Ultrasound guided injection of plantar fasciitis

Prevalence of Systemic Sclerosis in Primary Biliary Cholangitis Using the New ACR/EULAR Classification Criteria

OBJECTIVE

Systemic sclerosis (SSc) is a well-established disease associated with primary biliary cholangitis (PBC). However, the original 1980 American College of Rheumatology (ACR) criteria have poor sensitivity, especially for the detection of earlier SSc in previous studies. The objective was to evaluate the prevalence of SSc in patients with PBC using more sensitive 2001 LeRoy and Medsger criteria and the 2013 ACR/European League Against Rheumatism (EULAR) classification criteria. The secondary objective was to evaluate the frequency of individual clinical features.

METHODS

One hundred consecutive patients with PBC without previously diagnosed SSc were recruited between 2005 and 2007 from a tertiary care gastroenterology clinic. All patients underwent a complete clinical examination, determination of SSc-specific antibodies, and a nailfold capillary microscopy. Fulfillment of the 3 different criteria sets was analyzed, along with individual disease features.

RESULTS

Of 100 patients with PBC, 1% met the ACR 1980 criteria, 22% met the 2001 LeRoy and Medsger criteria for early SSc, and 17% the 2013 ACR/EULAR criteria. Raynaud phenomenon, SSc-related antibodies, and SSc capillaroscopic patterns were the most prevalent findings, with the highest sensitivities to help guide future screening.

CONCLUSION

Our data show a high prevalence of SSc in patients with PBC with probable underestimation by previous studies using the original ACR criteria. Comorbid SSc should be actively searched for based on newly described criteria to improve detection and increase benefits of earlier treatment.

Autologous whole blood or corticosteroid injections for the treatment of epicondylopathy and plantar fasciopathy? A systematic review and meta-analysis of randomized controlled trials

OBJECTIVES

To compare the efficacy of autologous whole blood with that of corticosteroid injections on epicondylopathy and plantar fasciopathy.

DESIGN

Systematic review and meta-analysis.

METHODS

The databases of PubMed, Web of Science, CENTRAL, and Scopus were searched up to 6th May 2015. Randomized trials comparing the effects of autologous whole blood and corticosteroid injections on epicondylopathy or plantar fasciopathy were included. Trials exploring the efficacy of platelet-rich plasma were excluded. The primary outcome was pain relief. The secondary outcome included the assessment of composite outcomes. All outcomes were assessed at 2-6 (short-term) weeks, 8-13 (intermediate-term) weeks and 24-26 (medium-term) weeks. Quality assessment was performed with the Cochrane risk of bias tool.

RESULTS

Nine trials were included. For pain relief, there was a statistically significant difference in favour of corticosteroids in the short term (SMD 0.52; 95%CIs 0.18 to 0.86; I² = 53%; p < 0.01). A statistically significant difference in favour of autologous whole blood was indicated in the medium-term assessment of pain relief on epicondylopathy.

CONCLUSIONS

Corticosteroids were marginally superior to autologous whole blood in relieving pain on plantar fasciopathy at 2-6 weeks. Autologous whole blood provided significant clinical relief on epicondylopathy at 8-24 weeks. Conclusions were limited by the risk of bias.

Ultrasound-guided retro-calcaneal bursa corticosteroid injection for refractory Achilles tendinitis in patients with seronegative spondyloarthropathy: efficacy and follow-up study

Ultrasound (US)-guided corticosteroid injection has been shown to be safe and effective for varied causes of plantar fasciitis; however, its use for Achilles tendinitis is controversial. We studied the efficacy and changes in US findings at Achilles enthesitis after corticosteroid injection in patients with spondyloarthropathy (SpA). Patients with SpA with symptomatic Achilles enthesitis, refractory to 6 weeks of full-dose NSAIDs, were offered US-guided local corticosteroid injection. Injected entheses were examined by US (both B mode and power Doppler) at baseline and 6 weeks after injection. Standard OMERACT definitions were used to define enthesitis. Achilles tendon thickness >5.29 mm, 2 cm proximal to insertion in long axis, was considered thickened. Twenty-seven symptomatic Achilles tendons (in 18 patients) were injected with 20 mg methylprednisolone under US guidance baseline, and 6-week follow-up US features were compared. All patients reported improvement in pain (VAS) in the affected tendon after injection (p < 0.0001). Simultaneously, improvement in local inflammatory changes were noted, in the form of significant reduction in tendon thickness (p < 0.0001), vascularity (p < 0.0001), peritendinous oedema (p = 0.001), bursitis and bursal vascularity (p < 0.001 and < 0.0001, respectively). There was no change in bone erosions and enthesophyte. None of the patients had tendon rupture or other injection-related complications at 6 weeks of follow-up. US-guided local corticosteroid injection is an effective and safe modality for refractory Achilles enthesitis in patients with SpA and leads to reversion of acute changes at entheseal site.

Targeting the Plantar Fascia for Corticosteroid Injection

Plantar fasciitis is often a difficult condition to treat. It is related to repetitive strain of the fascia at its attachment to the heel bone. This condition quite often appears with the concomitant presence of a plantar calcaneal heel spur. Corticosteroid injection is a popular treatment choice for plantar fasciitis, and accurate localization of the injected medication is essential for successful resolution of symptoms after the injection. In the present brief technical communication, a method for targeting the attachment of the plantar fascia to the medial tubercle of the tuberosity of the calcaneus is described. The targeting method uses the lateral radiograph of the foot to aid in localization of the proximal attachment of the plantar fascia to the calcaneus.

Sonographically guided deep plantar fascia injections: where does the injectate go?

OBJECTIVES

To determine the distribution of sonographically guided deep plantar fascia injections in an unembalmed cadaveric model.

METHODS

A single experienced operator completed 10 sonographically guided deep plantar fascia injections in 10 unembalmed cadaveric specimens (5 right and 5 left) obtained from 6 donors (2 male and 4 female) aged 49 to 95 years (mean, 77.5 years) with a mean body mass index of 23.2 kg/m(2) (range, 18.4-26.3 kg/m(2)). A 12-3-MHz linear array transducer was used to direct a 22-gauge, 38-mm stainless steel needle deep to the plantar fascia at the anterior aspect of the calcaneus using an in-plane, medial-to-lateral approach. In each case, 1.5 mL of 50% diluted colored latex was injected deep to the plantar fascia. After a minimum of 72 hours, study coinvestigators dissected each specimen to assess injectate placement.

RESULTS

All 10 injections accurately placed latex adjacent to the deep side of the plantar fascia at the anterior calcaneus. However, the flexor digitorum brevis (FDB) origin from the plantar fascia variably limited direct latex contact with the plantar fascia, and small amounts of latex interdigitated with the FDB origin in 90% (9 of 10). In all 10 specimens, latex also covered the traversing first branch of the lateral plantar nerve (FBLPN, ie, Baxter nerve) between the FDB and quadratus plantae muscles. No latex was found in the plantar fat pad or plantar fascia in any specimen.

CONCLUSIONS

Sonographically guided deep plantar fascia injections reliably deliver latex deep to the plantar fascia while avoiding intrafascial injection. However, the extent of direct plantar fascia contact is variable due to the intervening FDB. On the contrary, the traversing FBLPN is reliably covered by the injection. Deep plantar fascia injections may have a role in the management of refractory plantar fasciitis, particularly following failed superficial perifascial or intrafascial injections, in cases of preferential deep plantar fascia involvement, or when entrapment/irritation of the distal FBLPN is suspected.

Sonographically guided corticosteroid injection for treatment of plantar fasciosis

OBJECTIVES

The purpose of this study was to prospectively investigate the effect of sonographically guided corticosteroid injection on the clinical and radiologic responses in patients with proximal plantar fasciosis.

METHODS

Thirty-one consecutive patients with unilateral plantar fasciosis were enrolled. A 4-cm 21-gauge needle was positioned in a caudocranial oblique manner, and the needle was withdrawn to the near edge of the fascia so that the solution dispersed around the edge. Two milliliters (20 mg/mL) of lignocaine/prilocaine, 1%, and 0.5 mL (20 mg) of methylprednisolone acetate solutions were injected separately. The plantar fascia and fat pad thickness, fascial echogenicity, and perifascial edema were assessed with a 10-5 MHz linear array transducer. The American Orthopedic Foot and Ankle Society midfoot scale was used to assess function, alignment, and pain. The initial radiologic and clinical measurements were compared with data obtained not less than 6 weeks after the injections.

RESULTS

A statistically significant decrease in the mean plantar fascia thickness was detected after treatment (P < .0001). There was no statistically significant difference in the plantar fascia echogenicity before and after treatment (P = .11). A statistically significant decrease was found for perifascial edema (P < .0001), and a statistically significant increase in American Orthopedic Foot and Ankle Society scores was detected (P = .0007). There was no decrease in fat pad thickness (P > .1). Plantar fascia rupture was detected in 1 patient.

CONCLUSIONS

Sonographically guided corticosteroid injection enables real-time imaging of the plantar fascia during needle insertion. A caudocranial oblique injection beneath the fascia may have an incremental value in the treatment response in patients with plantar fasciosis.

An approach to the diagnosis and treatment of plantar fasciitis

Plantar fasciitis is a painful condition affecting many athletes. Anatomic and biomechanical factors combined with overuse can contribute to its genesis. Correction of gait disturbances, changes in footwear, use of tension night splints, and stretching of tight calf and plantar tissues have all be proven to relieve symptoms. Anti-inflammatory modalities, including medications, iontophoresis, and corticosteroid injection generally provide temporary improvement. Recent studies on the efficacy of extracorporeal shock wave therapy are conflicting. Injections with platelet-rich plasma or sclerotic agents are currently under investigation for use in this and other similar conditions. A small percentage of patients with refractory symptoms may benefit from surgical release of the plantar fascia. Diagnosis and correction of biomechanical factors leading to this condition should be a mainstay of treatment and may prevent recurrences.

Comparison of ultrasound-, palpation-, and scintigraphy-guided steroid injections in the treatment of plantar fasciitis

BACKGROUND

The aim of the study was to compare the efficacies of steroid injections guided by scintigraphy, ultrasonography, and palpation in plantar fasciitis.

METHODS

A total of 35 heels of 27 patients were randomly assigned to three steroid injection groups: palpation-guided (pg), ultrasound-guided (ug), and scintigraphy-guided (sg). Patients were evaluated for pain intensity before the injections and at the last follow-up of 25.3 months with a 100-mm visual analog scale (VAS).

RESULTS

There were significant improvements in plantar fascia thickness, fat pad thickness, and VAS. Among the three groups of ug-pg, ug-sg, and pg-sg there were no statistically significant differences after treatment (P = 0.017, MWU = 36.5; P = 0.023, MWU = 29.5; and P = 0.006, MWU = 13, respectively).

CONCLUSIONS

The ug, pg, and sg injections were effective in the conservative treatment of plantar fasciitis. We are of the opinion that steroid injections should be performed, preferably with palpation or ultrasonographic guidance.

Accuracy of ultrasound guided injections in the foot and ankle

BACKGROUND

Ultrasonography is an emerging imaging modality which affords dynamic, real-time, cost-effective and surgeon controlled visualization of the foot and ankle. The purpose of this study was to evaluate the accuracy of ultrasound guided injections for common injection sites in the foot and ankle.

MATERIALS AND METHODS

In 10 fresh cadaver feet, ultrasound guidance was utilized to inject a methylene blue-saline mixture into (1) the first MTP joint, (2) the second MTP joint, (3) the tibiotalar joint, (4) the Achilles peritendinous space, (5) the flexor hallucis longus sheath, (6) the posterior tibial tendon sheath, and (7) the subtalar joint. Dissection was then undertaken to assess injection accuracy.

RESULTS

Ultrasound guidance allowed the avoidance of intervening neurovascular and tendinous structures. Ultrasound guided MTP, ankle, Achilles, PTT and FHL peritendinous injections were 100% accurate. Ultrasound guided subtalar injection was 90% accurate.

CONCLUSION

Ultrasound appears to be a highly accurate method of localizing injections into a variety of locations in the foot and ankle.

CLINICAL RELEVANCE

Ultrasound's ability to display soft-tissue structures may be an advantage over blind injection and fluoroscopic injection techniques.

Plantar fasciitis: current concepts to expedite healing

Plantar fasciitis is a degenerative condition affecting many active people. Anatomic and biomechanical factors can contribute to its genesis, as can overuse. Clinicians can recommend correcting gait disorders, modifying footwear, using tension night splints, and stretching tight calf and plantar tissues to bring about lasting relief. Anti-inflammatory modalities, such as medications, iontophoresis, and corticosteroid injection generally provide temporary improvement. Recent studies on the efficacy of extracorporeal shock wave therapy are conflicting. A small percentage of patients who have refractory symptoms may benefit from surgical division of the plantar fascia.