Uncemented Total Knee Arthroplasty: 2-Year Follow-Up of 100 Knees With a Rotating Platform, Cruciate-Retaining Design

Signorelli, Joseph J.; Bernini, Philip M.; Shirreffs, Thomas G.

doi:10.1016/j.arth.2010.01.094

Cited by 9 publications

(5 citation statements)

References 21 publications

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“…Comparing the current study with other studies of the same design ( Table), the current bearing spinout rate of 0.7% was comparable with the 0.56% rate noted in another study, 2 and the finding of no tibial or femoral revisions is comparable with those of Goldstein et al, 3 who had a 40% follow-up, and Signorelli et al, 4 who used cementless fixation.…”

Section: A 5b 5csupporting

confidence: 88%

“…To the authors' knowl-edge, few studies have evaluated the midterm follow-up of a posterior cruciateretaining, rotating-platform TKA. [2][3][4] The strengths of the current study include the single-surgeon, consecutive-case cohort…”

Section: Discussionmentioning

confidence: 99%

“…To the authors' knowledge, few midterm follow-up studies on posterior cruciate-retaining, rotating-platform TKAs exist. [2][3][4] The purpose of the current study was to evaluate the 4-to 6-year followup of a consecutive series of patients who underwent a primary posterior cruciateretaining, rotating-platform TKA fixed with cement. The authors hypothesized that the results of posterior cruciate-retaining, rotating-platform TKA would be comparable to posterior cruciate-substituting TKAs of the same design.…”

mentioning

confidence: 99%

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Posterior Cruciate–retaining, Rotating-platform Total Knee Arthroplasty: Minimum 4-year Follow-up Study

Elwood¹,

Callaghan²,

Liu³

et al. 2012

Orthopedics

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Rotating-platform, mobile-bearing total knee arthroplasty was initially developed using a posterior cruciate-sacrificing technique and design. Posterior cruciate-substituting and -retaining, rotating-platform total knee arthroplasty designs were developed later. The purpose of this study was to evaluate a minimum 4-year follow-up of total knee arthroplasty performed with a posterior cruciate-retaining, rotating-platform design.The 4- to 6-year results of 123 patients undergoing 152 consecutive total knee arthroplasties using a posterior cruciate-retaining, rotating-platform design were evaluated. Patients were evaluated clinically for need for revision, and clinical outcome measures included the pain and functional components of the Knee Society Score, the Western Ontario and McMaster Universities Osteoarthritis Index, the Short Form 36 Health Survey, and the University of California Los Angeles activity-level scores. Radiographs were evaluated for loosening, component positioning changes, femoral-tibial alignment, and osteolysis. One knee was lost to follow-up at an average of 5.2 years. No tibial or femoral components required revision. Three polyethylene liners were revised: 2 for infection and 1 for bearing spinout. Average range of motion was 120° (range, 70°-135°). Minor areas of osteolysis were noted around 4.5% of knees, and minimal incomplete radiolucencies were noted around 50% of components. The posterior cruciate-retaining, rotating-platform knee prosthesis demonstrated excellent survivorship at 4- to 6-year follow-up.

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Section: A 5b 5csupporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Posterior Cruciate–retaining, Rotating-platform Total Knee Arthroplasty: Minimum 4-year Follow-up Study

Elwood¹,

Callaghan²,

Liu³

et al. 2012

Orthopedics

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“…Despite adequate biologic fixation, the outlined failure mechanisms have tainted some orthopedists’ perception of cementless technology. Additionally, early studies on various uncemented tibial components showed a high incidence of radiolucent lines (RLL) of 13%-56.5% [ 6 , 7 ]. Although, the significance of the RLL was unknown, some speculated that RLLs might predispose the implants to early component loosening.…”

Section: Introductionmentioning

confidence: 99%

A Short-Term Multicenter Analysis of Radiolucent Lines in a Single Uncemented Rotating Platform Implant for Total Knee Arthroplasty

et al. 2022

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“…Another study reviewed data on 105 TKAs in 75 patients and found one instance of patella failure due to tendon rupture, requiring surgical repair. 16 Despite such evidence, there is currently a paucity of studies analyzing the patellar outcomes of cementless TKA. To fully assess cementless TKA efficacy, studies still must focus on patella fixation and prevention of patella complications.…”

mentioning

confidence: 99%

Outcomes of Cementless-Backed Patellar Components

et al. 2020

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Because of the early follow-up positive outcomes with cementless fixation, continued evaluations need to be performed to ensure longer-term efficacy. Additionally, although many studies report on the results of femoral and tibial component fixation, few studies report specifically on patellar outcomes. Therefore, the purpose of this study was to report on the: (1) implant survivorship; (2) complications; and (3) radiographic outcomes in a large cohort of patients who received cementless total knee arthroplasties (TKAs), with particular attention to the patellar component. A total of 261 patients who underwent cementless TKA by a single, high-volume academic surgeon were studied. Patients had a mean age of 66 years and were distributed between 192 women (74%) and 69 men. All patients received the same cementless tibial, femoral, and patellar components. Mean follow-up period was 4.5 years (range, 4–5 years). Primary outcomes evaluated included all postoperative complications, with particular emphasis on the patellar component. Only one patellar loosened leading to a patellar aseptic loosening rate of 0.3% (1 of 261). The one patellar loosening was the component being dislodged after a manipulation under anesthesia (MUA) at 6 weeks. This was revised to a cemented component and the patient is doing well 4 years later. A second patient experienced a patellar tendon rupture, later surgically repaired. Another patient sustained a patella fracture that was managed nonoperatively. The fracture healed by 1 year and the patient continued to have an otherwise successful outcome, now at 2 years follow-up. No progressive radiolucencies, subsidence, or changes in initial postoperative axial alignment were observed at final follow-up. The results from this study highlight a 98% success rate at mean 4.5 years follow-up in a large cohort of patients with a diverse spread of demographic details. Specific to the patella, only one patient experienced an adverse event, which was managed nonoperatively. Therefore, based on this data, patellar fixation in cementless TKA can be considered a safe technique.

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Uncemented Total Knee Arthroplasty: 2-Year Follow-Up of 100 Knees With a Rotating Platform, Cruciate-Retaining Design

Cited by 9 publications

References 21 publications

Posterior Cruciate–retaining, Rotating-platform Total Knee Arthroplasty: Minimum 4-year Follow-up Study

Posterior Cruciate–retaining, Rotating-platform Total Knee Arthroplasty: Minimum 4-year Follow-up Study

A Short-Term Multicenter Analysis of Radiolucent Lines in a Single Uncemented Rotating Platform Implant for Total Knee Arthroplasty

Outcomes of Cementless-Backed Patellar Components

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