J
John C. Y. Leong
Researcher at University of Hong Kong
Publications - 99
Citations - 4936
John C. Y. Leong is an academic researcher from University of Hong Kong. The author has contributed to research in topics: Spinal fusion & Kyphosis. The author has an hindex of 39, co-authored 99 publications receiving 4615 citations. Previous affiliations of John C. Y. Leong include Open University of Hong Kong & Northwick Park Hospital.
Papers
More filters
Journal ArticleDOI
Prevalence and pattern of lumbar magnetic resonance imaging changes in a population study of one thousand forty-three individuals.
Kenneth M.C. Cheung,Jaro Karppinen,Danny Chan,Daniel W.H. Ho,You-Qiang Song,Pak C. Sham,Kathryn S.E. Cheah,John C. Y. Leong,Keith D. K. Luk +8 more
TL;DR: There was a positive correlation between the DDD score and low back pain and in a population setting, there is a significant association of LDD on MRI with back pain.
Journal ArticleDOI
Effects of short anterior lumbar interbody fusion on biomechanics of neighboring unfused segments
TL;DR: There is no evidence that the neighboring unfused segments are loaded beyond their physiological limits due to the fusion, however, they have to work more frequently toward the extremes of their functional ranges of motion after fusion and these effects will be more marked after a double level L4‐5‐S1 fusion.
Journal ArticleDOI
Lung function reference values in Chinese children and adolescents in Hong Kong. I. Spirometric values and comparison with other populations.
TL;DR: The findings support the conclusion that exogenous factors may contribute significantly to the differences in lung function values among ethnic groups and that it is important to examine normative values of various populations for secular trends.
Journal ArticleDOI
The TRP2 allele of COL9A2 is an age-dependent risk factor for the development and severity of intervertebral disc degeneration.
Jeffrey J.T. Jim,N Noponen-Hietala,Kenneth M.C. Cheung,Jurg Ott,Jaro Karppinen,Ahmad Sahraravand,Keith D. K. Luk,Shea Ping Yip,Pak C. Sham,You-Qiang Song,John C. Y. Leong,Kathryn S.E. Cheah,Leena Ala-Kokko,Danny Chan +13 more
TL;DR: This largest-ever population study using MRI to define DDD demonstrates for the first time that the Trp2 allele is a significant risk factor for the development and severity of degeneration.
Journal ArticleDOI
Association of the Taq I allele in vitamin D receptor with degenerative disc disease and disc bulge in a chinese population
Kenneth M.C. Cheung,Daniel W. Chan,Jaro Karppinen,Yiquin Chen,Jeffrey J.T. Jim,Shea Ping Yip,Jurg Ott,Kelvin K. Wong,Pak C. Sham,Keith D. K. Luk,Kathryn S.E. Cheah,John C. Y. Leong,John C. Y. Leong,You-Qiang Song,You-Qiang Song +14 more
TL;DR: It is shown that the t allele of vitamin D receptor Taq I is associated with a high risk of degenerative disc disease and disc bulge developing, especially in individuals younger than 40 years.