Short-Term Results of Hydroxyapatite-Coated Primary Total Hip Arthroplasty

Rossi, P; Sibelli, Piero; Fumero, Sergio; Crua, Emanuela

doi:10.1097/00003086-199501000-00017

Cited by 20 publications

(18 citation statements)

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“…Marketing began in Europe in 1989 and in the Czech Republic in 1993. The first studies on this implant reported excellent early results [12,13]. Therefore, we opted for this prosthesis in younger patients.…”

Section: Prosthesismentioning

confidence: 99%

Risk factors for accelerated polyethylene wear and osteolysis in ABG I total hip arthroplasty

Gallo

Havranek

Zapletalová

2009

International Orthopaedics (SICOT)

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We analysed data from 155 revisions of identical cementless hip prostheses to determine the influence of patient-, implant-and surgery-related factors on the polyethylene wear rate and size of periprosthetic osteolysis (OL). This was calculated by logistic regression analysis. Factors associated with an increased/decreased wear rate included position of the cup relative to Kohler's line, increase in abduction angle of the cup, traumatic and inflammatory arthritis as a primary diagnosis, and patient height. Severe acetabular bone defects were predicted by an increased wear rate (odds ratio, OR=5.782 for wear rate above 200 mm 3 /y), and increased height of the patient (OR= 0.905 per each centimetre). Predictors of severe bone defects in the femur were the increased wear rate (OR=3.479 for wear rate above 200 mm 3 /y) and placement of the cup outside of the true acetabulum (OR=3.292). Variables related to surgical technique were the most predictive of polyethylene wear rate.

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Section: Prosthesismentioning

confidence: 99%

Risk factors for accelerated polyethylene wear and osteolysis in ABG I total hip arthroplasty

Gallo

Havranek

Zapletalová

2009

International Orthopaedics (SICOT)

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“…Excellent results for the cementless ABG I system (Anatomique Benoist Giraud, Howmedica) have been reported by the international multicenter ABG research group, with moderate levels of revision rates and high Harris hip and Merle d'Aubigné scores reported in the literature [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Despite the mostly favorable clinical outcome at early and mid-term follow-up, some authors express concern regarding the high rate of PE wear, reported at 60-100% [12,13,[16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Early Polyethylene Wear and Excessive Acetabular Granuloma in an Uncemented HA-Coated Total Hip Arthroplasty—Midterm Results of a Prospective Study

Ohnsorge

Davis

Maus

et al. 2006

HSS Journal®: The Musculoskeletal Journal of Hospital for Speci

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This is a prospective review of 135 HAcoated ABG I total hip arthroplasty (THA) systems with a mean clinical and radiographic follow-up of 8.5 years. The 5-year survival rate was 85%, but 22% of the patients were dissatisfied. Revision THA was already indicated in 28% of the patients, with 26% indicated for cup loosening. PE wear was detected by x-ray in 42%. Disproportionate substantial wear with an average linear loss of 2.6 mm at the inner rim of the insert was observed in 23% of the cases. The mean annual wear rate was calculated 0.1-0.25 mm/year. Laboratory examination of the retrieved PE revealed polishing, cracks, and subsurface delamination. Radiographic evidence of acetabular cysts were found to be excessive granuloma during surgery. Polarization microscopy revealed debris particles phagocytized by reticuloendothelial cells. Results confirm the general opinion that aseptic osteolysis is a cell-mediated process driven by the presence of particles generated from wear debris. The findings also suggest that the main reasons for the failure of the first-generation ABG hip system were an insufficient locking mechanism and poor PE congruency, and not solely poor PE quality.

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“…To enhance bone integration a hydroxyapatite coating has now been added on to the proximal stem [6,10,11,45]. Subsequently the idea of distal over-reaming combined with proximally anatomic and hydroxyapatite-coated stem was introduced [43,47]. However, the wide varia-tion in the shape and size of the proximal femoral medullary canal makes it impossible in practice to achieve perfect cortical contact between the stem and the endosteal cortical bone [20,28,36].…”

Section: Introductionmentioning

confidence: 99%

The effects of cementless femoral stem shape and proximal surface texture on ’fit-and-fill' characteristics and on bone remodeling

Laine

Puolakka

Moilanen

et al. 2000

International Orthopaedics

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We measured the post-operative radiological "fit and fill" of two different femoral stem designs, one with a straight proximally porous-coated n=50) and the other with a proximally anatomic, hydroxyapatite-coated and distally over-reamed stem (ABG, n=26). A comparison was then made between the clinical and radiological 5-year follow-up data of these two series and also of the bone remodeling changes around the stems. The observed differences in "fit and fill" parameters in the metaphyseal region were minute. However, in the diaphyseal bone the straight stem had substantially more cortical contact. The clinical results were excellent for both groups. Subsidence (>2 mm) was more frequent with the anatomical ABG stems, although the ABG stems had better bone ingrowth in the lower metaphyseal area. The present results indicate that the anatomical design may improve the fit and fill of a femoral stem in the metaphysis. On the other hand, a looser fill of the diaphyseal bone made the stems of this type more susceptible to subsidence. The straight stem with tight diaphyseal fit showed excellent stability, but the good bone ingrowth and remodeling around the distal part of the stem indicates stress transfer through this region and increased stress shielding of the proximal metaphyseal femur.Résumé Nous avons mesuré l'adaptation et le remplissage radiographique postopératoire de deux modèles diffé-rents de tiges fémorales, une tige droite avec la porosité proximale (BI-Metric, n=50) et une tige proximalement anatomique revêtue d'hydroxyapatite avec un surfaçage distal (ABG, n=26). Nous avons comparé les renseignements cliniques et radiographiques de ces deux séries de données résultant d'un suivi de cinq ans. Le remodelage osseux autour des tiges a été pris en compte. Les diffé-rences observées dans les paramètres de l'adaptation et de remplissage dans la région métaphysaire étaient minimales. Par contre dans la région diaphysaire la tige droite faisait montre de plus de contact cortical et ceci d'une manière significative. Les résultats cliniques sur ces deux groupes furent excellents. L'enfoncement (>2 mm.) de tiges anatomiques ABG était plus fréquent. Les résul-tats présentés indiquent que le modèle anatomique pourrait améliorer l'adaptation et le remplissage de la tige fé-morale dans la région de l'os métaphysaire.

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Short-Term Results of Hydroxyapatite-Coated Primary Total Hip Arthroplasty

Cited by 20 publications

References 0 publications

Risk factors for accelerated polyethylene wear and osteolysis in ABG I total hip arthroplasty

Risk factors for accelerated polyethylene wear and osteolysis in ABG I total hip arthroplasty

Early Polyethylene Wear and Excessive Acetabular Granuloma in an Uncemented HA-Coated Total Hip Arthroplasty—Midterm Results of a Prospective Study

The effects of cementless femoral stem shape and proximal surface texture on ’fit-and-fill' characteristics and on bone remodeling

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