Evidence map›Paper›PMID 42032528›Full record

ArticleBMC musculoskeletal disorders2026

Clinical phenotypes of neuropathic pain and central sensitization in patients with knee osteoarthritis: demographic data, radiographic severity, and pain intensity.

Mitsuhiko Kubo, Yuki Nosaka, Kosuke Kumagai, Yasutaka Amano, Eiji Isoya, Shinji Imai

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Article in BMC musculoskeletal disorders, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

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1 citing paper in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Mitsuhiko KuboDepartment of Sports and Musculoskeletal Pain Medicine, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu-City, Shiga Prefecture, Japan. mkubo@belle.shiga-med.ac.jp.ORCID http://orcid.org/0000-0003-2766-5937
Yuki NosakaDepartment of Orthopaedic Surgery, Shiga University of Medical Science, Otsu-City, Japan.
Kosuke KumagaiDepartment of Orthopaedic Surgery, Shiga University of Medical Science, Otsu-City, Japan.
Yasutaka AmanoDepartment of Orthopaedic Surgery, Shiga University of Medical Science, Otsu-City, Japan.
Eiji IsoyaDepartment of Orthopaedic Surgery, Jinseikai Kohnan Hospital, Koka-City, Japan.
Shinji ImaiDepartment of Orthopaedic Surgery, Shiga University of Medical Science, Otsu-City, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe aimed to simultaneously assess neuropathic pain (NP) and central sensitization (CS) in patients with knee osteoarthritis to determine their prevalence and identify patient characteristics associated with NP and CS based on demographic data, pain intensity, and radiographic severity commonly assessed in routine clinical practice.

methodsPatients with knee osteoarthritis (136) were evaluated. NP was assessed using the painDETECT questionnaire, with scores ≥ 13 categorized as NP( +). CS was assessed using the Central Sensitization Inventory (CSI), with scores ≥ 30 classified as CS( +). Pain intensity was measured at rest and during exercise using the visual analogue scale. Patients were grouped into low-pain and high-pain categories based on the average visual analogue scale score of pain at rest. Radiographic severity was assessed using the Kellgren-Lawrence grading system, classifying patients into low-grade (II–III) and high-grade (IV) categories. Demographic data, pain intensity, radiographic severity, painDETECT, and CSI scores were compared between the low- and high-pain intensity, low- and high-grade severity, NP( +) and NP( −), and CS( +) and CS( −) groups.

resultsNP and CS were identified in 15.4% and 16.2% of patients, respectively, and either NP or CS mechanisms were observed in 25.6%. CSI scores were higher in the high-pain group, and pain at rest was significantly higher in NP( +) and CS( +) groups.

conclusionsEither NP or CS mechanisms were identified in 25.6% of patients with knee OA. Higher pain at rest was associated with NP and CS, particularly CS, in this cohort.

Indexed as

Central Nervous System SensitizationNeuralgiaOsteoarthritis, KneeAgedFemaleHumansMaleMiddle AgedPain MeasurementPhenotypeRadiographySeverity of Illness IndexCentral sensitizationKnee osteoarthritisNeuropathic painPain at restPain mechanism

Identifiers

PMID42032528
PMCPMC13248331

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.