EBRA - A METHOD TO MEASURE MIGRATION OF ACETABULAR COMPONENTS

被引:159
作者
KRISMER, M [1 ]
BAUER, R [1 ]
TSCHUPIK, J [1 ]
MAYRHOFER, P [1 ]
机构
[1] UNIV INNSBRUCK, INST MATH & GEOMETRY, INNSBRUCK, AUSTRIA
关键词
HIP; PROSTHESIS; PROSTHESIS FAILURE; MIGRATION;
D O I
10.1016/0021-9290(94)00177-6
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
In orthopedics there is a demand for determining migration of hip sockets by evaluation of standard radiographs. In this case problems are caused mainly by changing pelvis positions on the X-ray table at successive exposures. A method (EBRA) is described that evaluates standard AP radiographs without requiring additional means at exposure (e.g, ball markers). Simulating the spatial situation it computes parameters of longitudinal and transverse migration of prosthetic cup and femoral head. A comparability algorithm using a grid of transverse and longitudinal tangents of the pelvis contour divides serial radiographs into sets of comparable ones. Comparability of serial radiographs takes place if the distances of corresponding grid lines do not transcend a given limit L. Migration is measured only between comparable radiographs. Different studies are described concerning the interdependence of pelvis rotations and changes of the grid lines, the degree of pelvis rotations appearing in practice, the choice of the limit L, the properties of the comparability algorithm and the accuracy of EBRA. The 95% confidence limits for EBRA results are 1.0 mm for longitudinal and 0.8 mm for transverse migration.
引用
收藏
页码:1225 / 1236
页数:12
相关论文
共 17 条
[1]   THE GRID RADIOGRAPH - A SIMPLE TECHNIQUE FOR CONSISTENT HIGH-RESOLUTION VISUALIZATION OF THE HIP [J].
AMSTUTZ, HC ;
OUZOUNIAN, T ;
GRAUER, D ;
FLINK, C ;
KIRKPATRICK, J ;
BASSETT, L .
JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME, 1986, 68A (07) :1052-1056
[2]   EVALUATION OF ACETABULAR ANTEVERSION FOLLOWING TOTAL HIP ARTHROPLASTY - NECESSITY OF PROPER CENTERING [J].
GOERGEN, TG ;
RESNICK, D .
BRITISH JOURNAL OF RADIOLOGY, 1975, 48 (568) :259-260
[3]   MEASUREMENT OF HIP PROSTHESES USING IMAGE-ANALYSIS - THE MAXIMA HIP TECHNIQUE [J].
HARDINGE, K ;
PORTER, ML ;
JONES, PR ;
HUKINS, DWL ;
TAYLOR, CJ .
JOURNAL OF BONE AND JOINT SURGERY-BRITISH VOLUME, 1991, 73 (05) :724-728
[4]   ACCURACY OF THE NUNN METHOD IN MEASURING ACETABULAR CUP MIGRATION [J].
ILCHMANN, T ;
FREEMAN, MAR ;
MJOBERG, B .
UPSALA JOURNAL OF MEDICAL SCIENCES, 1992, 97 (01) :67-68
[5]  
Ilchmann T, 1992, J Arthroplasty, V7, P121, DOI 10.1016/0883-5403(92)90004-A
[6]  
ILCHMANN T, 1993, COMMUNICATION
[7]   CLINICAL AND RADIOGRAPHIC EVALUATION OF TOTAL HIP-REPLACEMENT - A STANDARD SYSTEM OF TERMINOLOGY FOR REPORTING RESULTS [J].
JOHNSTON, RC ;
FITZGERALD, RH ;
HARRIS, WH ;
POSS, R ;
MULLER, ME ;
SLEDGE, CB .
JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME, 1990, 72A (02) :161-168
[8]  
KRISMER M, 1994, INT ORTHOP, V18, P23
[9]   UNCOATED POLYETHYLENE RM ACETABULAR COMPONENT VERSUS MULLER CEMENTED ACETABULAR COMPONENT - A 4-YEAR TO 8-YEAR FOLLOW-UP-STUDY [J].
KRISMER, M ;
FISCHER, M ;
KLESTIL, T ;
FRISCHHUT, B .
ARCHIVES OF ORTHOPAEDIC AND TRAUMA SURGERY, 1991, 110 (04) :195-199
[10]   MECHANICAL LOOSENING OF TOTAL HIP PROSTHESES - A RADIOGRAPHIC AND ROENTGEN STEREOPHOTOGRAMMETRIC STUDY [J].
MJOBERG, B ;
SELVIK, G ;
HANSSON, LI ;
ROSENQVIST, R ;
ONNERFALT, R .
JOURNAL OF BONE AND JOINT SURGERY-BRITISH VOLUME, 1986, 68 (05) :770-774