A ten-year follow-up of one hundred consecutive Müller curved-stem total hip-replacement arthroplasties.

Sutherland, Charles J.; Wilde, Alan H.; Borden, Lester S.; Marks, Kenneth E.

doi:10.2106/00004623-198264070-00002

Cited by 569 publications

(202 citation statements)

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“…The mechanical fixation of a current generation of cementless total hip prostheses in young patients is quite encouraging [3,4,6,24,25,[34][35][36]. We showed in our study that this hip system had no mechanical failure (0 % at 12.4 years) despite a high patient activity level.…”

Section: Discussionsupporting

confidence: 51%

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A randomised prospective evaluation of ceramic-on-ceramic and ceramic-on-highly cross-linked polyethylene bearings in the same patients with primary cementless total hip arthroplasty

Kim

Park

Kulkarni

et al. 2013

International Orthopaedics (SICOT)

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Purpose Very few studies have compared alumina-onalumina ceramic and alumina-on-highly cross-linked polyethylene bearings in the same patient. The purpose of this prospective randomised study was to compare the clinical and radiographic results and the prevalence of osteolysis in cementless total hip arthroplasty using an alumina-on-alumina and alumina-on-highly cross-linked polyethylene bearings in young active patients. Methods We prospectively compared the results of 100 patients (200 hips) who had undergone a cementless total hip arthroplasty with an alumina-on-alumina ceramic bearing in one hip and an alumina-on-highly cross-linked polyethylene in the other. There were 66 men and 34 women with a mean age of 45.3 years (range, 21-49 years) at the time of surgery. The mean follow-up was 12.4 years (range, 11-13 years). The patients were assessed clinically and radiographically at three months, one year, and annually thereafter. Results Harris hip, Western Ontario and McMaster Universities Osteoarthritis Index, and University of California, Los Angeles activity scores did not show statistically significant differences between the two groups of bearings preoperatively or at the time of final follow-up. Radiographic findings of the component were not significantly different between the two groups. The mean polyethylene linear penetration was 0.031±0.004 mm per year. No hips in either group displayed osteolysis. The Kaplan-Meier survivorship with revision as the end point at 12.4 years was 100 % (95 % confidence interval [CI], 94-100 %) for the femoral component in both groups and 99 % (95 %CI, 93-100 %) for the acetabular component. Conclusion The clinical and radiographic results of using an alumina-on-alumina ceramic and alumina-on-highly crosslinked polyethylene bearings were similar.

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Section: Discussionsupporting

confidence: 51%

“…Definite loosening of the acetabular component was diagnosed when there was a change in the position of the component (greater than two millimetres vertically [25] and/or medially or laterally) or a continuous radiolucent line wider than two millimetres on both the anteroposterior and the lateral radiographs [25].…”

Section: Methodsmentioning

confidence: 99%

A randomised prospective evaluation of ceramic-on-ceramic and ceramic-on-highly cross-linked polyethylene bearings in the same patients with primary cementless total hip arthroplasty

Kim

Park

Kulkarni

et al. 2013

International Orthopaedics (SICOT)

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“…It has been reported as significantly better than conventional radiographs measured visually, where the accuracy is only 2.5-5 mm [25,34,38]. The accuracy of EBRA is also the closest to the gold standard Roentgen stereophotogrammetry method [3,33].…”

Section: Resultsmentioning

confidence: 99%

Mid-term results and migration behaviour of a ti-alloy cemented stem

Meek

Michos

Grigoris

et al. 2002

International Orthopaedics

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Between 1991 and 1994, 147 patients (154 hips) underwent a primary cemented total hip replacement using the Ultima ti-alloy, collarless, double-tapered stem and a UHMWPE cup. The average age at operation was 66.4 years. Ninety-one patients (97 hips) were available for review with an average follow-up of 76 months. The Harris hip score had improved from pre-operative average of 43.1 (12.5-65.0) to the latest score of 88.9 (67.5-100). There were 11 revisions in total, eight of which were for aseptic stem loosening. The results of Kaplan-Meier survival analysis, based on stem revision for aseptic loosening as an end-point, was 92% at 8 years. Early stem migration analysis at 2 years was possible in 114 cases using digitised radiographs analysed by the EBRA method. Sixty-three stems had not migrated and 35 migrated less than 2 mm with only one of these ending in failure. Sixteen stems showed early migration of more than 2 mm and five of these failed. Early stem migration is predictive of stem failure. Osteolytic lesions occurred in 12 femurs and four of these stems failed.Résumé Entre 1991 et 1994, 147 malades (154 hanches) ont subi une arthroplastie primaire cimentée qui utilise une tige à section décroissante Ultima sans collerette en alliage de Titane et une cupule de UHMWPE. L'âge moyen à l'opération était 66.4 ans. Quatre-vingtonze malades (97 hanches) étaient disponibles pour la révision avec une moyenne de suivi de 76 mois. Le score de Harris s'est amélioré de la moyenne préopératoire de 43.1 (12.5 à 65.0) au score le plus tardif de 88.9 (67.5 à 100). Il y avait 11 révisions, huit pour descellement aseptique de la tige. La survie selon KaplanMeyer, basée sur la révision de la tige pour descellement aseptique était 92% à huit années. L'analyse du descellement précoce de la tige à deux années était possible dans 114 cas utilisant des radiographies digitalisées analysées par la méthode EBRA. Soixante-trois tiges n'avaient pas migré et trente-cinq tiges avaient migré de moins de 2 mm avec seul cas évoluant vers un échec. Seize tiges ont montré une migration de plus de 2 mm avec finalement cinq échecs. La migration préco-ce de la tige est prédictif du descellement. Les lésions ostéolytique se sont produites sur 12 fémurs conduisant à quatre échecs par descellement fémoral.

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“…Also, the loosening rates of non-cemented total hip prostheses are similar [7,21,22,24]. However, the results of other studies differ; e.g.…”

Section: Discussionmentioning

confidence: 93%

Proximal cement fixation in total hip arthroplasty—first results with a new stem design

Einsiedel

Gebhard

Bregolato

et al. 2007

International Orthopaedics (SICO

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A ten-year follow-up of one hundred consecutive Müller curved-stem total hip-replacement arthroplasties.

Cited by 569 publications

References 0 publications

A randomised prospective evaluation of ceramic-on-ceramic and ceramic-on-highly cross-linked polyethylene bearings in the same patients with primary cementless total hip arthroplasty

A randomised prospective evaluation of ceramic-on-ceramic and ceramic-on-highly cross-linked polyethylene bearings in the same patients with primary cementless total hip arthroplasty

Mid-term results and migration behaviour of a ti-alloy cemented stem

Proximal cement fixation in total hip arthroplasty—first results with a new stem design

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