Rust P A, Ek E T H, Tham S K Y
1 Department of Plastic Surgery, St John's Hospital, Edinburgh, UK.
2 Department of Orthopedics, Monash University, Melbourne, Australia.
J Hand Surg Eur Vol. 2017 Jul;42(6):605-609. doi: 10.1177/1753193417690473. Epub 2017 Feb 14.
The purpose of this study was to determine the alignment of the normal trapeziometacarpal joint and any changes in its alignment with age. Radial, dorsal and dorsoradial subluxation were measured on computerized tomographic scans in 50 joints of 50 adults aged 18 to 62. There were statistically significant correlations between increasing age and dorsoradial subluxation but no significant correlation with dorsal and radial subluxation. Significant dorsoradial subluxation occurs after 46 years of age in the normal trapeziometacarpal joint. A mean dorsoradial subluxation of 21% (range 14%-30%) can be considered normal in this age group.
本研究的目的是确定正常大多角骨-第一掌骨关节的对线情况及其对线随年龄的变化。在50名年龄在18至62岁的成年人的50个关节的计算机断层扫描上测量桡侧、背侧和背桡侧半脱位。年龄增长与背桡侧半脱位之间存在统计学上的显著相关性，但与背侧和桡侧半脱位无显著相关性。正常大多角骨-第一掌骨关节在46岁后出现显著的背桡侧半脱位。在该年龄组中，平均背桡侧半脱位21%（范围14%-30%）可被视为正常。
