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Systematic review and meta-analysis of the prevalence of neuropathic-like pain and/or pain sensitization in people with knee and hip osteoarthritis

Zolio L, Lim KY, McKenzie JE, Yan MK, Estee M, Hussain SM, et al.

Osteoarthritis Cartilage, 2021 08;29(8):1096-1116.
PMID: 33971205 DOI: 10.1016/j.joca.2021.03.021

OBJECTIVE: To determine the prevalence of neuropathic-like pain (NP) and pain sensitization (PS) defined by self-report questionnaires in knee and hip osteoarthritis, and whether prevalence is potentially explained by disease-severity or affected joint.
DESIGN: MEDLINE, EMBASE, CINAHL were systematically searched (1990-April 2020) for studies describing the prevalence of NP and PS in knee and hip osteoarthritis using self-report questionnaires. Random-effects meta-analysis was performed. Statistical heterogeneity between studies and sub-groups (affected joint and population source as a proxy for disease severity) was assessed (I2 statistic and the Chi-squared test).
RESULTS: From 2,706 non-duplicated references, 39 studies were included (2011-2020). Thirty-six studies reported on knee pain and six on hip pain. For knee osteoarthritis, the pooled prevalence of NP was: using PainDETECT, possible NP(score ≥13) 40% (95%CI 32-48%); probable NP(score >18) 20% (95%CI 15-24%); using Self-Report Leeds Assessment of Neuropathic Symptoms and Signs, 32% (95%CI 26-38%); using Douleur Neuropathique (DN4) 41% (95% CI 24-59%). The prevalence of PS using Central Sensitization Inventory (CSI) was 36% (95% CI 12-59%). For hip osteoarthritis, the pooled prevalence of NP was: using PainDETECT, possible NP 29% (95%CI 22-37%%); probable NP 9% (95%CI 6-13%); using DN4 22% (95%CI 12-31%) in one study. The prevalence of possible NP pain was higher at the knee (40%) than the hip (29%) (difference 11% (95% CI 0-22%), P = 0.05).
CONCLUSIONS: Using self-report questionnaire tools, NP was more prevalent in knee than hip osteoarthritis. The prevalence of NP in knee and hip osteoarthritis were similar for each joint regardless of study population source or tool used. Whether defining NP using self-report questionnaires enables more effective targeted therapy in osteoarthritis requires investigation.

Matched MeSH terms: Osteoarthritis, Hip/physiopathology*
Fulltext Influence of hip and knee osteoarthritis on dynamic postural control parameters among older fallers

Mat S, Ng CT, Tan MP

J Rehabil Med, 2017 Mar 06;49(3):258-263.
PMID: 28218341 DOI: 10.2340/16501977-2202

OBJECTIVE: To compare the relationship between postural control and knee and hip osteoarthritis in older adults with and without a history of falls.
METHODS: Fallers were those with ≥ 2 falls or 1 injurious fall over 12 months. Non-fallers were volunteers with no falls in the past year. Radiological evidence of osteoarthritis with no reported symptoms was considered "asymptomatic osteoarthritis", while "symptomatic osteoarthritis" was defined as radiographic osteoarthritis with pain or stiffness. Dynamic postural control was quantified with the limits of stability test measured on a balance platform (Neurocom® Balancemaster, California, USA). Parameters assessed were end-point excursion, maximal excursion, and directional control.
RESULTS: A total of 102 older individuals, mean age 73 years (standard deviation 5.7) years were included. The association between falls and poor performance in maximal excursion and directional control was confounded by age and comorbidities. In the same linear equation model with falls, symptomatic osteoarthritis remained independently associated with poor end-point excursion (β-coefficient (95% confidence interval) -6.80 (-12.14 to -1.42)).
CONCLUSION: Poor performance in dynamic postural control (maximal excursion and directional control) among fallers was not accounted for by hip/knee osteoarthritis, but was confounded by old age and comorbidities. Loss of postural control due to hip/knee osteoarthritis is not a risk factor for falls among community-dwelling older adults.
Study site: Departments of Emergency Medicine, Primary Care and Geriatric Medicine, in a teaching hospital in Kuala Lumpur, Malaysia

Matched MeSH terms: Osteoarthritis, Hip/physiopathology*
Does acupuncture improve pain and function in people with hip osteoarthritis? A Cochrane Review summary with commentary

Chan SC, Patrick Engkasan J

Int J Rheum Dis, 2020 Dec;23(12):1741-1743.
PMID: 33118670 DOI: 10.1111/1756-185X.13948
Matched MeSH terms: Osteoarthritis, Hip/physiopathology
Effects of pharmaceutical care on adherence and persistence to bisphosphonates in postmenopausal osteoporotic women

Lai PS, Chua SS, Chew YY, Chan SP

J Clin Pharm Ther, 2011 Oct;36(5):557-67.
PMID: 21916908 DOI: 10.1111/j.1365-2710.2010.01210.x

Studies have shown that comprehensive interventions by pharmacists can improve adherence and persistence to osteoporosis therapy, but the association between adherence and bone turnover markers (BTMs) has never been studied. Therefore, the aim of this study was to evaluate the effects of pharmaceutical care on medication adherence (and its effects on BTMs), as well as persistence of postmenopausal osteoporotic women to prescribed bisphosphonates.

Matched MeSH terms: Hip/physiopathology