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Extending the straight leg raise test for improved clinical evaluation of sciatica: reliability of hip internal rotation or ankle dorsiflexion (CROSBI ID 293657)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Janne Pesonen, Michael Shacklock, Pekka Rantanen, Jussi Mäki, Lauri Karttunen, Markku Kankaanpää, Olavi Airaksinen, Marinko Rade Extending the straight leg raise test for improved clinical evaluation of sciatica: reliability of hip internal rotation or ankle dorsiflexion // Bmc musculoskeletal disorders, 22 (2021), 303, 8. doi: 10.1186/s12891-021-04159-y

Podaci o odgovornosti

Janne Pesonen, Michael Shacklock, Pekka Rantanen, Jussi Mäki, Lauri Karttunen, Markku Kankaanpää, Olavi Airaksinen, Marinko Rade

engleski

Extending the straight leg raise test for improved clinical evaluation of sciatica: reliability of hip internal rotation or ankle dorsiflexion

Background: The straight leg raise (SLR) is the most commonly applied physical tests on patients with sciatica, but the sensitivity and specificity ratings for disc hernia and neural compression leave areas for improvement. Hip internal rotation tensions the lumbosacral nerve roots and ankle dorsiflexion tensions the sciatic nerve along its course. We added these movements to the SLR (extended SLR = ESLR) as structural differentiators and tested interrater reliability in patients with LBP, with and without sciatica. Methods: Forty subjects were recruited to the study by the study controller (SC), 20 in the sciatic group and in the control group. Two independent examiners (E1&E2) performed the ESLR and did not communicate to the subjects other than needed to determine the outcome of the ESLR. First, SLR was performed traditionally until first responses were evoked. At this hip flexion angle, a location-specific structural differentiation was performed to confirm whether the emerged responses were of neural origin. Cohen’s Kappa score (CK) for interrater reliability was calculated for ESLR result in detection of sciatic patients. Also, the examiners’ ESLR results were compared to the traditional SLR results. Results: The interrater agreement between Examiner 1 and Examiner 2 for the ESLR was 0.85 (p < 0.001, 95%CI: 0.71–0.99) translating to almost perfect agreement as measured by Cohen’s Kappa When the ESLR was compared to the traditional SLR, the overall agreement rate was 75% (30/40). Kappa values between the traditional SLR and the E1’s or E2’s ESLR results were 0.50 (p < 0.0001 ; 95%CI 0.27– 0.73) and 0.54 (p < 0.0001 ; 95%CI 0.30–0.77), respectively. Conclusions: ESLR with the addition of location- specific structural differentiation is a reliable and repeatable tool in discerning neural symptoms from musculoskeletal in patients with radiating low back pain. We recommend adding these movements to the standard SLR with aim of improving diagnostic ability.

SLR, Sciatica, low back pain, MR, nerve root, Kappa, reproducibility, sciatica

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Podaci o izdanju

22

2021.

303

8

objavljeno

1471-2474

10.1186/s12891-021-04159-y

Povezanost rada

Kliničke medicinske znanosti, Temeljne medicinske znanosti

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