Head-to-head comparison of the Lyon Schuss and fixed flexion radiographic techniques. Long-term reproducibility in normal knees and sensitivity to change in osteoarthritic knees

Graverand, M.-P. Hellio Le; Vignon, E.; Brandt, Kenneth D.; Mazzuca, Steven A.; Piperno, M.; Buck, Robert J.; Charles, H. Cecil; Hunter, David J.; Jackson, Christopher; Kraus, Virginia B.; Link, Thomas M.; Schnitzer, Thomas J.; Vaz, Anand; Wyman, Bradley T.

doi:10.1136/ard.2007.077834

Cited by 96 publications

(107 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In a small group (3%) with the greatest JSW at study entry, JSW appeared to increase slightly. This may have reflected either measurement error or perhaps in some cases hypertrophic repair of articular cartilage as has been shown on radiographs (13) and confirmed by MRI (14). …”

Section: Discussionmentioning

confidence: 83%

Identifying common trajectories of joint space narrowing over two years in knee osteoarthritis

Bartlett

Ling

Mayo

et al. 2011

Arthritis Care & Research

View full text Add to dashboard Cite

Objective. Little is known about the natural history of knee osteoarthritis (OA). We sought to identify common patterns of joint space narrowing (JSN) in well-characterized knee OA patients in the placebo arm of a 2-year international study. Methods. We performed secondary data analyses of 622 adults ages 39 -80 years in North America (n ‫؍‬ 310) and Europe (n ‫؍‬ 312) with symptomatic knee OA. Fluoroscopically positioned semiflexed anteroposterior radiographs were obtained at 0, 12, and 24 months. Group-based trajectory modeling was used to identify distinctive groups of individuals with similar trajectories of JSN, taking into account sex, age, and body mass index. Results. Seven groups were identified. Four exhibited joint space width (JSW) stability over 2 years representing the most common trajectory (71%), which was unrelated to initial JSW. Atypical courses included slow, rapid, and moderate progressors; most had significant JSN at study entry. Slow progressors (20%) had a mean JSN of 0.2 mm over 2 years. Only 2% of the sample demonstrated rapid JSN (2.1 mm), while 7% had JSN of 0.7 mm. Rapid progressors tended to be men, while slow and moderate progressors were older and heavier. Conclusion. Most (70%) people with OA demonstrated no significant JSN over 2 years; 20% showed slow progression, 7% had moderate, and 2% had rapid JSN. Progressors tended to have less JSW at study entry and were older and heavier; rapid progressors were more likely to be men. Understanding common patterns of the course of knee OA may offer new opportunities to target those at greatest risk of disability.

show abstract

Section: Discussionmentioning

confidence: 83%

Identifying common trajectories of joint space narrowing over two years in knee osteoarthritis

Bartlett

Ling

Mayo

et al. 2011

Arthritis Care & Research

View full text Add to dashboard Cite

show abstract

“…A recent study compared the fixed flexion (16) and Lyon schuss (17) techniques in a 12-month longitudinal study (11). They reported a JSL of 0.22 mm with the Lyon schuss view and Ϫ0.01 mm with fixed flexion view in knees with OA, suggesting that the Lyon schuss view was more sensitive because of fluoroscopic alignment of the medial tibial plateau.…”

Section: Discussionmentioning

confidence: 99%

“…Measurement of JSW is recommended as the best feature of the progression of tibiofemoral OA (9,10); however, few data about normal values for JSW are currently available (11). In addition, the existence of a physiologic age-related joint space loss (JSL) independent of OA is debated.…”

Section: Introductionmentioning

confidence: 99%

Radiologic assessment of age‐related knee joint space changes in women: A 4‐year longitudinal study

Gensburger

Arlot

Sornay‐Rendu

et al. 2009

Arthritis & Rheumatism

View full text Add to dashboard Cite

Objective. To analyze a population-based cohort of women in order to establish normal values of joint space width (JSW) and to evaluate the existence of age-related joint space loss (JSL). Methods. Knee radiographs were performed 4 years apart in women from the OFELY (Os des Femmes de Lyon) Cohort. Posteroanterior radiographs of both knees were taken in semiflexion with a standardized fluoroscopically assisted protocol. Radiographs were qualitatively evaluated using a scoring system based on the Altman score that assessed joint space narrowing, osteophytes, and sclerosis for each tibiofemoral compartment and each side. For quantitative assessment, radiographs were digitized using a video camera, and specific software was used to measure JSW in every compartment. Results. We evaluated the radiographs of 606 women (ages 39 -90 years, mean 62 years) and found that in all subjects, JSW significantly decreased with age in every compartment (r ‫؍‬ ؊0.12 to ؊0.16, P < 0.001), including in 358 subjects without any radiographic abnormality related to osteoarthritis (OA) at baseline. The longitudinal analysis confirmed a significant loss over 4 years of ϳ0.30 mm (6%) for the medial compartment. Multiple regression analysis did not identify significant predictors of JSL among clinical risk factors and biochemical markers of bone and cartilage turnover. Conclusion. In this first longitudinal study of a population-based cohort of women, we have established normal values of JSW and shown that JSW decreases with aging, especially at the medial compartment, even in subjects without any radiographic abnormalities related to OA.

show abstract

“…Healthy control participants had to show a complete absence of symptoms, no sign of radiographic knee OA in the anterior-posterior radiographs (KLG0), and a body mass index 28 kg/m 2 . Additionally, Lyon Schuss radiographs (24,25) were obtained for all participants. Both radiographic techniques were used to refine the two groups, such that the healthy group (n ¼ 77) was KLG0 in both radiographs, while the OA group (n ¼ 75) had KLG >0 in the anterior-posterior or Lyon Schuss radiographs.…”

Section: Methodsmentioning

confidence: 99%

An efficient subset of morphological measures for articular cartilage in the healthy and diseased human knee

Buck¹,

Wyman

Graverand

et al. 2010

Magn. Reson. Med.

View full text Add to dashboard Cite

The relationship between three-dimensional, MRI-based morphologic measurements commonly taken of knee cartilage was examined to determine whether a subset of variables fully reflects differences observed in cartilage in cross-sectional and longitudinal studies. The benefits of a subset of measures include increased statistical power due to reduced multiple comparisons, improved understanding of relationships between the morphologic measures of articular knee cartilage, and greater efficiency in reporting results. One hundred fifty-two women (77 healthy and 75 with knee osteoarthritis) had coronal 3-T MR images of the knee acquired at baseline and at 24 months. Measures of femorotibial cartilage morphology (surface area, thickness, volume, etc.) were determined in the medial and lateral tibia and femur. Cartilage thickness (mean cartilage thickness over the total area of the [subchondral] bone), total subchondral bone area, and percentage of denuded area of the subchondral bone were found to explain over 90% of the cross-sectional and longitudinal variation observed in other measures of cartilage morphology commonly reported in knee osteoarthritis. Hence, these three measures of cartilage morphology explain nearly all variation in a larger set of common cartilage morphology measures both cross-sectionally and longitudinally, both in healthy and in osteoarthritic knees. These variables hence define an efficient subset for describing structural status and change in osteoarthritic cartilage. Magn Reson Med 63:680-690, 2010.V C 2010 Wiley-Liss, Inc.

show abstract

Head-to-head comparison of the Lyon Schuss and fixed flexion radiographic techniques. Long-term reproducibility in normal knees and sensitivity to change in osteoarthritic knees

Abstract: LS and FF radiographs offer similar reproducibility in JSW measurement. However, presumably due to its superiority in aligning the MTP, the LS view is much more sensitive to JSN in OA knees.

Cited by 96 publications

References 13 publications

Identifying common trajectories of joint space narrowing over two years in knee osteoarthritis

Identifying common trajectories of joint space narrowing over two years in knee osteoarthritis

Radiologic assessment of age‐related knee joint space changes in women: A 4‐year longitudinal study

An efficient subset of morphological measures for articular cartilage in the healthy and diseased human knee

Contact Info

Product

Resources

About