Survivorship of total hip replacements

Dobbs, H. S.

doi:10.1302/0301-620x.62b2.7364829

Cited by 266 publications

(96 citation statements)

References 4 publications

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“…Two of the 28 mm cups showed osteolysis. This difference was statistically not 10. In respect to whether the femoral head was made of metal or ceramic no difference in the occurrence of osteolysis was observed.…”

Section: Resultsmentioning

confidence: 69%

“…Only 1 (not revised) of the 14 cups showing osteolysis was fixed by two additional screws. Cumulative survivorship for this cup type between 12 and 13 years is 0.94 according to Dobbs [10].…”

Section: Resultsmentioning

confidence: 96%

“…The diameters of the cups were measured for the hips by using 32 mm and 28 mm heads. Survivorship analysis for the cup was performed according to Dobbs [10]. Clinical results were calculated using the Harris hip score (HHS).…”

Section: Methodsmentioning

confidence: 99%

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Cementless hemispheric acetabular component in total hip replacement

Weber¹,

Schaper²,

Pomeroy³

et al. 2000

International Orthopaedics

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A series of 198 total hip arthroplasties was performed using a porous-coated, hemispheric press-fit cup. One hundred and twenty-seven cups were available for clinical and radiological examination at mean followup of 10.6 years. The mean age at the index procedure was 61.2 years. The mean Harris hip score at final follow-up was 89.8. Three cups were revised for aseptic loosening and two liners were changed for eccentric wear and pelvic osteolysis. Nine additional patients showed mild or suspected osteolysis. Two cups were rated "fibrous" stable. There was no correlation between additional screw fixation of the press-fit cup and osteolysis or revision.Résumé Nous avons réalisé une étude rétrospective comprenant 127 prothèses totales de la hanche en utilisant une cupule acetabulaire non cimentée. 'Age moyen des patients lors d'intervention était de 61.2 ans. La durée moyenned' observation post-operatoire était de 10.6 ans. Le score de Harris lors du dernier examen clinique était de 89.9. Trois cupules étaient révisées pour descellement aseptique et deux inserts en polyéthylène étaient changés pour usure et ostéolyse. Neuf autres patients montraient une ostéolyse discrète. Deux cupules étaient stables avec une fixation dite «fibreuse». Aucune corré-lation entre utilisation de vis pour la fixation primaire et le développement d'osteolyse n'a été trouvée.

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Section: Resultsmentioning

confidence: 69%

Section: Resultsmentioning

confidence: 96%

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Cementless hemispheric acetabular component in total hip replacement

Weber¹,

Schaper²,

Pomeroy³

et al. 2000

International Orthopaedics

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“…Dobbs introduced the Kaplan-Meier univariate analysis for hip prostheses in 1980, and it has been used ever since to evaluate the survivorship of endoprostheses [2]. It has been regarded as a valid technique for long-term evaluation of joint prostheses, although many patients are lost to follow-up, assumptions on the outcome of lost patients are done, and the interpretations are increasingly uncertain at the tail-end of curves [3,5].…”

Section: Discussionmentioning

confidence: 99%

Periprosthetic fractures in total hip arthroplasty: an epidemiologic study

Sarvilinna

Huhtala

Puolakka

et al. 2003

International Orthopaedics

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This study was based on data from the Finnish Arthroplasty Register. From 1990 to 1999, 33,154 primary hip arthroplasties were performed in Finland. Only periprosthetic fractures treated by a revision arthroplasty were registered. The six most used femoral components were compared using survival analysis and Cox's regression model. The incidence of periprosthetic fractures was calculated separately for the years 1990-1994 and 1995-1999. The incidence in the first period was greater than in the latter. Survival analysis and Cox's regression model showed that gender, prosthesis type and age were of no significance as risk factors for periprosthetic fractures.Résumé Cette étude a été basée sur les données du Registre finlandais des Arthroplasties. De 1990 à 1999 33.154 arthroplasties totales de la hanche ont été exécu-tées en Finlande. Seulement les fractures periprothéti-ques traitées par une arthroplastie de révision ont été enregistrées. Les six composants fémoraux le plus utilisés ont été comparés en utilisant l' analyse de la survie et le modèle de régression de Cox. La fréquence des fractures périprothetiques a été calculée séparément pour les années 1990-1994 et 1995 -1999 et elle était plus élevée dans la première période que dans la deuxième. L'analyse de la survie et le modèle de Cox ont montré que le sexe, le type de prothèse et l'âge n'étaient d'aucune signification comme facteur de risque pour ces fractures péri-protèthiques.

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“…Heterotopic calcifications were observed in 42% of the patients (n = 56) and were described using Brooker's classification [6,8,15]. They reported a discrete calcification without the need for revision (Brooker I or II).…”

Section: Clinical and Radiological Resultsmentioning

confidence: 99%