TY - JOUR
T1 - No associations between self-reported knee joint instability and radiographic features in knee osteoarthritis patients prior to Total Knee Arthroplasty
T2 - A cross-sectional analysis of the Longitudinal Leiden Orthopaedics Outcomes of Osteo-Arthritis study (LOAS) data
AU - Leichtenberg, Claudia S.
AU - Meesters, Jorit J.L.
AU - Kroon, Herman M.
AU - Verdegaal, Suzan H.M.
AU - Tilbury, Claire
AU - Dekker, Joost
AU - Nelissen, Rob G.H.H.
AU - Vliet Vlieland, Thea P.M.
AU - van der Esch, Martin
PY - 2017/8/1
Y1 - 2017/8/1
N2 - BACKGROUND: To describe the prevalence of self-reported knee joint instability in patients with pre-surgery knee osteoarthritis (OA) and to explore the associations between self-reported knee joint instability and radiological features.METHODS: A cross-sectional study including patients scheduled for primary Total Knee Arthroplasty (TKA). Self-reported knee instability was examined by questionnaire. Radiological features consisted of osteophyte formation and joint space narrowing (JSN), both scored on a 0 to three scale. Scores >1 are defined as substantial JSN or osteophyte formation. Regression analyses were provided to identify associations of radiological features with self-reported knee joint instability.RESULTS: Two hundred and sixty-five patients (mean age 69years and 170 females) were included. Knee instability was reported by 192 patients (72%). Substantial osteophyte formation was present in 78 patients (41%) reporting and 33 patients (46%) not reporting knee joint instability. Substantial JSN was present in 137 (71%) and 53 patients (73%), respectively. Self-reported knee instability was not associated with JSN (relative to score 0, odds ratios (95% CI) of score 1, 2 and 3 were 0.87 (0.30-2.54), 0.98 (0.38-2.52), 0.68 (0.25-1.86), respectively) or osteophyte formation (relative to score 0, odds ratios (95% CI) of score 1, 2 and 3 were 0.77 (0.36-1.64), 0.69 (0.23-1.45), 0.89 (0.16-4.93), respectively). Stratified analysis for pain, age and BMI showed no associations between self-reported knee joint instability and radiological features.CONCLUSION: Self-reported knee joint instability is not associated with JSN or osteophyte formation.
AB - BACKGROUND: To describe the prevalence of self-reported knee joint instability in patients with pre-surgery knee osteoarthritis (OA) and to explore the associations between self-reported knee joint instability and radiological features.METHODS: A cross-sectional study including patients scheduled for primary Total Knee Arthroplasty (TKA). Self-reported knee instability was examined by questionnaire. Radiological features consisted of osteophyte formation and joint space narrowing (JSN), both scored on a 0 to three scale. Scores >1 are defined as substantial JSN or osteophyte formation. Regression analyses were provided to identify associations of radiological features with self-reported knee joint instability.RESULTS: Two hundred and sixty-five patients (mean age 69years and 170 females) were included. Knee instability was reported by 192 patients (72%). Substantial osteophyte formation was present in 78 patients (41%) reporting and 33 patients (46%) not reporting knee joint instability. Substantial JSN was present in 137 (71%) and 53 patients (73%), respectively. Self-reported knee instability was not associated with JSN (relative to score 0, odds ratios (95% CI) of score 1, 2 and 3 were 0.87 (0.30-2.54), 0.98 (0.38-2.52), 0.68 (0.25-1.86), respectively) or osteophyte formation (relative to score 0, odds ratios (95% CI) of score 1, 2 and 3 were 0.77 (0.36-1.64), 0.69 (0.23-1.45), 0.89 (0.16-4.93), respectively). Stratified analysis for pain, age and BMI showed no associations between self-reported knee joint instability and radiological features.CONCLUSION: Self-reported knee joint instability is not associated with JSN or osteophyte formation.
KW - Aged
KW - Arthroplasty, Replacement, Knee
KW - Cohort Studies
KW - Cross-Sectional Studies
KW - Female
KW - Humans
KW - Joint Instability/complications
KW - Knee Joint/diagnostic imaging
KW - Longitudinal Studies
KW - Male
KW - Middle Aged
KW - Osteoarthritis, Knee/complications
KW - Prevalence
KW - Prospective Studies
KW - Regression Analysis
KW - Self Report
UR - http://www.scopus.com/inward/record.url?scp=85018854669&partnerID=8YFLogxK
U2 - https://doi.org/10.1016/j.knee.2017.04.001
DO - https://doi.org/10.1016/j.knee.2017.04.001
M3 - Article
C2 - 28462798
SN - 0968-0160
VL - 24
SP - 816
EP - 823
JO - KNEE
JF - KNEE
IS - 4
ER -