Inger Mechlenburg

Precision of novel radiological methods in relation to resurfacing humeral head implants: assessment by radiostereometric analysis, DXA, and geometrical analysis

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Precision of novel radiological methods in relation to resurfacing humeral head implants : assessment by radiostereometric analysis, DXA, and geometrical analysis. / Stilling, Maiken; Mechlenburg, Inger; Amstrup, Anders; Soballe, Kjeld; Klebe, Thomas.

I: Archives of Orthopaedic and Trauma Surgery, Bind 132, Nr. 11, 2012, s. 1521-1530.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

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@article{79c3f61981f4429990bb0869343c0d94,
title = "Precision of novel radiological methods in relation to resurfacing humeral head implants: assessment by radiostereometric analysis, DXA, and geometrical analysis",
abstract = "BACKGROUND: Resurfacing humeral head implants (RHHI) are used to preserve bone stock and restore normal anatomy in the osteoarthritic shoulder joint. The purpose of this study was: (1) to describe the use of novel radiological methods in relation to evaluation of RHHI; (2) to estimate the precision of these methods; and (3) to present preliminary clinical and radiological results at 6 months follow-up after Copeland and Global Cap RHHI. METHODS: Twenty-one patients (10 females) at a mean age of 64 (39-82) years and with shoulder osteoarthritis were randomized to a Copeland (n = 11) or Global C.A.P (n = 10) RHHI. Migration of the RHHI was analyzed with radiostereometric analysis (RSA), and bone mineral density (BMD) was measured with dual energy X-ray absorptiometry (DXA). The length of gleno-humeral offset (LGHO) was measured on radiographs. The patients were followed clinically with questionnaires. RESULTS: Precision of the radiological methods was high for the LGHO and acceptable for RSA and for DXA. At 6 months, shoulder function had improved significantly for both RHHI groups. LGHO increased significantly for the Copeland RHHI and was slightly reduced for the Global C.A.P. RHHI. The implant migration and BMD change around the implant from baseline until 6 months follow-up was comparable for both RHHI. CONCLUSION: Radiostereometric analysis and DXA can be used for evaluation of RHHI, but expectedly with a lower precision as compared to standards of TKA or THA. Geometric analysis of the prosthetic shoulder is precise. We interpret that the early radiological and clinical results of the two RHHI are comparable.",
author = "Maiken Stilling and Inger Mechlenburg and Anders Amstrup and Kjeld Soballe and Thomas Klebe",
year = "2012",
doi = "10.1007/s00402-012-1580-x",
language = "English",
volume = "132",
pages = "1521--1530",
journal = "Archives of Orthopaedic and Trauma Surgery",
issn = "0936-8051",
publisher = "Springer",
number = "11",

}

RIS

TY - JOUR

T1 - Precision of novel radiological methods in relation to resurfacing humeral head implants

T2 - assessment by radiostereometric analysis, DXA, and geometrical analysis

AU - Stilling, Maiken

AU - Mechlenburg, Inger

AU - Amstrup, Anders

AU - Soballe, Kjeld

AU - Klebe, Thomas

PY - 2012

Y1 - 2012

N2 - BACKGROUND: Resurfacing humeral head implants (RHHI) are used to preserve bone stock and restore normal anatomy in the osteoarthritic shoulder joint. The purpose of this study was: (1) to describe the use of novel radiological methods in relation to evaluation of RHHI; (2) to estimate the precision of these methods; and (3) to present preliminary clinical and radiological results at 6 months follow-up after Copeland and Global Cap RHHI. METHODS: Twenty-one patients (10 females) at a mean age of 64 (39-82) years and with shoulder osteoarthritis were randomized to a Copeland (n = 11) or Global C.A.P (n = 10) RHHI. Migration of the RHHI was analyzed with radiostereometric analysis (RSA), and bone mineral density (BMD) was measured with dual energy X-ray absorptiometry (DXA). The length of gleno-humeral offset (LGHO) was measured on radiographs. The patients were followed clinically with questionnaires. RESULTS: Precision of the radiological methods was high for the LGHO and acceptable for RSA and for DXA. At 6 months, shoulder function had improved significantly for both RHHI groups. LGHO increased significantly for the Copeland RHHI and was slightly reduced for the Global C.A.P. RHHI. The implant migration and BMD change around the implant from baseline until 6 months follow-up was comparable for both RHHI. CONCLUSION: Radiostereometric analysis and DXA can be used for evaluation of RHHI, but expectedly with a lower precision as compared to standards of TKA or THA. Geometric analysis of the prosthetic shoulder is precise. We interpret that the early radiological and clinical results of the two RHHI are comparable.

AB - BACKGROUND: Resurfacing humeral head implants (RHHI) are used to preserve bone stock and restore normal anatomy in the osteoarthritic shoulder joint. The purpose of this study was: (1) to describe the use of novel radiological methods in relation to evaluation of RHHI; (2) to estimate the precision of these methods; and (3) to present preliminary clinical and radiological results at 6 months follow-up after Copeland and Global Cap RHHI. METHODS: Twenty-one patients (10 females) at a mean age of 64 (39-82) years and with shoulder osteoarthritis were randomized to a Copeland (n = 11) or Global C.A.P (n = 10) RHHI. Migration of the RHHI was analyzed with radiostereometric analysis (RSA), and bone mineral density (BMD) was measured with dual energy X-ray absorptiometry (DXA). The length of gleno-humeral offset (LGHO) was measured on radiographs. The patients were followed clinically with questionnaires. RESULTS: Precision of the radiological methods was high for the LGHO and acceptable for RSA and for DXA. At 6 months, shoulder function had improved significantly for both RHHI groups. LGHO increased significantly for the Copeland RHHI and was slightly reduced for the Global C.A.P. RHHI. The implant migration and BMD change around the implant from baseline until 6 months follow-up was comparable for both RHHI. CONCLUSION: Radiostereometric analysis and DXA can be used for evaluation of RHHI, but expectedly with a lower precision as compared to standards of TKA or THA. Geometric analysis of the prosthetic shoulder is precise. We interpret that the early radiological and clinical results of the two RHHI are comparable.

U2 - 10.1007/s00402-012-1580-x

DO - 10.1007/s00402-012-1580-x

M3 - Journal article

C2 - 22773108

VL - 132

SP - 1521

EP - 1530

JO - Archives of Orthopaedic and Trauma Surgery

JF - Archives of Orthopaedic and Trauma Surgery

SN - 0936-8051

IS - 11

ER -