Total knee replacement using the Genesis II prosthesis: a 5-year follow up study of the first 100 consecutive cases
Section snippets
Materials and methods
Ninety-six consecutive patients with osteoarthritis (100 knees) underwent a primary knee tricompartmental replacement using the Genesis II (Smith and Nephew, Memphis, TN) cemented prosthesis. In four patients, bilateral knee replacements were performed under the same anesthesia.
The average patient age was 67.5 years, with a range from 52 to 94 years. The average patient weight was 90 kg with a range of from 54 to 125 kg. The mean BMI was 30.1 with a range of from 21.5 to 42.7. The pre-operative
Results
At 5 years after surgery, 77% of the patients had no pain with any activities. Twenty-one percent had mild discomfort usually during inclement weather. Two patients had pain on a daily with weight basis, and were on continuous analgesic medications. No patients had either night or rest pain. The clinical and radiographic findings are noted in Table 2.
Seventy-nine percent of the patients could both ascend and descend stairs in a reciprocal manner. All the remaining patients could ascend stairs
Discussion
This study documents the results using a fourth generation implant for total knee replacement of the arthritic knee. The prosthesis had provisions made for retention of the PCL or its sacrifice and use of a posterior stabilized bearing surface. The tibial base plate was asymmetrical so as to match the cut surface of the tibia. The femoral component geometry was such that flexion space filling was obtainable without having to externally rotate the component. The trochlear groove permitted
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Posterior dislocation of a constrained total knee arthroplasty: A case report
2018, Annals of Medicine and SurgeryCitation Excerpt :Standing radiographs showed no abnormalities or any sign of loosening with a normal positioning of the insert (Fig. 4). Knee dislocation after TKA is rare but easily overlooked and can lead to serious complications and permanent disability; hence, it must be addressed early and managed appropriately [2] [3] [4], [7] [8], [9]. There are some symptoms that could alert the surgeon of the possibility of knee dislocation or a problem with the insert, such as pain, clicking, locking sensations, or sudden instability [3].
Total Knee Arthroplasty Using Bicruciate-Stabilized or Posterior-Stabilized Knee Implants Provided Comparable Outcomes at 2 Years: A Prospective, Multicenter, Randomized, Controlled, Clinical Trial of Patient Outcomes
2017, Journal of ArthroplastyCitation Excerpt :Gandhi et al, however, included only 2 RCTs in their analysis. Knee flexion ranges of 113° at 2 years and 118° at 5 years have been reported for the PCS [30–32] and between 116° to as much as 129° for the BCS [7,24,33,34]. In our study, knee flexion was approximately 120° for both implants which was less than the 125° reported by Schimmel et al [24] and the 129° reported by Christen et al [33].
Clinical Results and Survivorship of the GENESIS II Total Knee Arthroplasty at a Minimum of 15 Years
2017, Journal of ArthroplastyCitation Excerpt :At 2 years, Laskin [12] and Karachalios et al [13] reported 100% prosthesis survival. These excellent results remain consistent at 5-year follow-up, with survival data ranging from 96.4% to 100%, published from multiple institutions [6,14,15]. In addition, our current findings are consistent with previously published midterm results from our institution, where Bourne et al reported 96% ± 2% Kaplan-Meier survivorship of the first 100 GENESIS II TKAs at a mean of 11.9 years follow-up [7].
Midterm outcomes of high-flexion total knee arthroplasty on Japanese lifestyle
2016, Acta Orthopaedica et Traumatologica TurcicaCitation Excerpt :First, the study was small and included only 53 patients. The mean age of all patients at the time of operation was 73 years, which is higher than the mean age in Laskin's study (67.5 years)11 and in Bourne's study (68 years).12 In our study, 36 patients were aged >75 years at the time of operation.
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2016, Journal of Arthroplasty