Reliability of classification of ring and little finger carpometacarpal joint fracture subluxations: a comparison between two-dimensional computed tomography and three-dimensional computed tomography classifications.
The aims of this study were to develop a classification for ring and little finger carpometacarpal joint fracture subluxations based on three-dimensional computed tomography images and evaluate the inter- and intraobserver reliability of the three-dimensional computed tomography classification. A retrospective review was performed of 30 cases of ring and little finger carpometacarpal joint fracture subluxations from 2005 to 2013. We classified ring and little finger carpometacarpal joint fracture subluxations into three types based on three-dimensional computed tomography images. An orthopaedic surgeon with 2 years of experience, a consultant hand surgeon with 8 years of experience, and a consultant radiologist with 9 years of experience, who were completely blind to the treatment algorithm, evaluated 30 cases twice at a 2-week interval using our new classification based on three-dimensional computed tomography images and the other classification based on two-dimensional computed tomography images. Our three-dimensional computed tomography classification showed almost perfect interobserver and intraobserver reliability and resulted in a better level of agreement than two-dimensional computed tomography classification.
Department of Orthopedic Surgery, Seonam University College of Medicine, Myongji Hospital, Goyang - Si, Korea.
J H
JH
Kim
Biomedical Research Institute, Seoul National University Bundang Hospital, Seoul, Korea.
S-S
SS
Kwon
Department of Orthopedic Surgery, Seonam University College of Medicine, Myongji Hospital, Goyang - Si, Korea.
S J
SJ
Moon
Department of Orthopedic Surgery, Seonam University College of Medicine, Myongji Hospital, Goyang - Si, Korea.
J S
JS
Choe
Department of Orthopedic Surgery, Seonam University College of Medicine, Myongji Hospital, Goyang - Si, Korea.
H I
HI
Kwak
Department of Orthopedic Surgery, Ewha Womans University Mokdong Hospital.
S Y
SY
Lee
Department of Radiology, Konkuk University School of Medicine.
H J
HJ
Le
Department of Orthopedic Surgery, Seonam University College of Medicine, Myongji Hospital, Goyang - Si, Korea doctoryub@naver.com.
J Y
JY
Kim
D000293:Adolescent; D000328:Adult; D000368:Aged; D052737:Carpometacarpal Joints / Q000000981:diagnostic imaging* / Q000293:injuries; D000072039:Fracture Dislocation / Q000145:classification* / Q000000981:diagnostic imaging*; D050723:Fractures, Bone / Q000145:classification* / Q000000981:diagnostic imaging*; D006801:Humans; D021621:Imaging, Three-Dimensional; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D015203:Reproducibility of Results; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D055815:Young Adult
Carpometacarpal joint; classification; fracture; fracture subluxation; reliability