Computed Tomography Assisted Osteodensitometry in Total Hip Arthroplasty

Pandit, Salil; Graydon, Andrew J.; Bradley, Lyndon; Walker, Cameron; Pitto, Rocco P.

doi:10.1111/j.1445-2197.2006.03866.x

Cited by 5 publications

(3 citation statements)

References 25 publications

(42 reference statements)

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“…Unfortunately, since the radiographic changes prompting this study were not anticipated, only plain radiographs were available for this retrospective analysis. Yet the data in this study confirm those of other studies using dual-energy xray absorptiometry [2,27,43] and quantitative CT [5,36,37]. The associated finding of progressive cortical hypertrophy in this study was quantifiable and lends credence to these study results.…”

Section: Discussionsupporting

confidence: 91%

“…Poorer bone quality on either the operated or contralateral side at the time of implantation reportedly correlated with a greater loss of bone density later in a number of other studies of cementless stems [15,29,37]. In one retrieval study of 11 pairs of femurs, one of which had been implanted with an extensively porous-coated stem at an average 5.9 years, women had greater bone loss than men (31.2% versus 12.3%, respectively) [41].…”

Section: Discussionmentioning

confidence: 93%

See 1 more Smart Citation

Late Remodeling Around a Proximally HA-coated Tapered Titanium Femoral Component

Capello

DʼAntonio

Geesink³

et al. 2009

Clinical Orthopaedics &Amp; Related Research

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 93%

Late Remodeling Around a Proximally HA-coated Tapered Titanium Femoral Component

Capello

DʼAntonio

Geesink³

et al. 2009

Clinical Orthopaedics &Amp; Related Research

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“…Osteodenzitometrijom je moguće izmeriti BMD trabekularne i kortikalne kosti u neposrednoj blizini implantata. Kod 23 bolesnika sa 27 ugrađenih bescementnih endoproteza tokom jednogodišnjeg praćenja utvrđeno je veće smanjenje BMD u trabekularnom koštanom tkivu (16,7-28,2%) u odnosu na kortikalno koštano tkivo (5,3-7,8%) 20 . U različitim studijama pokazano je da najveći gubitak BMD postoperativno nastaje u Gruenovim zonama 1 i 7, neposredno lateralno i medijalno pored proksimalne trećine implantata 21 .…”

Section: Merenje Mineralne Gustine Kostiunclassified

Application possibilities of osteodensitometry in detecting and preventing periprosthetic bone resorption following cementless total hip artheroplasty

2008

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<zakljucak> Najcesca komplikacija ugradnje bescementne endoproteze kuka kod bolesnika sa koksartrozom jeste periproteticna osteoresorpcija koja se javlja u toku prvih nedelja i meseci posle ugradnje implantata i koja dovodi do njegovog labavljenja ili periproteticnog preloma butne kosti. Osteodenzitometrijskim merenjem BMD pre ugradnje endoproteze, a zatim kontinuiranim pracenjem promena BMD posle operacije, moguce je otkriti bolesnike koji imaju povecan rizik od razvoja masivne periproteticne osteoresorpcije i pravovremeno preduzeti neophodne mere za obezbedjenje dugotrajne stabilnosti endoproteze, a time i kvaliteta zivota bolesnika sa koksartrozom.

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Quantitative CT-assisted osteodensitometry of femoral adaptive bone remodelling after uncemented total hip arthroplasty

Pitto

Bhargava

Pandit

et al. 2007

International Orthopaedics (SICO

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The aim of this prospective study was to measure bone density changes and to assess adaptive bone remodelling after uncemented total hip arthroplasty with a taper-design femoral component using quantitative computer-tomographyassisted osteodensitometry. This method is able to differentiate cortical and cancellous bone structures. Twenty-seven consecutive patients (29 hips) with degenerative joint disease were enrolled in the study. Serial clinical, radiological and CTosteodensitometry assessments were performed after the index operation. At the 2-year follow-up, the clinical outcome was rated satisfactory in all hips. The radiological assessment showed signs of osteointegration and stable fixation of all cups and stems. We observed a −17% decrease of cortical bone density and −22% decrease of cancellous bone density in the greater trochanter and femoral neck region. Cortical and cancellous bone density decrease at the level of the lesser trochanter was −9% and respectively −4%. We observed small changes of cortical bone density in the diaphyseal regions; in contrast, cancellous bone density increased (range 6% to 27%) in the diaphyseal regions. Overall, a trend of bone density recovery was observed throughout the follow-up period. Periprosthetic bone density changes at the 2-year follow-up are suggestive of stable osteointegration with proximal femoral diaphysis load transfer and moderate metaphyseal stress-shielding.Résumé Le but de cette étude prospective est de mesurer par scanner et ostéodensitométrie la densité osseuse et le remodelage osseux après prothèse non cimentée. Cette méthode permet de différencier les structures osseuses corticales et spongieuses. 27 patients consécutifs (29 hanches) présentant une coxarthrose ont été inclus dans cette étude qui a comporté une analyse radiologique, scanographique et ostéo-densitométrie. Pour toutes les hanches à deux ans de suivi post-opératoire, le devenir clinique de ces patients était satisfaisant. La radiologie montrait des signes d'ostéointégra-tion et de fixation stables dans toutes les cupules et pour toutes les pièces fémorales. Nous avons observé une diminution de 17% de la densité corticale et de 22% de la densité de l'os spongieux au niveau du grand trochanter et au niveau du calcar. Il existe également une diminution de la densité osseuse au niveau du petit trochanter tant sur le plan cortical 9% qu'au niveau de l'os spongieux 4%. Nous avons égale-ment observé de petites modifications de la densité osseuse corticale au niveau de la région diaphysaire, a contrario nous avons également mis en évidence une augmentation de la densité osseuse de l'os spongieux à ce niveau (de 6 à 27%). Ces différentes modifications osseuses nous permettent, à deux ans de suivi post-opératoire, de penser que l'ostéointégration proximale des éléments prothétiques entraîne un transfert de charge et un stress-shielding métaphysaire modéré.

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Computed Tomography Assisted Osteodensitometry in Total Hip Arthroplasty

Abstract: The newly designed tapered stem showed good clinical and radiological outcomes with a proximal femoral bone loss that compares favourably with other studies.

Cited by 5 publications

References 25 publications

Late Remodeling Around a Proximally HA-coated Tapered Titanium Femoral Component

Late Remodeling Around a Proximally HA-coated Tapered Titanium Femoral Component

Application possibilities of osteodensitometry in detecting and preventing periprosthetic bone resorption following cementless total hip artheroplasty

Quantitative CT-assisted osteodensitometry of femoral adaptive bone remodelling after uncemented total hip arthroplasty

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