A non-invasive biomechanical device to quantify knee rotational laxity: Verification of the device in human cadaveric specimens
Background: Biomechanical measurement tools have been developed and widely used to precisely quantify knee anterior-posterior laxity after anterior cruciate ligament (ACL) injury. However, validated objective device to document knee rotational laxity, though being developed by different researchers,...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-04-01
|
| Series: | Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214687318300955 |
| _version_ | 1819230269771612160 |
|---|---|
| author | Jeffrey Chun-Yin Lee Patrick Shu-Hang Yung Mak-Ham Lam Aaron See-Long Hung Daniel Tik-Pui Fong Wood Yee Chan Kai-Ming Chan |
| author_facet | Jeffrey Chun-Yin Lee Patrick Shu-Hang Yung Mak-Ham Lam Aaron See-Long Hung Daniel Tik-Pui Fong Wood Yee Chan Kai-Ming Chan |
| author_sort | Jeffrey Chun-Yin Lee |
| collection | DOAJ |
| description | Background: Biomechanical measurement tools have been developed and widely used to precisely quantify knee anterior-posterior laxity after anterior cruciate ligament (ACL) injury. However, validated objective device to document knee rotational laxity, though being developed by different researchers, are not yet widely used in the daily clinical practice. A new biomechanical device was developed to quantify knee internal and external rotations. Methods: The reliability of the new biomechanical device which measures knee rotations were tested. Different torques (1-10Nm) were applied by the device to internally and externally rotate human cadaveric knees, which were held in a flexion angle of 30°. The rotations were measured by the device in degrees. There were two independent testers, and each tester carried out three trials. Intra-rater and inter-rater reliability were quantified in terms of intraclass correlation (ICC) coefficient among trials and between testers. The device was verified by the comparison with a computer assisted navigation system. ICC was measured. Mean, standard deviation and 95% confident interval of the difference as well as the root mean square difference were calculated. The correlations were deemed to be reliable if the ICC was above 0.75. Results: The intra-rater and inter-rater reliability achieved high correlation for both internal and external rotation, ranged from 0.959 to 0.992. ICC between the proposed meter and the navigation system for both internal and external rotation was 0.78. The mean differences were 2.3° and 2.5° for internal and external rotation respectively. Conclusions: A new knee rotational laxity meter was proposed in this study. Its reliability was verified by showing high correlation among trials. It also showed good correlation to a gold standard of measurement. It might be used to document knee rotational laxity for various purposes, especially after ACL injury, after further validation of the device in human subjects. Keywords: Tibial rotation, Knee stability, Measurement, Laxity |
| first_indexed | 2024-12-23T11:26:23Z |
| format | Article |
| id | doaj.art-149e7f128a83421b81173b629b339ef7 |
| institution | Directory Open Access Journal |
| issn | 2214-6873 |
| language | English |
| last_indexed | 2024-12-23T11:26:23Z |
| publishDate | 2019-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology |
| spelling | doaj.art-149e7f128a83421b81173b629b339ef72022-12-21T17:48:56ZengElsevierAsia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology2214-68732019-04-01161923A non-invasive biomechanical device to quantify knee rotational laxity: Verification of the device in human cadaveric specimensJeffrey Chun-Yin Lee0Patrick Shu-Hang Yung1Mak-Ham Lam2Aaron See-Long Hung3Daniel Tik-Pui Fong4Wood Yee Chan5Kai-Ming Chan6Department of Orthopaedics and Traumatology, Tuen Mun Hospital, Hong Kong, ChinaDepartment of Orthopaedics and Traumatology, Prince of Wales Hospital, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; The Hong Kong Jockey Club Sports Medicine and Health Sciences Centre, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; Corresponding author. Department of Orthopaedics and Traumatology, Prince of Wales Hospital, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.Department of Orthopaedics and Traumatology, Prince of Wales Hospital, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; The Hong Kong Jockey Club Sports Medicine and Health Sciences Centre, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, ChinaDepartment of Orthopaedics and Traumatology, Prince of Wales Hospital, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; The Hong Kong Jockey Club Sports Medicine and Health Sciences Centre, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, ChinaNational Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UKSchool of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, ChinaDepartment of Orthopaedics and Traumatology, Prince of Wales Hospital, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; The Hong Kong Jockey Club Sports Medicine and Health Sciences Centre, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, ChinaBackground: Biomechanical measurement tools have been developed and widely used to precisely quantify knee anterior-posterior laxity after anterior cruciate ligament (ACL) injury. However, validated objective device to document knee rotational laxity, though being developed by different researchers, are not yet widely used in the daily clinical practice. A new biomechanical device was developed to quantify knee internal and external rotations. Methods: The reliability of the new biomechanical device which measures knee rotations were tested. Different torques (1-10Nm) were applied by the device to internally and externally rotate human cadaveric knees, which were held in a flexion angle of 30°. The rotations were measured by the device in degrees. There were two independent testers, and each tester carried out three trials. Intra-rater and inter-rater reliability were quantified in terms of intraclass correlation (ICC) coefficient among trials and between testers. The device was verified by the comparison with a computer assisted navigation system. ICC was measured. Mean, standard deviation and 95% confident interval of the difference as well as the root mean square difference were calculated. The correlations were deemed to be reliable if the ICC was above 0.75. Results: The intra-rater and inter-rater reliability achieved high correlation for both internal and external rotation, ranged from 0.959 to 0.992. ICC between the proposed meter and the navigation system for both internal and external rotation was 0.78. The mean differences were 2.3° and 2.5° for internal and external rotation respectively. Conclusions: A new knee rotational laxity meter was proposed in this study. Its reliability was verified by showing high correlation among trials. It also showed good correlation to a gold standard of measurement. It might be used to document knee rotational laxity for various purposes, especially after ACL injury, after further validation of the device in human subjects. Keywords: Tibial rotation, Knee stability, Measurement, Laxityhttp://www.sciencedirect.com/science/article/pii/S2214687318300955 |
| spellingShingle | Jeffrey Chun-Yin Lee Patrick Shu-Hang Yung Mak-Ham Lam Aaron See-Long Hung Daniel Tik-Pui Fong Wood Yee Chan Kai-Ming Chan A non-invasive biomechanical device to quantify knee rotational laxity: Verification of the device in human cadaveric specimens Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology |
| title | A non-invasive biomechanical device to quantify knee rotational laxity: Verification of the device in human cadaveric specimens |
| title_full | A non-invasive biomechanical device to quantify knee rotational laxity: Verification of the device in human cadaveric specimens |
| title_fullStr | A non-invasive biomechanical device to quantify knee rotational laxity: Verification of the device in human cadaveric specimens |
| title_full_unstemmed | A non-invasive biomechanical device to quantify knee rotational laxity: Verification of the device in human cadaveric specimens |
| title_short | A non-invasive biomechanical device to quantify knee rotational laxity: Verification of the device in human cadaveric specimens |
| title_sort | non invasive biomechanical device to quantify knee rotational laxity verification of the device in human cadaveric specimens |
| url | http://www.sciencedirect.com/science/article/pii/S2214687318300955 |
| work_keys_str_mv | AT jeffreychunyinlee anoninvasivebiomechanicaldevicetoquantifykneerotationallaxityverificationofthedeviceinhumancadavericspecimens AT patrickshuhangyung anoninvasivebiomechanicaldevicetoquantifykneerotationallaxityverificationofthedeviceinhumancadavericspecimens AT makhamlam anoninvasivebiomechanicaldevicetoquantifykneerotationallaxityverificationofthedeviceinhumancadavericspecimens AT aaronseelonghung anoninvasivebiomechanicaldevicetoquantifykneerotationallaxityverificationofthedeviceinhumancadavericspecimens AT danieltikpuifong anoninvasivebiomechanicaldevicetoquantifykneerotationallaxityverificationofthedeviceinhumancadavericspecimens AT woodyeechan anoninvasivebiomechanicaldevicetoquantifykneerotationallaxityverificationofthedeviceinhumancadavericspecimens AT kaimingchan anoninvasivebiomechanicaldevicetoquantifykneerotationallaxityverificationofthedeviceinhumancadavericspecimens AT jeffreychunyinlee noninvasivebiomechanicaldevicetoquantifykneerotationallaxityverificationofthedeviceinhumancadavericspecimens AT patrickshuhangyung noninvasivebiomechanicaldevicetoquantifykneerotationallaxityverificationofthedeviceinhumancadavericspecimens AT makhamlam noninvasivebiomechanicaldevicetoquantifykneerotationallaxityverificationofthedeviceinhumancadavericspecimens AT aaronseelonghung noninvasivebiomechanicaldevicetoquantifykneerotationallaxityverificationofthedeviceinhumancadavericspecimens AT danieltikpuifong noninvasivebiomechanicaldevicetoquantifykneerotationallaxityverificationofthedeviceinhumancadavericspecimens AT woodyeechan noninvasivebiomechanicaldevicetoquantifykneerotationallaxityverificationofthedeviceinhumancadavericspecimens AT kaimingchan noninvasivebiomechanicaldevicetoquantifykneerotationallaxityverificationofthedeviceinhumancadavericspecimens |