Reliability of the acetabular teardrop as a landmark

J. E. Robb; L. A. Rymaszewski; H. B. Bentley; P. T. Donnan

doi:10.1007/BF01627982

Reliability of the acetabular teardrop as a landmark

J. E. Robb, L. A. Rymaszewski, H. B. Bentley, P. T. Donnan

Population Health and Genomics

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

This study investigated the effect of tilt and observer reliability on radiographic measurements of the position of a prosthetic acetabular cup in seven dry bone pelves using the teardrop as a landmark. Coronal or sagittal tilt of more than five degrees was easily recognisable and there was effectively no observer variation in the measurements up to this limit. In addition, 90 out of 100 randomly selected antero-posterior pelvic radiographs from an outpatient department were not significantly rotated and 93 demonstrated a clearly defined teardrop. Measurements about the teardrop on routine radiographs are therefore sufficiently accurate to allow assessment of prosthetic position.

Original language	English
Pages (from-to)	181-185
Number of pages	5
Journal	Surgical and Radiologic Anatomy
Volume	13
Issue number	3
DOIs	https://doi.org/10.1007/BF01627982
Publication status	Published - Sept 1991

Keywords

Anatomy
Pelvis
Radiology

ASJC Scopus subject areas

Anatomy
Surgery
Pathology and Forensic Medicine
Radiology Nuclear Medicine and imaging

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10.1007/BF01627982

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abstract = "This study investigated the effect of tilt and observer reliability on radiographic measurements of the position of a prosthetic acetabular cup in seven dry bone pelves using the teardrop as a landmark. Coronal or sagittal tilt of more than five degrees was easily recognisable and there was effectively no observer variation in the measurements up to this limit. In addition, 90 out of 100 randomly selected antero-posterior pelvic radiographs from an outpatient department were not significantly rotated and 93 demonstrated a clearly defined teardrop. Measurements about the teardrop on routine radiographs are therefore sufficiently accurate to allow assessment of prosthetic position.",

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AU - Robb, J. E.

AU - Rymaszewski, L. A.

AU - Bentley, H. B.

AU - Donnan, P. T.

PY - 1991/9

Y1 - 1991/9

N2 - This study investigated the effect of tilt and observer reliability on radiographic measurements of the position of a prosthetic acetabular cup in seven dry bone pelves using the teardrop as a landmark. Coronal or sagittal tilt of more than five degrees was easily recognisable and there was effectively no observer variation in the measurements up to this limit. In addition, 90 out of 100 randomly selected antero-posterior pelvic radiographs from an outpatient department were not significantly rotated and 93 demonstrated a clearly defined teardrop. Measurements about the teardrop on routine radiographs are therefore sufficiently accurate to allow assessment of prosthetic position.

AB - This study investigated the effect of tilt and observer reliability on radiographic measurements of the position of a prosthetic acetabular cup in seven dry bone pelves using the teardrop as a landmark. Coronal or sagittal tilt of more than five degrees was easily recognisable and there was effectively no observer variation in the measurements up to this limit. In addition, 90 out of 100 randomly selected antero-posterior pelvic radiographs from an outpatient department were not significantly rotated and 93 demonstrated a clearly defined teardrop. Measurements about the teardrop on routine radiographs are therefore sufficiently accurate to allow assessment of prosthetic position.

KW - Anatomy

KW - Pelvis

KW - Radiology

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JO - Surgical and Radiologic Anatomy

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ER -

Reliability of the acetabular teardrop as a landmark

Abstract

Keywords

ASJC Scopus subject areas

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