Hiroshi Ito
Asahikawa
Japan
Research Article
Early Deformation of Hip Articular Cartilage Under A High Load Before and After Labral Excision
Author(s): Hiroshi Ito, Toshiki Nakamura, Tatsuya Sato, Yasuhiro Nishida, Hiromasa Tanino and Masaru HigaHiroshi Ito, Toshiki Nakamura, Tatsuya Sato, Yasuhiro Nishida, Hiromasa Tanino and Masaru Higa
Background: It has been reported that the function of the labrum is to ensure that an increased surface area encountered the femoral head and spares the cartilage from excessive strain. The purpose of this study was to determine whether early deformation of the hip articular cartilage occurs under high-load conditions in the presence/absence of the labrum.
Methods: The hip joints of 4 beagle dogs were retrieved. A continuous static load of 80 Kg was applied for 2.5 hours. Magnetic resonance imaging (MRI) was performed immediately after the loading and at 30, 60, 90, 120, and 150 minutes after the loading. The load was then removed, and the specimens were stored for 14 h to allow the cartilage to recover. The labrum was then carefully removed, and the experiment was performed again.
Results: The maximum percentage c.. View More»
