Two-to Four-Year Results of Posterior Cruciate-Sparing Condylar Total Knee Arthroplasty With an Uncemented Femoral Component

Wright, R. John; Lima, Jéssika Cristina de; Scott, Richard D.; Thornhill, Thomas S.

doi:10.1097/00003086-199011000-00015

Cited by 46 publications

(12 citation statements)

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“…In a study by Campbell et al15), hybrid TKA resulted in significantly low survival rate compared to cemented TKA during a 5-year follow-up period. However, there have been many studies reporting good short-term follow-up results6,7), and the technique produced no significantly different results compared to cemented TKA in a 12.8-year long-term follow-up study16). The survival rate was 95% after hybrid TKA in some studies involving a 15-year follow-up period17-20).…”

Section: Discussionmentioning

confidence: 99%

Long-term Results of Hybrid Total Knee Arthroplasty: Minimum 10-years Follow-up

Choi

Lee

Kim

et al. 2012

Knee Surg Relat Res

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PurposeTo evaluate the survival rate and long term clinical outcomes of hybrid total knee arthroplasty (TKA).Materials and MethodsWe retrospectively analyzed 113 hybrid TKAs (NexGen) in 86 patients that were followed for more than 10 years. Kaplan-Meier survival curves were generated using revision as an end point. Knee Society Score (KSS) and range of motion were evaluated for clinical assessment and plane radiographs were used to evaluate implant problems.ResultsAt 11.2 years (range, 10 to 12.2 years) of follow-up on average, 7 knees required revision. The reason for revision was aseptic loosening in 4 knees (1 in femoral and tibial component and 3 in tibial component only) and infection in 3 knees. The survival rate was 93.8% at 12 years for all knees, and 96.5% when septic loosening was excluded. The KSS improved from 29.3 to 91.5 in the Cruciate-Retaining type (CR) and from 21.5 to 90.3 in the posterior stabilizing type (PS) at latest follow-up. The average range of motion was improved from 120.6° to 133.8° in the CR type and 119.5° to 135.5° in the PS type.ConclusionsHybrid TKA provides good survival rates and clinical results comparable to cemented TKA.

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Section: Discussionmentioning

confidence: 99%

Long-term Results of Hybrid Total Knee Arthroplasty: Minimum 10-years Follow-up

Choi

Lee

Kim

et al. 2012

Knee Surg Relat Res

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“…In initial studies [28,30,49,58], this method showed success rates comparable with those of the cemented femoral Miller-Galante and PFC components; however, the studies relied on short followup and stressed further study was warranted. Campbell et al [6] cited 10 revisions among 65 PFC implants and 84.6% survivorship at 8 years; these findings led them to conclude hybrid fixation should be abandoned.…”

Section: Discussionmentioning

confidence: 99%

“…Cementless fixation with porous coating has largely met with mixed results [8,11,12,13,17,19,20,27,39,40], including a 15-year survival of 72% [13] and greater loosening among uncemented tibial components compared with cemented components [7]. In contrast, short-term studies of hybrid fixation showed promise for this second alternative [23,28,30,49,58]. However, one intermediate-term report [6] of 65 press-fit condylar (PFC) arthroplasties had unacceptable implant survivorship (89% after 5 years, 85% after 8 years) and problems with the femoral component.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Total Knee Arthroplasty

Faris

Keating

Farris

et al. 2008

Clinical Orthopaedics &Amp; Related Research

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A retrospective study of 201 anatomic graduated component total knee arthroplasties implanted with hybrid fixation at the authors' center was performed in response to conflicting data in the literature concerning the benefits of a hybrid method. Selection for hybrid fixation was nonrandomized and based on femoral component fit. Survivorship analysis was performed, and rates of radiolucent lines surrounding the femoral component and occurrence of osteolysis were noted. At 7 and 13 years, survivorship with tibial or femoral revision as the end point was 0.9926 and 0.9732, respectively. Radiolucencies were found adjacent to 15 femoral components at final followup (seven in Zone 1, three in Zone 2, five in Zone 3, one in Zone 4, two in Zone 5, zero in Zone 6). Osteolysis was observed in one knee after secondary evaluation. Hybrid fixation in a selected patient population can result in excellent results in middle to long-term followup.

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“…Designation of the numerical score into a category (such as excellent, good, fair, poor) have frequently been used by authors to report their results. If these categories are assigned narrow intervals, such as 10 points per category (Wright et al 1990, König et al 1997, it is conceivable that a single reading by a single observer may produce an error that spans 2 categories.…”

Section: Discussionmentioning

confidence: 99%