Publish in this journal
Journal Information
Vol. 23. Issue 6.
Pages 491-496 (01 November 2019)
Download PDF
More article options
Vol. 23. Issue 6.
Pages 491-496 (01 November 2019)
Original Research
DOI: 10.1016/j.bjpt.2018.11.001
What are the clinical implications of knee crepitus to individuals with knee osteoarthritis? An observational study with data from the Osteoarthritis Initiative
Marcella Ferraz Pazzinattoa,b, Danilo de Oliveira Silvaa,b, Nathálie Clara Fariaa, Milena Simicc, Paulo Henrique Ferreirac, Fábio Mícolis de Azevedoa,
Corresponding author

Corresponding author at: Rua Roberto Simonsen, 305, CEP: 19060-900, Presidente Prudente, SP, Brazil.
, Evangelos Pappasc
a Physical Therapy Department, School of Science and Technology, Universidade Estadual Paulista “Julio de Mesquita Filho” (UNESP), Presidente Prudente, SP, Brazil
b La Trobe Sports and Exercise Medicine Research Centre (LASEM), School of Allied Health, La Trobe University, Bundoora, Victoria, Australia
c The University of Sydney, Discipline of Physiotherapy, Faculty of Health Sciences, Sydney, NSW, Australia

  • Presence of knee crepitus did not affect knee strength or objective function.

  • People with knee crepitus present lower self-reported physical function (small effect).

  • People with knee crepitus present lower quality of life (small effect).

Article information
Full Text
Download PDF
Tables (2)
Table 1. Characteristics of individuals with knee osteoarthritis presenting no crepitus and crepitus (case-control design).
Table 2. Limb-specific characteristics of individuals with knee osteoarthritis presenting crepitus in one knee (within-subject design).
Show moreShow less

Crepitus is a common clinical feature of knee osteoarthritis. However, the importance of crepitus in the overall clinical presentation of individuals with knee osteoarthritis is unknown.


(A) To compare function, pain and quality of life between individuals with knee osteoarthritis with and without crepitus; (B) to compare whether individuals with knee osteoarthritis in both knees, but crepitus in just one, differ in terms of function pain, and knee strength.


Setting: Observational study. Participants: (A) A total of 584 participants with crepitus who had the same Kellgren–Lawrence grade on both knees were matched for gender, body mass index and Kellgren-Lawrence grade to participants without crepitus on both knees. (B) 361 participants with crepitus in only one knee and with the same Kellgren-Lawrence grade classification on both knees were included. Main outcome measure(s): A – Self-reported function, pain, quality of life, 20-m walk test and chair-stand test. B –Knee extensor and flexor strength, self-reported function and pain.


A – Individuals with crepitus had lower self-reported function, quality of life and higher pain compared to those without crepitus (3–11%; small effect=0.17–0.41, respectively). No difference was found in objective function between groups. B – Self-reported function was lower in the limb with crepitus compared to the limb without crepitus (15%; trivial effect=0.09). No difference was found in pain and knee strength between-groups.


Individuals with knee osteoarthritis and knee crepitus have slightly lower self-reported physical function and knee-related quality of life (small or trivial effect). However, the presence of knee crepitus is not associated with objective function or knee strength.

Knee osteoarthritis
Quality of life
Recovery of function


These are the options to access the full texts of the publication Brazilian Journal of Physical Therapy

If you already have your login data, please click here .

If you have forgotten your password you can you can recover it by clicking here and selecting the option “I have forgotten my password”
Comprar acceso al artículo

Comprando el artículo el PDF del mismo podrá ser descargado

Precio 22,50 €

Comprar ahora
Phone for subscriptions and reporting of errors
From Monday to Friday from 9 a.m. to 6 p.m. (GMT + 1) except for the months of July and August which will be from 9 a.m. to 3 p.m.
Calls from Spain
932 415 960
Calls from outside Spain
+34 932 415 960
Brazilian Journal of Physical Therapy

Subscribe to our newsletter

Article options
en pt
Cookies policy Política de cookies
To improve our services and products, we use "cookies" (own or third parties authorized) to show advertising related to client preferences through the analyses of navigation customer behavior. Continuing navigation will be considered as acceptance of this use. You can change the settings or obtain more information by clicking here. Utilizamos cookies próprios e de terceiros para melhorar nossos serviços e mostrar publicidade relacionada às suas preferências, analisando seus hábitos de navegação. Se continuar a navegar, consideramos que aceita o seu uso. Você pode alterar a configuração ou obter mais informações aqui.