Silfverskiold Test

andreapodo · Apr 17, 2018

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A reduce dorsiflexion movement of the Ankle in a common condition. Silfverskiold Test is a valid method to identify This limitation. Can I have informations about normal values of Silfverskiold test. Normal values consist in an incresed of 10 degree between the position with extended knee and flexed knee or is sufficient have a dorsiflexion of 10 degree with flexed knee?
Thanks a lot

Craig Payne · Apr 20, 2018

There are theoretically no normal values as general there is a subject specific normal values that probably vary substantially from person to person.

NewsBot · Apr 21, 2018

Validation of a New Device for Measuring Isolated Gastrocnemius Contracture and Evaluation of the Reliability of the Silfverskiöld Test.
Molund M et al
Foot Ankle Int. 2018 Apr 1:1071100718770386.

BACKGROUND:
Important aspects on the diagnostics of isolated gastrocnemius contractures (IGCs) have been poorly described. This study was designed to validate a new ankle range of motion (ROM) measuring device for diagnosing an IGC. In addition, we wanted to investigate the reliability of the clinical Silfverskiöld test.

METHODS:
Twelve health care personnel (24 feet) were examined by 4 testers on 3 different occasions for the reliability testing of the new ankle ROM measuring device. The same participants were examined using the Silfverskiöld test to examine the reliability of the clinical test. Eleven patients (15 feet) with IGC were examined before gastrocnemius recession, immediately after surgery, and 3 months after surgery to examine the validity and responsiveness of the ankle ROM device.

RESULTS:
An intraclass correlation coefficient (ICC) >0.85 was found for both inter- and intrarater reliability for the new ankle ROM device. The device confirmed an IGC in 13 of 15 feet before surgery and 3 of 13 feet at 3-month follow-up. At baseline, the measured ankle dorsiflexion was median 3 degrees with the knee in extension, which increased to 10 degrees ( P < .001) immediately after surgery and 12 degrees ( P = .003) at 3-month follow-up. ICC values of 0.230 to 0.791 were observed for the inter- and intrarater reliability testing of the clinical Silfverskiöld test.

CONCLUSION:
The new ankle ROM measuring device was reliable and responsive for detecting IGC. The Silfverskiöld test had poor inter- and intrarater reliability. Level of evidence Level II, prospective cohort study.
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NewsBot · Aug 24, 2020

Clinical Implications of a One-hand Versus Two-hand Technique in the Silfverskiöld Test for Gastrocnemius Equinus
David A Goss, Jr et al
Cureus. 2020 Jan; 12(1): e6555.

Introduction

Isolated gastrocnemius equinus contracture has been associated with several foot and ankle pathologies within the literature. The Silfverskiöld test is commonly used to identify isolated gastrocnemius contracture, however, the proper technique for performing the test has been scrutinized. The purpose of this study was to determine if there is a clinical significance in the ankle dorsiflexion that is obtained when the examination is performed incorrectly with a single hand versus the correct two-hand technique.

Methods

Thirty consecutive new patients with conditions associated with gastrocnemius equinus were included in the study. The Silfverskiöld test was performed with a two-hand technique and a single-hand technique. The amount of dorsiflexion obtained with the knee in full extension was measured and recorded using an extendable goniometer for each technique, with the arms aligned with the fifth metatarsal and fibular head.

Results

The average amount of dorsiflexion that was obtained with the two-hand technique with the knee in full extension was 76.3°±4.2°. When the one-hand technique was utilized the average amount of dorsiflexion obtained with the knee in full extension was 88.4°±4.2°. This was found to be statistically significant (p<0.01).

Conclusion

This study demonstrates that if the Silfverskiöld test is not performed correctly, the diagnosis of an isolated gastrocnemius contracture could be underappreciated. Accordingly, it may be important to perform the test with two hands in order to neutralize the hindfoot, midfoot, and forefoot, so that the dorsiflexion motion is through the tibiotalar joint alone.
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