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Archives of Orthopaedic and Trauma Surgery

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01-07-2011 | Hip Arthroplasty

Digital comparison of planned and implanted stem position in total hip replacement using a program form migration analysis

Authors: Andreas Fottner, Arnd Steinbrück, Patrick Sadoghi, Farhad Mazoochian, Volkmar Jansson

Published in: Archives of Orthopaedic and Trauma Surgery | Issue 7/2011

Abstract

Aim

One main goal in primary total hip replacement is the reconstruction of preoperative biomechanical conditions by adequate implant positioning. Our aim was to compare the planned and effectively implanted stem position in using a program for digital migration measurement.

Patients

We examined 120 cases with this new method based on a modification of the EBRA-FCA program and compared these results to direct plain radiographic methods. In addition, the intra- and inter-observer reliability was determined in 50 cases.

Results

We observed a rate of correct prediction of 80% for the size of the stem. The new method revealed a good correlation (0.95 and 0.64 for the position along the stem axis and 0.84 for the stem angle) to direct plain radiographic methods. Regarding the intraclass correlation coefficient for intra- and inter-observer reliability, the results were superior (0.97 vs. 0.81–0.84 and 0.90 vs. 0.74–0.88) compared with direct plain radiographic methods.

Conclusion

We concluded that the comparison of the planned and implanted stem position using a modified EBRA-FCA method is more reproducible than direct radiographic measurements.

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Title: Digital comparison of planned and implanted stem position in total hip replacement using a program form migration analysis
Authors: Andreas Fottner
Arnd Steinbrück
Patrick Sadoghi
Farhad Mazoochian
Volkmar Jansson
Publication date: 01-07-2011
Publisher: Springer-Verlag
Published in: Archives of Orthopaedic and Trauma Surgery / Issue 7/2011
Print ISSN: 0936-8051
Electronic ISSN: 1434-3916
DOI: https://doi.org/10.1007/s00402-010-1256-3

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Digital comparison of planned and implanted stem position in total hip replacement using a program form migration analysis

Abstract

Aim

Patients

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Aim

Patients

Results

Conclusion

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