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Conundrum of mechanical knee symptoms : Signifying feature of a meniscal tear?

Thorlund, Jonas Bloch ; Pihl, Kenneth ; Nissen, Nis ; Jørgensen, Uffe ; Fristed, Jakob Vium ; Lohmander, L. Stefan LU orcid and Englund, Martin LU orcid (2019) In British journal of sports medicine 53(5). p.299-303
Abstract

Background: Mechanical knee symptoms are often considered important in the decision to perform knee arthroscopy on the suspicion of a meniscal tear. We investigated if presence of a meniscal tear at knee arthroscopy in adults is associated with presence of preoperative self-reported mechanical knee symptoms. Methods: We used data from Knee Arthroscopy Cohort Southern Denmark (KACS). KACS consists of patients aged 18 years or older referred to knee arthroscopy on the suspicion of a meniscal tear at four recruiting hospitals between 1 February 2013 and 31 January 2015. Of 1259 invited patients, 908 (72%) replied to the baseline questionnaire. With 91 patients excluded, the study sample consisted of 641 and 176 patients with and without a... (More)

Background: Mechanical knee symptoms are often considered important in the decision to perform knee arthroscopy on the suspicion of a meniscal tear. We investigated if presence of a meniscal tear at knee arthroscopy in adults is associated with presence of preoperative self-reported mechanical knee symptoms. Methods: We used data from Knee Arthroscopy Cohort Southern Denmark (KACS). KACS consists of patients aged 18 years or older referred to knee arthroscopy on the suspicion of a meniscal tear at four recruiting hospitals between 1 February 2013 and 31 January 2015. Of 1259 invited patients, 908 (72%) replied to the baseline questionnaire. With 91 patients excluded, the study sample consisted of 641 and 176 patients with and without a meniscal tear confirmed at surgery, respectively. Exposure was meniscal tear as determined by the knee surgeon during arthroscopy. Main outcomes were preoperative mechanical knee symptoms defined as self-reported catching/locking or self-reported inability to straighten knee fully. Results: 55% of all patients reported symptoms of catching/locking and 47% were unable to straighten their knee fully. Preoperative mechanical symptoms were equally prevalent in patients with and without a meniscal tear (prevalence ratio catching/locking 0.89, 95% CI 0.77 to 1.03, and inability to straighten knee fully, prevalence ratio 1.02, 95% CI 0.84 to 1.23). Interpretation: Patient-reported mechanical symptoms were equally common irrespective of presence or absence of a meniscal tear in patients undergoing arthroscopy for suspicion of a meniscal tear. Our findings suggest that mechanical knee symptoms have a limited value when considering indication for meniscal surgery. Trial registration number: NCT01871272; Results.

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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
arthroscopy, epidemiology, knee, meniscal pathology, osteoarthritis
in
British journal of sports medicine
volume
53
issue
5
pages
299 - 303
publisher
BMJ Publishing Group
external identifiers
  • scopus:85052912113
  • pmid:30170997
ISSN
0306-3674
DOI
10.1136/bjsports-2018-099431
language
English
LU publication?
yes
id
4315ab7e-1cfb-4f6a-80e7-33f372338142
date added to LUP
2018-10-24 11:07:32
date last changed
2024-04-15 14:56:55
@article{4315ab7e-1cfb-4f6a-80e7-33f372338142,
  abstract     = {{<p>Background: Mechanical knee symptoms are often considered important in the decision to perform knee arthroscopy on the suspicion of a meniscal tear. We investigated if presence of a meniscal tear at knee arthroscopy in adults is associated with presence of preoperative self-reported mechanical knee symptoms. Methods: We used data from Knee Arthroscopy Cohort Southern Denmark (KACS). KACS consists of patients aged 18 years or older referred to knee arthroscopy on the suspicion of a meniscal tear at four recruiting hospitals between 1 February 2013 and 31 January 2015. Of 1259 invited patients, 908 (72%) replied to the baseline questionnaire. With 91 patients excluded, the study sample consisted of 641 and 176 patients with and without a meniscal tear confirmed at surgery, respectively. Exposure was meniscal tear as determined by the knee surgeon during arthroscopy. Main outcomes were preoperative mechanical knee symptoms defined as self-reported catching/locking or self-reported inability to straighten knee fully. Results: 55% of all patients reported symptoms of catching/locking and 47% were unable to straighten their knee fully. Preoperative mechanical symptoms were equally prevalent in patients with and without a meniscal tear (prevalence ratio catching/locking 0.89, 95% CI 0.77 to 1.03, and inability to straighten knee fully, prevalence ratio 1.02, 95% CI 0.84 to 1.23). Interpretation: Patient-reported mechanical symptoms were equally common irrespective of presence or absence of a meniscal tear in patients undergoing arthroscopy for suspicion of a meniscal tear. Our findings suggest that mechanical knee symptoms have a limited value when considering indication for meniscal surgery. Trial registration number: NCT01871272; Results.</p>}},
  author       = {{Thorlund, Jonas Bloch and Pihl, Kenneth and Nissen, Nis and Jørgensen, Uffe and Fristed, Jakob Vium and Lohmander, L. Stefan and Englund, Martin}},
  issn         = {{0306-3674}},
  keywords     = {{arthroscopy; epidemiology; knee; meniscal pathology; osteoarthritis}},
  language     = {{eng}},
  number       = {{5}},
  pages        = {{299--303}},
  publisher    = {{BMJ Publishing Group}},
  series       = {{British journal of sports medicine}},
  title        = {{Conundrum of mechanical knee symptoms : Signifying feature of a meniscal tear?}},
  url          = {{http://dx.doi.org/10.1136/bjsports-2018-099431}},
  doi          = {{10.1136/bjsports-2018-099431}},
  volume       = {{53}},
  year         = {{2019}},
}