Eleven-year results of the ABG I hip replacement

Kim, W. Y.; Muddu, B.N.

doi:10.1007/s00264-006-0075-1

Cited by 13 publications

(16 citation statements)

References 12 publications

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“…Our low incidence of combined Brooker grades 3 and 4 (11%) compares favourably with some recent studies, including a multicentre study by the ABG Group [25] where hydroxyapatite-coated implants have been used. The limitations of this study were a lack of lateral radiographic analysis and not establishing the difference between the wear rates among the metal and the ceramic heads.…”

Section: Discussionsupporting

confidence: 66%

The Bicontact cementless primary total hip arthroplasty: long-term results

Swamy

Pace

Quah

et al. 2010

International Orthopaedics (SICOT)

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We report on a prospective series of 201 primary uncemented total hip arthroplasties with a Bicontact prosthesis at a mean follow-up of 12.9 years. The mean Harris hip score improved from 41 before surgery to 89 at final follow-up. Two femoral stems, one each for infection and fracture, and 12 cups were revised. The mean number of years to revision post-primary surgery was 8.7 years (six months to 16 years). The cumulative survival of the prosthesis was 95.42% for any cause at ten years and 93.57% at 12 years. Survivorship for aseptic loosening of the femoral stem was 100%. In our series, the Bicontact uncemented total hip arthroplasty stem without hydroxyapatite coating showed excellent survival and the cup survival was comparable to other leading series.

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Section: Discussionsupporting

confidence: 66%

The Bicontact cementless primary total hip arthroplasty: long-term results

Swamy

Pace

Quah

et al. 2010

International Orthopaedics (SICOT)

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“…On the other hand, the main limitation of our study is that it is based on an implant especially prone to rapid wear and the initiation of OL. The overall 12-year survival for ABG I prostheses, found in our previous study, was 55% [10], which is in agreement with several studies [39][40][41][42] but contrasts with others [11,43,44]. The reasons for the disparity are still not clear, but this issue is discussed elsewhere [10].…”

Section: Discussionsupporting

confidence: 62%

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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“…The main reason for failure was periprosthetic OL around the stable THA. On the one hand, this conclusion is close to studies reporting outcomes after a minimum of ten-year follow-up with the same implant 13,14 . On the other hand, other centres have provided signifi cantly better data [15][16][17] .…”

Section: Discussionsupporting

confidence: 55%

“…Unfortunately, these fi gures are in marked contrast to ours. Other authors similarly report disappointing outcomes with the ABG I prosthesis 13,14 . Advocates of national arthroplasty registries argue that register-reported warnings should contribute to monitoring the behaviour of new prostheses.…”

Section: Discussionmentioning

confidence: 91%

Poor Survival of Abg I Hip Prosthesis in Younger Patients

Gallo¹,

Langová²,

Havranek³

et al. 2008

Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub

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Background: Hydroxyapatite coated (HAC) hip implants have been used in clinical practice for more than two decades. However, the majority of studies have reported only intermediate term outcomes that are not reliable for predicting long-term behavior in all implants. The aim of this study was to determine the performance of HAC total hip arthroplasty in younger patients over a 10-year follow-up period. Methods and Results:This was an observational retrospective study of a 137 consecutive hips with the ABG I prosthesis. Of these, 128 were available for the last investigation. Median duration of follow-up was 10.9 years. The mean age at time of index surgery was 46±6.7 years. Probability of implant survival was estimated using the Kaplan-Meier method. The overall 12-year cumulative survival was 0.55 (95% CI, 0.443-0.659). Periprosthetic osteolysis (57 %) was the most frequent reason for failure followed by aseptic loosening (28 %). When only aseptic loosening was included in the analysis, the same fi gures for cup and stem were 0.873 (95% CI, 0.808-0.938) and 0.992 (95% CI, 0.976-1.0), respectively. Patients with a smaller cup size were those at high risk for revision due to wear-related complications (odds ratio, OR=4.3; 95% CI, 1.734-10.555).Conclusion: This study reports one of the poorest 12-year survivorship data for cementless acetabular component in the literature. The main reason for premature failure was osteolysis, strongly related to high wear rate of polyethylene.

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Eleven-year results of the ABG I hip replacement

Cited by 13 publications

References 12 publications

The Bicontact cementless primary total hip arthroplasty: long-term results

The Bicontact cementless primary total hip arthroplasty: long-term results

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

Poor Survival of Abg I Hip Prosthesis in Younger Patients

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