The Anatomical Graduated Component total knee replacement

Ritter, Merrill A.

doi:10.1302/0301-620x.91b6.21854

Cited by 110 publications

(48 citation statements)

References 31 publications

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“…Others report on the LCS 1 (DePuy Orthopaedics, Inc, Warsaw, IN, USA) [4], cemented AGC [22], uncemented AGC [23], and the Kinematic TM Condylar (Howmedica) [11]. Only two studies report the KS pain scores (Table 7) [22,23]. The average KS pain score in this review was 49, similar to Ritter [22] and Ritter and Meneghini [23], noting average KS pain scores of 47 and 49, respectively ( Table 7).…”

Section: Discussionmentioning

confidence: 63%

“…Sixth, the functional results and activity scores in this study presume the successful survival of the TKA and the absence of any implant-related problems. While we are reporting 20-year survivorship of the PCC TKA, the ACG TKA reportedly has a 20-year survivorship of 97.8% [22]. Similar survivorship may not necessarily apply to other knee arthroplasty systems unless device complications are minimized or eliminated.…”

Section: Discussionmentioning

confidence: 94%

“…Relatively few studies report 20-year followup of TKA [4,11,16,[21][22][23]25]. Three of these studies include the cemented Total Condylar knee design (Howmedica) [16,21,25].…”

Section: Discussionmentioning

confidence: 99%

“…Three of these studies include the cemented Total Condylar knee design (Howmedica) [16,21,25]. Others report on the LCS 1 (DePuy Orthopaedics, Inc, Warsaw, IN, USA) [4], cemented AGC [22], uncemented AGC [23], and the Kinematic TM Condylar (Howmedica) [11]. Only two studies report the KS pain scores (Table 7) [22,23].…”

Section: Discussionmentioning

confidence: 99%

“…The long-term reports of TKA demonstrate prosthetic survival between 85% [25] and 99% [11] 20 years or more after the index arthroplasty [4,6,10,11,16,[21][22][23]25]. These studies give evidence that, with the proper indications, surgical technique, and patient compliance, prosthetic durability may continue well into the third decade after implantation.…”

Section: Introductionmentioning

confidence: 99%

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Pain Relief and Functional Improvement Remain 20 Years After Knee Arthroplasty

Meding

Ritter

et al. 2012

Clinical Orthopaedics &Amp; Related Research

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Background TKA provides demonstrable pain relief and improved health-related quality of life. Yet, a decline in physical function may occur over the long term despite the absence of implant-related problems. Questions/purposes (1) Does pain relief diminish over 20 years after TKA? (2) Does function decline over 20 years in terms of Knee Society function, knee, and walking scores? And (3) Results Pain scores did not diminish over time (average, 49; range, 20-50). Average knee score was 78 (range, 39-97). Function, stair, and walking scores diminished over time. Average function score was 70 (range, 5-100), primarily due to an average stair score of 35 (range, 0-50); average walking score was 37 (range, 10-50). All but two patients (two TKAs) could negotiate stairs; 95 patients (124 TKAs) could walk at least five blocks; three patients (three TKAs) were housebound. Of the 62 patients still living (98 TKAs), the average UCLA activity score was 8.3 (range, 5-10).

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Section: Discussionmentioning

confidence: 63%

Section: Discussionmentioning

confidence: 94%

“…Relatively few studies report 20-year followup of TKA [4,11,16,[21][22][23]25]. Three of these studies include the cemented Total Condylar knee design (Howmedica) [16,21,25].…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Pain Relief and Functional Improvement Remain 20 Years After Knee Arthroplasty

Meding

Ritter

et al. 2012

Clinical Orthopaedics &Amp; Related Research

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A systematic review and meta‐analysis comparing complications following total joint arthroplasty for rheumatoid arthritis versus for osteoarthritis

Ravi¹,

Escott²,

Shah³

et al. 2012

Arthritis & Rheumatism

196

109

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Objective. Most of the evidence regarding complications following total hip arthroplasty (THA) and total knee arthroplasty (TKA) is based on studies of patients with osteoarthritis (OA), with little being known about outcomes in patients with rheumatoid arthritis (RA). The objective of the present study was to review the current evidence regarding rates of THA/TKA complications in RA versus OA.Methods. Data sources used were Medline, EMBase, Cinahl, Web of Science, and reference lists of articles. We included reports published between 1990 and 2011 that described studies of primary total joint arthroplasty of the hip or knee and contained information on outcomes in >200 RA and OA joints. Outcomes of interest included revision, hip dislocation, infection, 90-day mortality, and venous thromboembolic events. Two reviewers independently assessed each study for quality and extracted data. Where appropriate, metaanalysis was performed; if this was not possible, the level of evidence was assessed qualitatively.Results. Forty studies were included in this review. The results indicated that patients with RA are at increased risk of dislocation following THA (adjusted odds ratio 2.16 [95% confidence interval 1.52-3.07]). There was fair evidence to support the notion that risk of infection and risk of early revision following TKA are increased in RA versus OA. There was no evidence of any differences in rates of revision at later time points, 90-day mortality, or rates of venous thromboembolic events following THA or TKA in patients with RA versus OA. RA was explicitly defined in only 3 studies (7.5%), and only 11 studies (27.5%) included adjustment for covariates (e.g., age, sex, and comorbidity).Conclusion. The findings of this literature review and meta-analysis indicate that, compared to patients with OA, patients with RA are at higher risk of dislocation following THA and higher risk of infection following TKA.

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No differences in long‐term clinical outcomes and survival rate of navigation‐assisted versus conventional primary mobile‐bearing total knee arthroplasty: A minimum 10‐year follow‐up

Lee,

Chang,

Cho

et al. 2024

Knee surg. sports traumatol. arthrosc.

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PurposeThis study aimed to compare long‐term clinical and radiographic outcomes and survival rates between navigation‐assisted (NAV) total knee arthroplasty (TKA) and conventional (CON) TKA using a mobile‐bearing insert.MethodsFrom May 2008 to December 2009, 45 and 63 mobile‐bearing TKA patients were enroled in the CON‐ and NAV‐TKA groups with 146.8 months follow‐up, respectively. Clinical outcomes (Western Ontario and McMaster University Osteoarthritis Index and Knee Society Scores), radiographic outcomes (hip‐knee‐ankle [HKA], lateral distal femoral, medial proximal tibial, γ, and δ angles), and survivorship were compared between both groups.ResultsThe number of HKA angle outliers (more than 3 degrees or less than −3 degree) was significantly lower in the NAV‐TKA group (24.4% vs. 9.5%, p = 0.036) than in the CON‐TKA group. However, long‐term clinical outcomes were similar between both groups. The cumulative survival rate (best‐case scenario) was 98.3% in the CON‐TKA group and 97.5% in the NAV‐TKA group, with no significant difference between the groups (p = 0.883).ConclusionLong‐term clinical outcomes and survival rates were similar between the two groups despite fewer outliers of postoperative lower‐limb alignment in the NAV‐TKA group. Excellent survival rates were observed in both groups using mobile‐bearing inserts.Level of EvidenceLevel IV, case series.

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The Anatomical Graduated Component total knee replacement

Cited by 110 publications

References 31 publications

Pain Relief and Functional Improvement Remain 20 Years After Knee Arthroplasty

Pain Relief and Functional Improvement Remain 20 Years After Knee Arthroplasty

A systematic review and meta‐analysis comparing complications following total joint arthroplasty for rheumatoid arthritis versus for osteoarthritis

No differences in long‐term clinical outcomes and survival rate of navigation‐assisted versus conventional primary mobile‐bearing total knee arthroplasty: A minimum 10‐year follow‐up

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