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Greater implant survivorship
64%
3153/4925
Decreased WOMAC scores
14%
710/4925
Increased rate of extensor mechanism rupture
4%
207/4925
Increased postoperative pain
680/4925
Increased component osteoloysis
3%
151/4925
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Females undergoing total knee arthroplasty with standard (non-gender specific) components show improved implant survivorship compared to males. MacDonald et al performed a Level 2 study of 3817 patients who underwent 5279 primary total knee replacements (3100 female, 2179 male) with a minimum of 2 years followup. They found that women demonstrated greater implant survivorship, greater improvement in WOMAC scores, equal improvements in SF-12 scores, and less improvement in only the Knee Society function and total scores. Greene discusses the role of gender-specific implant designs that are currently marketed and their benefit to patients. The article concludes that the amount of attention that implant manufacturers have focused on female specific components(e.g. narrower M/L dimensions, decreased thickness of the anterior flange, and increased trochlear groove angle) is of interest, considering that there is no evidence suggesting that females have inferior outcomes with standard components.
2.5
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