number of potentially influencing factors on the effectiveness of PRP for PF was identified. In all these studies, PRP had been injected directly into the plantar fascia, with or without ultrasound guidance. Steps from preparation to injection were found equally crucial. Amount of collected blood, types of blood anti-coagulant, methods in preparing PRP, speed, and numbers of time the blood samples were centrifuged, activating agent added to the PRP and techniques of injection, were varied between different studies. Regardless of these variations, superiority of PRP treatment compared to steroid was reported in all studies.

Conclusion:

In conclusion, PRP therapy might provide an effective alternative to conservative management of PF with no obvious side effect or complication. The onset of action after PRP injection also greatly depended on the degree of degeneration.

Chronic Plantar Fasciitis: Effect of Platelet-Rich Plasma, Corticosteroid, and Placebo

Plantar fasciitis is a common cause of heel pain. It is a disabling disease in its chronic form. It is a degenerative tissue condition of the plantar fascia rather than an inflammation. Various treatment options are available, including nonsteroidal anti-inflammatory drugs, corticosteroid injections, orthosis, and physiotherapy. This study compared the effects of local platelet-rich plasma, corticosteroid, and placebo injections in the treatment of chronic plantar fasciitis. In this double-blind study, patients were divided randomly into 3 groups. Local injections of platelet-rich plasma, corticosteroid, or normal saline were given. Patients were assessed with the visual analog scale for pain and with the American Orthopaedic Foot and Ankle Society (AOFAS) Ankle and Hindfoot score before injection, at 3 weeks, and at 3-month follow-up. Mean visual analog scale score in the platelet-rich plasma and corticosteroid groups decreased from 7.44 and 7.72 preinjection to 2.52 and 3.64 at final follow-up, respectively. Mean AOFAS score in the platelet-rich plasma and corticosteroid groups improved from 51.56 and 55.72 preinjection to 88.24 and 81.32 at final follow-up, respectively. There was a significant improvement in visual analog scale score and AOFAS score in the platelet-rich plasma and corticosteroid groups at 3 weeks and at 3-month follow-up. There was no significant improvement in visual analog scale score or AOFAS score in the placebo group at any stage of the study. The authors concluded that local injection of platelet-rich plasma or corticosteroid is an effective treatment option for chronic plantar fasciitis. Platelet-rich plasma injection is as effective as or more effective than corticosteroid injection in treating chronic plantar fasciitis.

Plantar fasciitis: A randomized comparative study of platelet rich plasma and low dose radiation in sportspersons

BACKGROUND

Plantar Fasciitis makes up about 15% of patients requiring professional care due to foot symptoms. The treatment methods are numerous with none proving to be clearly superior to others. We aimed to compare two common treatment methods in search of the best treatment.

METHOD

All consecutive sportspersons presenting to our OPD with clinical diagnosis of plantar fasciitis underwent treatment consisting of stretching exercises, activity modification, and NSAID's for 6 months. First 40 patients who did not respond to the treatment were divided randomly into two groups of 20 patients each, Group A (Platelet rich plasma - PRP) and Group B (low dose radiation - LDR). At the time of final follow-up (6 months) the mean improvement in the pain score (Visual-Analogue-Scale), American Orthopaedic Foot and Ankle Score (AOFAS) and Plantar fascia thickness on ultrasound were compared.

RESULT

Significant improvement in all 3 parameters was noted at the time of final follow up within both groups. When compared to each other, the difference in outcome of both these Groups on the given 3 parameters came out to be insignificant (p>0.05).

CONCLUSION

PRP is as good as LDR in patients with chronic recalcitrant plantar fasciitis not responding to physical therapy.

Ultrasound-guided procedures to treat sport-related muscle injuries

Ultrasound is well known as a low-cost, radiation-free and effective imaging technique to guide percutaneous procedures. The lower limb muscles represent a good target to perform such procedures under ultrasound guidance, thus allowing for clear and precise visualization of the needle during the whole procedure. The knowledge of guidelines and technical aspects is mandatory to act in the most safe and accurate way on target tissues that can be as small as a few millimetres. This review will focus above the local treatments of traumatic lower limb muscle injuries described in literature, focusing on new and promising approaches, such as platelet-rich plasma treatment of muscle tears in athletes. For each procedure, a brief how-to-do practical guide will be provided, emphasizing precautions and tricks based on day-by-day experience that may help to improve the outcome of percutaneous ultrasound-guided procedures around the lower limb muscles.

Ultrasound-guided intervention in the ankle and foot

In this comprehensive review, we discuss the main interventions performed in the foot and ankle for Achilles tendinopathy, Morton's neuromas and Plantar fasciitis as well as techniques for intra-articular and peritendinous injections. We present the different imaging techniques and injectable agents that can be used in clinical practice, trying to help the reader decide the most appropriate way of managing the patient with a problem in the ankle and foot.

Endoscopic plantar fasciotomy versus injection of platelet-rich plasma for resistant plantar fasciopathy

BACKGROUND

Resistant plantar fasciopathy is a common orthopedic problem.

AIM

Comparing two different methods of treatment.

METHODS

Fifty patients with chronic resistant plantar fasciopathy were divided into two groups. The first included 23 patients treated by endoscopic release of plantar fascia (EPF) and the second included 27 patients treated by injection of platelet-rich plasma (PRP).

RESULTS

In the EPF group, the average VAS improved from 8.28 to 2.35. The average AOFAS improved from 65 to 94. In the PRP group, average VAS improved from 8.22 to 2.9 and the average AOFAS improved from 66 to 92.

CONCLUSION

Both methods gave comparable results at late follow-up.

Lower Extremity Injury Patterns in Elite Ballet Dancers: Ultrasound/MRI Imaging Features and an Institutional Overview of Therapeutic Ultrasound Guided Percutaneous Interventions

BACKGROUND

Altered biomechanics from repetitive microtrauma, such as long practice hours in en pointe (tip of the toes) or demi pointe (balls of the feet) predispose ballet dancers to a multitude of musculoskeletal pathologies particularly in the lower extremities. Both ultrasound and magnetic resonance imaging (MRI) are radiation-sparing modalities which can be used to confidently evaluate these injuries, with ultrasound (US) offering the added utility of therapeutic intervention at the same time in experienced hands.

QUESTIONS/PURPOSES

The purposes of this paper were: (1) to illustrate the US and MRI features of lower extremity injury patterns in ballet dancers, focusing on pathologies commonly encountered at a single orthopedic hospital; (2) to present complementary roles of both ultrasound and MRI in the evaluation of these injuries whenever possible; (3) to review and present our institutional approach towards therapeutic ultrasound-guided interventions by presenting explicit cases.

METHODS

Online searches were performed using the search criteria of "ballet biomechanics" and "ballet injuries." The results were then further narrowed down by limiting articles published in the past 15 years, modality (US and MRI), anatomical region (foot and ankle, hip and knee) and to major radiology, orthopedics, and sports medicine journals.

RESULTS

Performing ballet poses major stress to lower extremities and predisposes dancer to several musculoskeletal injuries. These can be adequately evaluated by both US and MRI. US is useful for evaluating superficial structures such as soft tissues, tendons, and ligaments, particularly in the foot and ankle. MRI provides superior resolution of deeper structures such as joints, bone marrow, and cartilage. In addition, US can be used as a therapeutic tool for providing quick symptomatic improvement in these athletes for who "time is money".

CONCLUSION

Performing ballet may cause major stress to the lower extremities, predominantly affecting the foot and ankle, followed by the knee and hip. US and MRI play complementary roles in evaluating various orthopedic conditions in ballet dancers, with US allowing for dynamic evaluation and guidance for interventions.

Muscle and tendon injuries: the role of biological interventions to promote and assist healing and recovery

PURPOSE

To summarize clinical studies after platelet-rich plasma (PRP) therapy for tendinopathy, plantar fasciopathy, and muscle injuries; to review PRP formulations used across studies; and to identify knowledge deficits that require further investigation.

METHODS

After a systematic review in PubMed, we identified clinical studies assessing PRP efficacy in tendon and muscle during the past decade. We standardized data extraction by grouping studies based on anatomic location; summarized patient populations, PRP formulations, and clinical outcomes; and identified knowledge deficits that require further investigation.

RESULTS

Overall, 1,541 patients had been treated with PRP in 58 clinical studies; of these, 26 addressed upper limb tendinopathies and 32 addressed the lower limb (810 patients and 731 patients treated with PRP, respectively). The quality of research is higher for the upper limb than for the lower limb (23 controlled studies, of which 17 are Level I, v 19 controlled studies, of which 6 are Level I, respectively). Patients have been treated mostly with leukocyte-platelet-rich plasma, except in the arthroscopic management of the rotator cuff. The safety and efficacy of PRP for muscle injuries has been addressed in 7 studies including 182 patients. Differences across results are mainly attributed to dissimilarities between tissues and different stages of degeneration, numbers of PRP applications, and protocols.

CONCLUSIONS

Given the heterogeneity in tendons and tendinopathies, currently, we are not able to decide whether PRP therapies are useful. Despite advances in PRP science, data are insufficient and there is a clear need to optimize protocols and obtain more high-quality clinical data in both tendinopathies and muscle injuries before making treatment recommendations.

LEVEL OF EVIDENCE

Level IV, systematic review of Level I through IV studies.

Platelet-rich plasma injections for chronic plantar fasciopathy: a systematic review

INTRODUCTION

There is an increasing interest in platelet-rich plasma (PRP) injection as a treatment for chronic plantar fasciopathy (PF). We wished to evaluate the evidence for the use of PRP in PF/fasciitis.

SOURCES OF DATA

We performed a systematic review on the effects of PRP in PF. In June 2014, we searched Medline, Cochrane, CINAHL and Embase databases using various combinations of the commercial names of each PRP preparation and 'plantar' (with its associated terms). We only included prospectively designed studies in humans.

AREAS OF AGREEMENT

Eight articles met the inclusion criteria, three of them were randomized. All studies yielded a significantly greater improvement in symptoms between baseline and last follow-up assessment. None of the papers recorded major complications.

AREAS OF CONTROVERSY

Only three randomized studies were identified; none of them had a true controlled group treated with placebo and one of the three studies had a very short (6 week) follow-up. A non-randomized study evaluating PRP versus corticosteroids (CCS) injections, and a randomized controlled trial comparing PRP and dextrose prolotherapy reported no statistical significant differences at 6 months. Most studies did not have a control group and imaging evaluation.

GROWING POINTS AND AREAS FOR RESEARCH

Evidence for the use of PRP in PF shows promising results, and this therapy appears safe. However, the number of studies available is limited and randomized placebo-controlled studies are required. Characterizing the details of the intervention and standardizing the outcome scores would help to better document the responses and optimize the treatment.