Abstract
Postoperative limb alignment is important for successful total knee arthroplasty (TKA). Femoral shaft bowing angle (FBA) in coronal plane may influence distal femoral valgus cutting angle (DFVCA) and 5±2º may not perpendicular to mechanical axis.Methods:Sixty-six lower extremity long film x-ray of osteoarthritic knees were collected and analyzed with IntstaRISPACS (digital radiography software). The correlation and linear regression between FBA and DFVCAwere measured using SPSS 24.Results:Our study shows a strong correlation between FBA and DFVCA. Lateral FBA tends to present with DFVCA outside 7º as shown in linear regression test, vice versa.Conclusion:Since DFVCA is influenced by FBA, we recommend preoperative femoral x-ray in all knee replacement candidates.
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