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Pain Deterioration Within 1 Year Predicts Future Decline of Walking Ability: A 7-Year Prospective Observational Study of Elderly Female Patients With Knee Osteoarthritis Living in a Rural District

Introduction: Knee osteoarthritis (KOA) is commonly a main cause of locomotive syndrome. Consequently, appropriate timing of intervention is clinically important. Materials and Method: Fifty female patients of a primary care clinic in a rural district fulfilled the criteria for KOA and were recruite...

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Published in:Geriatric orthopaedic surgery & rehabilitation 2018, Vol.9, p.2151459318799855-2151459318799855
Main Authors: Yamaguchi, Naoki, Takahashi, Tsuneari, Ueno, Takashi, Hiyama, Shuhei, Ogawa, Masaya, Matsumura, Tomohiro, Sasanuma, Hideyuki, Takeshita, Katsushi
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Language:English
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Summary:Introduction: Knee osteoarthritis (KOA) is commonly a main cause of locomotive syndrome. Consequently, appropriate timing of intervention is clinically important. Materials and Method: Fifty female patients of a primary care clinic in a rural district fulfilled the criteria for KOA and were recruited and underwent knee medical checkups. They initially underwent physical examination bilaterally of knees by an orthopedic surgeon, radiological evaluation, and they answered the outcome of Japanese Knee Osteoarthritis Measurement (JKOM). They were asked to answer JKOM 1 and 7 years after the initial checkup. Fourteen patients were lost to follow-up due to death or moving to a nursing home. Thirty-six patients were finally included and divided into 2 age-matched groups according to walking ability at the 7-year follow-up: group A, walking ability did not decline (n = 24), and group B, walking ability did decline (n = 12). The walking ability was measured as per ordinal classification as: 5 (walking without any aid), 4 (walking with a crutch), 3 (walking using walker), 2 (walking only possible in parallel bars), and 1 (wheelchair). We completed between-group comparisons of each of the 3 subsections of the JKOM (pain, limitation in mobility related to daily activity, and restriction of participation in social life and health perception), during each period. Results: There were significant differences in JKOM pain score (12.9 vs 18.3, P = .0058) and total score (41.3 vs 55.8, P = .0093) between the groups at 1-year follow-up, even though base scores did not differ. Discussion: Clinicians should pay attention to changes in perceived knee pain and should not continue prolonged conservative therapy in patients exhibiting rapid deterioration. Conclusion: Female patients with KOA whose pain deteriorated within 1 year may require early intervention to prevent future decline in walking ability.
ISSN:2151-4593
2151-4585
2151-4593
DOI:10.1177/2151459318799855