Changes in Proximal Femoral Bone Mineral Density around a Hydroxyapatite-Coated Hip Joint Arthroplasty

Theis, Jean‐Claude; Beadel, G.

doi:10.1177/230949900301100111

Cited by 22 publications

(15 citation statements)

References 10 publications

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“…The evaluation of osteolysis in the different Gruen zones (20) showed a low amount of osteolysis as compared to manual implantation (25,30,31,37,39). It has been shown, however, that the amount of periprosthetic osteolysis is largely dependent on the type and concept of prosthesis used (39,40); with our data we are not in a position to state that robotic milling decreases the amount of osteolysis. A rate of trochanteric ossification of 27.8% is in the range of what is also to be expected after manual implantation (41,42).…”

Section: Discussioncontrasting

confidence: 77%

Results of total hip replacement using the Robodoc surgical assistant system: clinical outcome and evaluation of complications for 97 procedures

Schulz

Seide

Queitsch

et al. 2007

Robotics Computer Surgery

146

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Section: Discussioncontrasting

confidence: 77%

Results of total hip replacement using the Robodoc surgical assistant system: clinical outcome and evaluation of complications for 97 procedures

Schulz

Seide

Queitsch

et al. 2007

Robotics Computer Surgery

146

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“…Most of the remodelling is established at the end of the first post-operative year, when the BMD seems to reach a plateau in all of the areas around the stem [6,9,17,22,24]. The results of our study suggest that this stability appears between the sixth and twelfth months, reflecting the biomechanical response of the bone according to Wolff's law.…”

Section: Discussionmentioning

confidence: 50%

Changes in periprosthetic bone remodelling after redesigning an anatomic cementless stem

Panisello

Canales

Herrero

et al. 2008

International Orthopaedics (SICOT)

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The aim of this prospective cohort study was to determine the densitometric relevance of minor design modifications of a cementless stem designed to improve proximal load transfer. We used a prospective cohort study with densitometric analysis over a five-year period of two groups of patients with primary osteoarthritis. The first group, 56 hips, received the first version of the ABG stem (ABG-I); the second group, 54 hips, had the ABG-II stem. The results obtained with the ABG-I stem showed a decrease of bone density in proximal areas that ranged from 13% to 37%. However, the new design had a decrease of the same areas that ranged from 9% to 23%. These differences were noted at the end of the first post-operative year and remained stable, except in zone 7, where they were progressive. There is little evidence that the modified stem reduces femoral bone density loss.Résumé Nous avons revu de façon rétrospective 68 hanches chez 62 patients présentant une dysplasie acétabulaire et ayant bénéficié d'une ostéotomie péri-acétabulaire. Parmi ces 68 hanches, 33 avaient en préopératoire une rétroversion acétabulaire (groupe rétroversion) et 35 une antéversion (groupe contrôle). Toutes les hanches ont été évaluées selon le score de Harris. L'évaluation radiographique de la rétroversion acétabulaire et du mur postérieur déficient ont été basées sur le signe du croisement et le signe du mur extérieur. Les scores cliniques des deux groupes au suivi final était semblable. Dans le groupe rétroversion, 12 hanches avaient antéversé leur acétabulum en post-opéra-toire le signe du mur postérieur disparaissant, mais celui-ci restant présent dans 21 hanches avec un acétabulum en rétroversion post-opératoire. Parmi les 21 hanches avec acétabulum rétroversé une coxarthrose postérieure s'est développée à 5 ans post-opératoire. Lorsque l'on réalise une correction par ostéotomie pour une hanche dysplasique avec un acétabulum rétroversé, il est important de corriger cette rétroversion de façon à prévenir une coxarthrose secondaire due à la déficience du mur postérieur.

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“…Studies with an uncemented HA-coated prosthesis [19] showed that the BMD was lower in Gruen Zones 1 and 7 and concluded prosthesis design influences periprosthetic bone loss. Similar studies with HA-coated ABG prostheses showed bone density values averaged between 96% and 113.8% for Gruen Zones 1 to 6, and in Zone 7, there was a decline to an average of 72.1% at 24 months [24]. In contrast, one study [17] showed a 40% loss of bone proximally and 49% distally at 7 to 14 years [10].…”

Section: Discussionmentioning

confidence: 74%

Periprosthetic Bone Remodeling after 12 Years Differs in Cemented and Uncemented Hip Arthroplasties

Chandran

Azzabi

Andrews

et al. 2012

Clinical Orthopaedics &Amp; Related Research

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Background Different patterns of stress shielding may lead to differences in periprosthetic bone preservation around cemented and uncemented hips in the long term? Questions/purposes The purpose of this study is to compare the difference in periprosthetic bone density between cemented Charnley total hip and uncemented hydroxyapatite-coated Furlong 1 THAs at a minimum followup of 12 years (mean, 16 years; range, 12-24 years). Methods We studied a cohort of 17 patients who had bilateral THAs with a cemented Charnley THA on one side and an uncemented Furlong 1 hydroxyapatite-coated THA on the other side. At a minimum followup of 12 years, Harris and Oxford hip scores were used to determine the function, and dual-energy x-ray absorptiometry was used to quantify bone mineral density adjacent to the prosthesis.The results of the dual-energy x-ray absorptiometry scan for cemented and uncemented hips were analyzed using paired-sample two-tailed t-tests. To compare the Harris hip scores, a nonparametric Wilcoxon test was used.

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Changes in Proximal Femoral Bone Mineral Density around a Hydroxyapatite-Coated Hip Joint Arthroplasty

Abstract: The initial outcome of uncemented total hip replacement appears to be promising. There was excellent maintenance of bone around the femoral component in all regions other than the calcar and lesser trochanter. Further scans are required to see if these trends continue in the long term.

Cited by 22 publications

References 10 publications

Results of total hip replacement using the Robodoc surgical assistant system: clinical outcome and evaluation of complications for 97 procedures

Results of total hip replacement using the Robodoc surgical assistant system: clinical outcome and evaluation of complications for 97 procedures

Changes in periprosthetic bone remodelling after redesigning an anatomic cementless stem

Periprosthetic Bone Remodeling after 12 Years Differs in Cemented and Uncemented Hip Arthroplasties

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