Radiolucent lines and osteolysis along tapered straight cementless titanium hip stems: A comparison of 6-year and 10-year follow-up results in 95 patients

Zweymüller, K.; Schwarzinger, U.; Steindl, Martin

doi:10.1080/17453670610013150

Cited by 56 publications

(48 citation statements)

References 17 publications

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“…The first studies available by 2006 mainly dealt with the Sikomet metal-on-metal bearing. All in all, data of about 2,000 primary cases were published [7,[12][13][14], roughly half of which concerned the Sikomet bearing, which has meanwhile been withdrawn from the market. If the data concerning the Sikomet issue are excluded, the data available confirm good results.…”

Section: Discussionmentioning

confidence: 99%

The outcome of the cementless tapered SL-Plus stem: an analysis of arthroplasty register data

Labek

Kovač

Levašič

et al. 2011

International Orthopaedics (SICOT)

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Purpose The aim of this study is to evaluate the outcome of the cementless SL-Plus stem in worldwide arthroplasty register datasets. Methods A structured analysis was conducted the registered data about the SL-Plus stem manufactured by Smith&Nephew including published data from Australia as well as previously unpublished datasets from the Registers of Lombardia, Italy and Valdoltra, Slovenia. A total of 75% of the data analysed had not been published so far. The primary outcome measure was the revision rate, calculated in revisions per 100 observed component years. We evaluated a total of 10,684 primary and 122 revision surgeries with an average follow-up period of four years. Results All datasets showed good and reproducible results for treatment with the SL-Plus stem. An average of 0.31 revisions per 100 observed component years had been reported, which is considerably below the worldwide average (1.29) found for total hip arthroplasty independent of the product. The results of a large centre did not essentially deviate from the revision rates in Lombardia, where the numbers of cases per department are relatively low on average.Conclusions There were no indications for product defects or relevant errors in application. The SL-Plus stem can be considered a high-quality product that ensures good results also in the hands of less experienced surgeons. Data from even young registers can substantially contribute to the assessment of implants, even with the short follow-up periods. These datasets particularly allow for valid assessment of safety issues and can therefore make an essential contribution to the solution of problems of current relevance.

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Section: Discussionmentioning

confidence: 99%

The outcome of the cementless tapered SL-Plus stem: an analysis of arthroplasty register data

Labek

Kovač

Levašič

et al. 2011

International Orthopaedics (SICOT)

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“…When a radiolucent line was present or became apparent in any zone, its progression was assessed over the entire study period. For the semiquantitative data analyses, radiolucent lines involving 50% or more of the respective zones were considered nonosseointegrated zones [24]. The number of implant contact zones were counted and compared between Time 0 and 12 months.…”

Section: Signs Of Osseointegrationmentioning

confidence: 99%

Radiographic Evaluation of Bone Adaptation Adjacent to Percutaneous Osseointegrated Prostheses in a Sheep Model

Jeyapalina

Beck

Bachus

et al. 2014

Clinical Orthopaedics &Amp; Related Research

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Background Percutaneous osseointegrated prostheses (POPs) are being investigated as an alternative to conventional socket suspension and require a radiographic followup in translational studies to confirm that design objectives are being met. Questions/purposes In this 12-month animal study, we determined (1) radiographic signs of osseointegration and (2) radiographic signs of periprosthetic bone hypertrophy and resorption (adaptation) and (3) confirmed them with the histologic evidence of host bone osseointegration and adaptation around a novel, distally porous-coated titanium POP with a collar. Methods A POP device was designed to fit the right metacarpal bone of sheep. Amputation and implantation surgeries (n = 14) were performed, and plane-film radiographs were collected quarterly for 12 months. Radiographs were assessed for osseointegration (fixation) and bone adaptation (resorption and hypertrophy). The cortical wall and medullary canal widths were used to compute the cortical index and expressed as a percentage. Based on the cortical index changes and histologic evaluations, bone adaptation was quantified. Results Radiographic data showed signs of osseointegration including those with incomplete seating against the collar attachment. Cortical index data indicated distal cortical wall thinning if the collar was not seated distally. When implants were bound proximally, bone resorbed distally and the diaphyseal cortex hypertrophied. Conclusions Histopathologic evidence and cortical index measurements confirmed the radiographic indications of adaptation and osseointegration. Distal bone loading,

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“…Bu oranlar zone 1 için %58.8, zone 7 için ise %55.8 olarak tespit edildi. Zweymüller, [13] altı yıl takip ettiği hastalarda femoral stemlerde, 95 stemin 45'inde (%42) radyolusen hatları tespit etmiştir. Bu radyolusen hatların %78'i Gruen zone 1 ve 7'de tespit edilmiştir.…”

Section: şEkilunclassified

“…Sonuçta, yazar röntgenografik olarak var olan radyolusensi bulgularının, stem ömrünü tehlikeye atmayacak bulgular olduğunu belirtmiştir. [13] Bizim çalışmamızda da Gruen zone 1 ve zone 7'de yüksek oranda radyolusensi saptandı. Bu durumun hastaların kliniğiyle birlikte değerlendirildiğinde anlamlı bir sonuç ifade etmediği görüldü.…”

Section: şEkilunclassified

Eight-year follow-up of uncemented hydroxyapatite coated hip prosthesis for hip osteoarthritis secondary to developmental hip dysplasia

Sarıkaya¹,

Ataoğlu

Görmeli

et al. 2013

Eklem Hastalik Cerrahisi

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Radiolucent lines and osteolysis along tapered straight cementless titanium hip stems: A comparison of 6-year and 10-year follow-up results in 95 patients

Abstract: The RLs detected at 6 years were virtually unchanged at 10 years. As they did not progress, they would not jeopardize implant stability. However, the osteolyses seen in 3 patients emphasize the importance of follow-up examinations.

Cited by 56 publications

References 17 publications

The outcome of the cementless tapered SL-Plus stem: an analysis of arthroplasty register data

The outcome of the cementless tapered SL-Plus stem: an analysis of arthroplasty register data

Radiographic Evaluation of Bone Adaptation Adjacent to Percutaneous Osseointegrated Prostheses in a Sheep Model

Eight-year follow-up of uncemented hydroxyapatite coated hip prosthesis for hip osteoarthritis secondary to developmental hip dysplasia

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