Digital goniometric measurement of knee joint motion. Evaluation of usefulness for research settings and clinical practice

Cleffken, Berry; Breukelen, Gerard van; Brink, Peter R.; Mameren, Henk van; Damink, Steven W. M. Olde

doi:10.1016/j.knee.2007.07.004

Cited by 46 publications

(36 citation statements)

References 18 publications

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“…The iGoniometer, a smartphone application software (app) for knee flexion, was used in a study to measure maximal active knee flexion angle with the result of a statistically significant smaller knee angle measurement of 1.4 degrees compared to a UG, despite a Pearson's correlation of r = 0.93 (Hambly, Sibley, & Ockendon, 2012). Although the difference was statistically significant, it is not likely to be clinically relevant given the smallest detectable differences reported by Cleffken, et al (2007) was 7.0-9.4 degrees for active maximum knee flexion and 7.5-9.5 degrees for active range of movement.…”

Section: Introductionmentioning

confidence: 74%

“…Knee angles can also be measured with high reliability using digital inclinometers (interrater, Pearson's r 0.83-0.94) (Cleffken, van Breukelen, Brink, van Mameren, & Damink, 2007). dos Santos, et al (2012) found that for knee extension the digital inclinometer had greater intra-and inter-rater reliability (ICC 0.69-0.89) than the UG (ICC 0.46-0.55) but the digital inclinometer and UG had similar reliability for knee extension ..…”

Section: Introductionmentioning

confidence: 99%

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Concurrent validity and reliability of the Simple Goniometer iPhone app compared with the Universal Goniometer

Jones

Sealey

Crowe

et al. 2014

Physiotherapy Theory and Practice

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Objectives: The aim of this study was to assess the concurrent validity and reliability of the Simple Goniometer iPhone® app compared to the Universal Goniometer.Design: Within subject comparison design comparing the Universal Goniometer with the Simple Goniometer app.Setting: James Cook University, Townsville, Queensland, Australia.Participants: Thirty-six volunteer participants, with a mean age of 60.6 years (SD 6.2). Interventions: Not applicable.Main Outcome measure: Thirty-six participants performed three standing lunges during which the knee joint angle was measured with the Simple Goniometer app and the Universal Goniometer.Results: There were no significant differences in the measures of individual knee joint angles between the Universal Goniometer and the Simple Goniometer app. Pearson correlations of 0.96-0.98 and intraclass correlation coefficients of 0.97-0.99 (95% CI 0.95-1.00) were recorded for all measures. Using the Bland-Altman method, the standard error of the mean of the differences and the standard deviation of the mean of the differences were low. Conclusion:The measurements from the Simple Goniometer iPhone® app were reliable and possessed concurrent validity for this sample and protocol when compared to the Universal Goniometer.

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Section: Introductionmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Concurrent validity and reliability of the Simple Goniometer iPhone app compared with the Universal Goniometer

Jones

Sealey

Crowe

et al. 2014

Physiotherapy Theory and Practice

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“…6 These research studies demonstrated encouraging reproducibility and validity with useful "smallest detectable differences" (SDDs). Until relatively recently, however, these were the domain of research science-expensive, not widely available and often requiring additional computer hardware to make meaningful interpretations of the data obtained.…”

Section: Introductionmentioning

confidence: 93%

Validation of a Novel Smartphone Accelerometer-Based Knee Goniometer

Ockendon

Gilbert

2012

J Knee Surg

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Loss of full knee extension following anterior cruciate ligament (ACL) surgery has been shown to impair knee function.1,2 However, there can be significant difficulties in accurately and reproducibly measuring a fixed flexion of the knee. Some studies suggest that conventional lower limb goniometry may contain errors of between 5 and 10 degrees even in experienced hands.3-5 Such errors may exceed the magnitude of a given fixed flexion deformity. We sought to find a means to eliminate the difficulties associated with palpating the boney landmarks of the femurby making calculations based entirely on the measured position of the tibia. In the setting of state funded healthcare, even a relatively small capital outlay can be prohibitive-we therefore repurposed commercially available technology.We studied the interobserver and the intraobserver reliabilities of our novel, accelerometer based, knee goniometer technique and compared it with a long-armed conventional goniometer for the assessment of fixed flexion knee deformity. Measurements on radiographs would provide a robust "gold standard" but the use of X-ray for this purpose is not routine and not without risk. We therefore chose the best commonly applied "bed-side" measurement technique. Keywords► fixed flexion ► knee ► goniometer ► accelerometer AbstractLoss of full knee extension following anterior cruciate ligament surgery has been shown to impair knee function. However, there can be significant difficulties in accurately and reproducibly measuring a fixed flexion of the knee. We studied the interobserver and the intraobserver reliabilities of a novel, smartphone accelerometer-based, knee goniometer and compared it with a long-armed conventional goniometer for the assessment of fixed flexion knee deformity. Five healthy male volunteers (age range 30 to 40 years) were studied. Measurements of knee flexion angle were made with a telescopic-armed goniometer (Lafayette Instrument, Lafayette, IN) and compared with measurements using the smartphone (iPhone 3GS, Apple Inc., Cupertino, CA) knee goniometer using a novel trigonometric technique based on tibial inclination. Bland-Altman analysis of validity and reliability including statistical analysis of correlation by Pearson's method was undertaken. The iPhone goniometer had an interobserver correlation (r) of 0.994 compared with 0.952 for the Lafayette. The intraobserver correlation was r ¼ 0.982 for the iPhone (compared with 0.927). The datasets from the two instruments correlate closely (r ¼ 0.947) are proportional and have mean difference of only À0.4 degrees (SD 3.86 degrees). The Lafayette goniometer had an intraobserver reliability AE 9.6 degrees. The interobserver reliability was AE 8.4 degrees. By comparison the iPhone had an interobserver reliability AE 2.7 degrees and an intraobserver reliability AE 4.6 degrees. We found the iPhone goniometer to be a reliable tool for the measurement of subtle knee flexion in the clinic setting.

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“…Among the methods most used to quantify ROM in physical therapy practice, manual goniometry, measured by the universal goniometer (UG), is considered the gold standard 4 . However, despite being inexpensive and easy to apply, this instrument is rater-dependent 5 , and therefore, its use has shown conflicting results between studies [6][7][8] . However, other studies 3,9,10 , showed "poor" to "excellent" reliability indices for the upper and lower limbs joints, respectively, although Aalto, Airaksinem, Harkonen, Arokoski 11 found low reliability in measurements of the knee joint.…”

Section: Introductionmentioning

confidence: 99%

Intra-rater and Inter-instrument Reliability on Range of Movement of Active Knee Extension

Barbosa¹,

Dantas²,

Silva³

et al. 2017

Motriz: rev. educ. fis.

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-The objective of the present study was to evaluate the reliability of intra-rater and inter-instrument measures during two flexibility programs. Fifty-three active and healthy males, aged between 18 and 28 years old, were randomly included in three groups: control (Cg, n = 18), static stretching (SSg, n = 17), and dynamic stretching (DSg, n = 18). All participants underwent measurements of their active range of knee extension using manual goniometry and computerized photogrammetry, measured in four separated assessments and analyzed using the SPSS, with a£5%. Both methodologies presented very strong intra-rater reliability(ICC: 0.91³0.99; P<0.001) at all four assessments in all the groups, and the instruments showed weak (r: 0.31-0.6) to strong(r: 0.61-0.9) correlation, in the Cg (P<0.05) and strong (r: 0.61-0.9) in the SSg and DSg (P<0.01),although without differences between groups, indicating that the measures are equally reliable, regardless of interventions.

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Digital goniometric measurement of knee joint motion. Evaluation of usefulness for research settings and clinical practice

Cited by 46 publications

References 18 publications

Concurrent validity and reliability of the Simple Goniometer iPhone app compared with the Universal Goniometer

Concurrent validity and reliability of the Simple Goniometer iPhone app compared with the Universal Goniometer

Validation of a Novel Smartphone Accelerometer-Based Knee Goniometer

Intra-rater and Inter-instrument Reliability on Range of Movement of Active Knee Extension

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