Uncemented Ceramic-on-Ceramic Bearing Couple for Dysplastic Osteoarthritis: A 5- to 11-Year Follow-up Study

Kusaba, Atsushi; Sunami, Hiroshi; Kondo, Saiji; Kuroki, Yoshio

doi:10.1053/j.sart.2011.09.005

Cited by 4 publications

(3 citation statements)

References 32 publications

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“…Because of the shape and structural property, the recommended alignment of SMF TM is varus at least for primary osteoarthritis [7]. Dysplastic hips often have dysplastic femurs [8]. Therefore, a question comes if the recommended alignment above is also true in the dysplastic hips.…”

Section: A Radiographic Evaluation Of Short Monolithic Femoral Hip St...mentioning

confidence: 99%

“…hidden by the medial part of the neck when the osteotomy is performed just below the capital. This may disturb the procedure to set the cup in the anatomical (i.e., lower and more medial than the sub-dislocated alignment) in dysplastic acetabulum [8]. In dysplastic hips, we often encounter the excessive anterior-torsion of the neck (Figure 3(B)) [24].…”

Section: Varusmentioning

confidence: 99%

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A Radiographic Evaluation of Short Monolithic Femoral Hip Stem (SMF) for Dysplastic Osteoarthritis: Does Stem Alignment Influence on the Stability?

Kikuchi¹,

Sunami²,

Oka³

et al. 2023

OJO

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Background: There have been a few reports of SMF TM stem for dysplastic hips. The aim of this study is to evaluate the influence of stem alignment in dysplastic femurs on the stability of the implants and on the bone reaction by means of consecutive radiographical analysis. Methods: The preoperative diagnosis is dysplastic osteoarthritis in all patients. Twenty-nine hips in 28 patients after MIS-THA were followed up for two or more years (3.5 years in average). The average age at the surgery was 60. Those who belonged to Crowe's classification I were 19 and those of II were 10 hips. The shape of the femur was classified as Dorr's Type A in 5, B in 21, and C in 3 hips. Results: The varus alignment of the stem was 21 hips and non-varus was 8 hips. Crowe's Grade did not have influence on the stem alignment. The ratio of non-varus alignment was more with Dorr's Type C than with others. Achieving rate of mediolateral fixation was significantly higher in the varus alignment than in non-varus. The significant subsidence occurred in 3 hips (10.3%) although all stems became stable within 6 months. No revision was necessary. Conclusion: The varus insertion of the stem seemed more secure also in dysplastic femurs, but even non-varus ones seemed acceptable as they brought about no severe problem. Comprehensively evaluating the result, careful selection of the patient is essential to take the advantage of and to overcome the disadvantage of this short stem for dysplastic hips.

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Section: A Radiographic Evaluation Of Short Monolithic Femoral Hip St...mentioning

confidence: 99%

Section: Varusmentioning

confidence: 99%

A Radiographic Evaluation of Short Monolithic Femoral Hip Stem (SMF) for Dysplastic Osteoarthritis: Does Stem Alignment Influence on the Stability?

Kikuchi¹,

Sunami²,

Oka³

et al. 2023

OJO

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“…The reported survival rates at 5 years ranged from 98.3% [37] to 100% [45] and at 10 years from 83.9% [7] to 100% [45] (Table 2). Of the three prospective comparative studies (Level I or II) that were retrieved, one found the ceramic-on-ceramic (CoC) and control hard-on-polyethylene THA had comparable survivorship, whereas two found the CoC had greater survivorship.…”

Section: Alternative Bearings: Metal-on-metalmentioning

confidence: 99%

How Have Alternative Bearings and Modularity Affected Revision Rates in Total Hip Arthroplasty?

Mihalko

Wimmer

Pacione

et al. 2014

Clin Orthop Relat Res

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Background Total hip arthroplasty (THA) continues to be one of the most successful surgical procedures in the medical field. However, over the last two decades, the use of modularity and alternative bearings in THA has become routine. Given the known problems associated with hardon-hard bearing couples, including taper failures with more modular stem designs, local and systemic effects from metal-on-metal bearings, and fractures with ceramic-onceramic bearings, it is not known whether in aggregate the survivorship of these implants is better or worse than the metal-on-polyethylene bearings that they sought to replace. Questions/purposes Have alternative bearings (metal-onmetal and ceramic-on-ceramic) and implant modularity decreased revision rates of primary THAs?Methods In this systematic review of MEDLINE and EMBASE, we used several Boolean search strings for each topic and surveyed national registry data from Englishspeaking countries. Clinical research (Level IV or higher) with C 5 years of followup was included; retrieval studies and case reports were excluded. We included registry data at C 7 years followup. A total of 32 studies (and five registry reports) on metal-on-metal, 19 studies (and five registry reports) on ceramic-on-ceramic, and 20 studies (and one registry report) on modular stem designs met inclusion criteria and were evaluated in detail. Insufficient data were available on metal-on-ceramic and ceramic-onmetal implants, and monoblock acetabular designs were evaluated in another recent systematic review so these were not evaluated here.One of the authors (WMM) receives royalty payments, during the study period, an amount of USD 10,000 to USD 100,000 from B Braun/Aesculap Inc (Center Valley, PA, USA) and less than USD 10,000 from Elsevier Inc (Philadelphia, PA, USA); receives USD 10,000 to USD 100,000 as a consultant for B Braun/Aesculap Inc and less than USD 10,000 from Medtronic Inc (Memphis, TN, USA); receives research funding, during the study period, an amount of less than USD 10,000 from B Braun/Aesculap Inc and less than USD 10,000 Stryker Inc (Mahwah, NJ, USA); and serves on the editorial boards for the Journal of Arthroplasty, The Knee, the International Journal of Orthopaedics, and The Journal of Long Term Effects of Medical Implants. One of the authors (MAW) receives institutional funding in the amount of less than USD 10,000 from Biomet, Inc (Warsaw, IN, USA), USD 10,000 to USD 100,000 from CeramTec GmbH (Lauf, Germany), and material support from Zimmer Inc (Warsaw, Inc, USA) and B Braun/Aesculap AG. He is an unpaid consultant for Endolab GmbH and a paid consultant receiving an amount of less than USD 10,000 from Irwing Fritche Urquhart & Moore LLC (New Orleans, LA, USA). One of the authors (MPL) owns Zimmer Holdings, Inc stock but received no payments during the study period. Results There was no evidence in the literature that alternative bearings (either metal-on-metal or ceramic-onceramic) in THA have decreased revision rates. Registry data, however, showed that large he...

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Clinical Management of Hip Arthroplasty

Kiefer¹,

Usbeck²,

Scheuber³

et al. 2015

Clinical Management of Hip Arthroplasty

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Uncemented Ceramic-on-Ceramic Bearing Couple for Dysplastic Osteoarthritis: A 5- to 11-Year Follow-up Study

Cited by 4 publications

References 32 publications

A Radiographic Evaluation of Short Monolithic Femoral Hip Stem (SMF) for Dysplastic Osteoarthritis: Does Stem Alignment Influence on the Stability?

A Radiographic Evaluation of Short Monolithic Femoral Hip Stem (SMF) for Dysplastic Osteoarthritis: Does Stem Alignment Influence on the Stability?

How Have Alternative Bearings and Modularity Affected Revision Rates in Total Hip Arthroplasty?

Clinical Management of Hip Arthroplasty

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