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Publications (4)13.28 Total impact

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    ABSTRACT: Bicompartmental osteoarthritis involving the medial tibiofemoral and the patellofemoral compartments is often treated with total knee replacement. Improved implants and surgical techniques have led to renewed interest in bicompartmental arthroplasty. This study evaluates the radiographic and early clinical results of bicompartmental arthroplasty with separate unlinked components implanted with the assistance of a robotic surgical arm. In addition, we examine the amount of bone resected ...
    The Journal of Bone and Joint Surgery 06/2012; 94(SUPP XXV):254. · 5.28 Impact Factor
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    Miranda L Jamieson · Robert D Russell · Stephen J Incavo · Philip C Noble
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    ABSTRACT: High-porosity "cancellous metal" coatings have been introduced to increase the fixation and biologic incorporation of acetabular cups. The strength of initial fixation provided by a cancellous metal cups vs conventional alternatives in the deficient revision acetabulum was investigated. Cancellous, plasma-sprayed, and beaded cups (n = 9) were implanted under controlled conditions into a validated model of the revision acetabulum. The greatest differences were seen in resistance to catastrophic (spin-out) failure that, for the cancellous shell, averaged 1076 ± 265 N, which was 25% greater than the plasma-sprayed implant (859 ± 214 N, P = .04) and 218% greater than the beaded implant (338 ± 123 N, P < .01). The cancellous coating also provided greater resistance to ultimate failure. These results suggest that these new cancellous metal coatings may represent a promising alternative for fixation in revision total hip arthroplasty.
    The Journal of arthroplasty 06/2011; 26(4):644-8. DOI:10.1016/j.arth.2010.05.016 · 2.67 Impact Factor
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    ABSTRACT: The purpose of this study was to determine whether high flexion leads to improved benefits in patient satisfaction, perception, and function after total knee arthroplasty (TKA). Data were collected on 122 primary TKAs. Patients completed a Total Knee Function Questionnaire. Knees were classified as low (≤ 110°), mid (111°-130°), or high flexion (>130°). Correlation between knee flexion and satisfaction was not statistically significant. Increased knee flexion had a significant positive association with achievement of expectations, restoration of a "normal" knee, and functional improvement. In conclusion, although the degree of postoperative knee flexion did not affect patient satisfaction, it did influence fulfillment of expectations, functional ability, and knee perception. This suggests that increased knee flexion, particularly more than 130°, may lead to improved outcomes after TKA.
    The Journal of arthroplasty 02/2011; 26(2):178-86. DOI:10.1016/j.arth.2010.02.008 · 2.67 Impact Factor
  • Miranda Jamieson · Robert Russell BA · Philip Noble
    The Journal of Arthroplasty 04/2010; 25(3). DOI:10.1016/j.arth.2010.01.028 · 2.67 Impact Factor