We present the results of a prospective study on the functional outcome from total knee replacement (TKR) in young versus old patients. American Knee Society and pain scores over ten years post TKR were compared using...We present the results of a prospective study on the functional outcome from total knee replacement (TKR) in young versus old patients. American Knee Society and pain scores over ten years post TKR were compared using a cohort of young patients (≤55 years) and a control group of patients ≥56, matched for ASA, body mass index and preoperative condition. A total of 24 young and 24 older knees were analysed. All scores improved significantly over time. There was no statistical differences over 10 years in pain (p = 0.436) and knee performance (0.618). Overall function was consistently higher in the younger group (p = 0.004). TKR in younger patients produces similar outcomes in terms of pain and function compared with older patients and we feel that TKR should not be withheld on account of age alone.展开更多
The PFC Sigma Cobalt Chrome Sigma (PFCSCC) was introduced in 2006, and represents further development of the PFC Sigma design aiming at reducing the problem of backside wear. To ensure that there were no significant e...The PFC Sigma Cobalt Chrome Sigma (PFCSCC) was introduced in 2006, and represents further development of the PFC Sigma design aiming at reducing the problem of backside wear. To ensure that there were no significant early failures following the introduction of this knee system to our hospital in 2006, we prospectively identified all patients undergoing TKA with the PFCSCC over a one-year period. Clinical and demographic patient data, American Knee Society scores, Oxford Knee scores, SF-12 scores and radiographic data were recorded preoperatively and at three-year post surgery. 233 patients underwent 249 primary knee arthroplasties with the PFCSCC. Seven patients (eight TKAs) died before the last review and eight cases were lost to follow up. Mean age was 66.7 (range 34 - 80) with 47.6% male. Mean follow-up days were 1109 (range 741 to 1591). 5 (2.2%) were revised for infection with 1 revised for pain. The 3-year survival rate was 97.6% and 99.6% for aseptic failure. AKS 46.2 (0 - 95) was preoperatively 88.3 (17 - 100) with 3 years P 0.001. OKS 39.0 (22 - 53) was preoperatively 22.6 (12 - 53) with 3 years P 0.001. 17 of the 219 who had x-rays (8%) had radiolucent zones on x-ray. Our results demonstrate a good early aseptic survivorship of the PFCSCC at three years of 99.6%, combined with a good functional and objective improvement in our patients in three years.展开更多
文摘We present the results of a prospective study on the functional outcome from total knee replacement (TKR) in young versus old patients. American Knee Society and pain scores over ten years post TKR were compared using a cohort of young patients (≤55 years) and a control group of patients ≥56, matched for ASA, body mass index and preoperative condition. A total of 24 young and 24 older knees were analysed. All scores improved significantly over time. There was no statistical differences over 10 years in pain (p = 0.436) and knee performance (0.618). Overall function was consistently higher in the younger group (p = 0.004). TKR in younger patients produces similar outcomes in terms of pain and function compared with older patients and we feel that TKR should not be withheld on account of age alone.
文摘The PFC Sigma Cobalt Chrome Sigma (PFCSCC) was introduced in 2006, and represents further development of the PFC Sigma design aiming at reducing the problem of backside wear. To ensure that there were no significant early failures following the introduction of this knee system to our hospital in 2006, we prospectively identified all patients undergoing TKA with the PFCSCC over a one-year period. Clinical and demographic patient data, American Knee Society scores, Oxford Knee scores, SF-12 scores and radiographic data were recorded preoperatively and at three-year post surgery. 233 patients underwent 249 primary knee arthroplasties with the PFCSCC. Seven patients (eight TKAs) died before the last review and eight cases were lost to follow up. Mean age was 66.7 (range 34 - 80) with 47.6% male. Mean follow-up days were 1109 (range 741 to 1591). 5 (2.2%) were revised for infection with 1 revised for pain. The 3-year survival rate was 97.6% and 99.6% for aseptic failure. AKS 46.2 (0 - 95) was preoperatively 88.3 (17 - 100) with 3 years P 0.001. OKS 39.0 (22 - 53) was preoperatively 22.6 (12 - 53) with 3 years P 0.001. 17 of the 219 who had x-rays (8%) had radiolucent zones on x-ray. Our results demonstrate a good early aseptic survivorship of the PFCSCC at three years of 99.6%, combined with a good functional and objective improvement in our patients in three years.
