scholarly journals Increased joint space narrowing after arthroscopic partial meniscectomy: data from the osteoarthritis initiative

2019 ◽  
Vol 27 ◽  
pp. S471-S472
Author(s):  
D.C. Santana ◽  
S.R. Oak ◽  
Y. Jin ◽  
A. Rothy ◽  
L.-L. Lee ◽  
...  
Keyword(s):  
Joint Space Narrowing ◽  
Joint Space ◽  
Partial Meniscectomy ◽  
Arthroscopic Partial Meniscectomy ◽  
Osteoarthritis Initiative

scholarly journals Joint Space Loss after Arthroscopic Partial Meniscectomy: Data from the Osteoarthritis Initiative

2013 ◽  
Vol 1 (4_suppl) ◽  
pp. 2325967113S0003
Author(s):  
Alexander Rothy ◽  
Steven Cherney ◽  
Stephen D. Fening ◽  
Jeffrey Duryea ◽  
Carl S. Winalski ◽  
...  
Keyword(s):  
Joint Space ◽  
Partial Meniscectomy ◽  
Arthroscopic Partial Meniscectomy ◽  
Osteoarthritis Initiative ◽  
Joint Space Loss

scholarly journals Automated Knee Osteoarthritis Assessment Increases Physicians’ Agreement Rate and Accuracy: Data from the Osteoarthritis Initiative

Cartilage ◽  
2019 ◽  
pp. 194760351988879 ◽  
Author(s):  
Stefan Nehrer ◽  
Richard Ljuhar ◽  
Peter Steindl ◽  
Rene Simon ◽  
Dietmar Maurer ◽  
...  
Keyword(s):  
Joint Space Narrowing ◽  
Detection System ◽  
Intraclass Correlation ◽  
Plain Radiograph ◽  
Joint Space ◽  
Research Society ◽  
Computer Assisted ◽  
Agreement Rate ◽  
Osteoarthritis Initiative ◽  
The Impact

Objective. To assess the impact of a computerized system on physicians’ accuracy and agreement rate, as compared with unaided diagnosis. Methods. A set of 124 unilateral knee radiographs from the Osteoarthritis Initiative (OAI) study were analyzed by a computerized method with regard to Kellgren-Lawrence (KL) grade, as well as joint space narrowing, osteophytes, and sclerosis Osteoarthritis Research Society International (OARSI) grades. Physicians scored all images, with regard to osteophytes, sclerosis, joint space narrowing OARSI grades and KL grade, in 2 modalities: through a plain radiograph ( unaided) and a radiograph presented together with the report from the computer assisted detection system ( aided). Intraclass correlation between the physicians was calculated for both modalities. Furthermore, physicians’ performance was compared with the grading of the OAI study, and accuracy, sensitivity, and specificity were calculated in both modalities for each of the scored features. Results. Agreement rates for KL grade, sclerosis, and osteophyte OARSI grades, were statistically increased in the aided versus the unaided modality. Readings for joint space narrowing OARSI grade did not show a statistically difference between the 2 modalities. Readers’ accuracy and specificity for KL grade >0, KL >1, sclerosis OARSI grade >0, and osteophyte OARSI grade >0 was significantly increased in the aided modality. Reader sensitivity was high in both modalities. Conclusions. These results show that the use of an automated knee OA software increases consistency between physicians when grading radiographic features of OA. The use of the software also increased accuracy measures as compared with the OAI study, mostly through increases in specificity.

Hand Joint Space Narrowing and Osteophytes Are Associated with Magnetic Resonance Imaging-defined Knee Cartilage Thickness and Radiographic Knee Osteoarthritis: Data from the Osteoarthritis Initiative

2011 ◽  
Vol 39 (1) ◽  
pp. 161-166 ◽  
Author(s):  
IDA K. HAUGEN ◽  
SEBASTIAN COTOFANA ◽  
MARTIN ENGLUND ◽  
TORE K. KVIEN ◽  
DONATUS DREHER ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Joint Space Narrowing ◽  
Joint Space ◽  
Cartilage Thickness ◽  
Resonance Imaging ◽  
Knee Cartilage ◽  
Knee Oa ◽  
Osteoarthritis Initiative ◽  
Hand Radiographs

Objective.To evaluate whether features of radiographic hand osteoarthritis (OA) are associated with quantitative magnetic resonance imaging (MRI)-defined knee cartilage thickness, radiographic knee OA, and 1-year structural progression.Methods.A total of 765 participants in Osteoarthritis Initiative (OAI; 455 women, mean age 62.5 yrs, SD 9.4) obtained hand radiographs (at baseline), knee radiographs (baseline and Year 1), and knee MRI (baseline and Year 1). Hand radiographs were scored for presence of osteophytes and joint space narrowing (JSN). Knee radiographs were scored according to the Kellgren-Lawrence (KL) scale. Cartilage thickness in the medial and lateral femorotibial compartments was measured quantitatively from coronal FLASHwe images. We examined the cross-sectional and longitudinal associations between features of hand OA (total osteophyte and JSN scores) and knee cartilage thickness, 1-year knee cartilage thinning (above smallest detectable change), presence of knee OA (KL grade ≥ 3), and progression of knee OA (KL change ≥ 1) by linear and logistic regression. Both hand OA features were included in a multivariate model (if p ≤ 0.25) adjusted for age, sex, and body mass index (BMI).Results.Hand JSN was associated with reduced knee cartilage thickness (ß = −0.02, 95% CI −0.03, −0.01) in the medial femorotibial compartment, while hand osteophytes were associated with the presence of radiographic knee OA (OR 1.10, 95% CI 1.03–1.18; multivariate models) with both hand OA features as independent variables adjusted for age, sex, and BMI). Radiographic features of hand OA were not associated with 1-year cartilage thinning or radiographic knee OA progression.Conclusion.Our results support a systemic OA susceptibility and possibly different mechanisms for osteophyte formation and cartilage thinning.

scholarly journals One-year change in radiographic joint space width in patients with unilateral joint space narrowing: Data from the osteoarthritis initiative

2010 ◽  
Vol 62 (7) ◽  
pp. 924-931 ◽  
Author(s):  
O. D. Benichou ◽  
D. J. Hunter ◽  
D. R. Nelson ◽  
A. Guermazi ◽  
F. Eckstein ◽  
...  
Keyword(s):  
Joint Space Narrowing ◽  
Joint Space Width ◽  
Joint Space ◽  
Osteoarthritis Initiative ◽  
One Year ◽  
Space Width

scholarly journals Association between thigh muscle strength four years after partial meniscectomy and radiographic features of osteoarthritis 11 years later

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Ylva B. Ericsson ◽  
Ewa M. Roos ◽  
Henrik Owman ◽  
Leif E. Dahlberg
Keyword(s):  
Muscle Strength ◽  
Joint Space Narrowing ◽  
Joint Space ◽  
Partial Meniscectomy ◽  
Thigh Muscle ◽  
Middle Aged ◽  
Knee Oa ◽  
Contralateral Knee ◽  
Aged Subjects

Abstract Background Meniscus injury and meniscectomy both entail increased risk of knee osteoarthritis (OA). Thigh muscle weakness is a suggested mediator of OA but there is little evidence of its importance for knee OA development after meniscectomy. This study aimed to examine the association between thigh muscle strength after partial meniscectomy in middle-aged subjects with a non-traumatic meniscal tear and later radiographic knee OA changes. Methods Thirty-four out of 45 participants in an exercise-trial underwent testing for isokinetic thigh muscle strength 4 years after arthroscopic partial meniscectomy and had radiographic examination 11 years later (15 years post-surgery, mean age at follow-up of 57 years (range 50–61)). Outcomes were grade of joint space narrowing and osteophyte score in the medial tibiofemoral compartment of the operated knee and the contralateral knee. We tested the association between muscle strength at baseline and the radiographic outcomes at follow-up using logistic regression analyses adjusted for sex and overweight. Results At follow-up, 33/34 subjects had joint space narrowing and 27/34 subjects had osteophytes in the operated knee, in the contralateral knee joint space narrowing was found in 23 subjects. In the operated knee baseline knee extensor and flexor strength were negatively associated with grade of joint space narrowing at follow-up (OR 0.972 and 0.956, p = 0.028 and 0.026, respectively) and also with osteophyte score (OR 0.968 and 0.931, p = 0.017 and 0.011, respectively). In the contralateral knee longitudinal associations between strength and radiographic OA features were similar, OR 0.949–0.972, p < 0.05. Conclusion The finding that stronger thigh muscles 4 years after meniscectomy were associated with less severe osteoarthritic changes in the medial tibiofemoral compartment of both the operated and contralateral knee 11 years later, may suggest that strong thigh muscles can help to preserve joint integrity in middle-aged subjects at risk of knee OA.

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