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Abstract Objective To observe the clinical effect and migration of the cementless femoral stem after total hip arthroplasty (THA) .Methods A total of 124 patients (136 hips) who underwent THA at the Joint Center of Honghui Hospital from October 2019 to October 2020 were included.There were 56 hips in males and 80 hips in females,and the mean age was (53.0±12.5) years.Visual analog scale(VAS),harris hip score (HHS),12-item short form health survey(SF-12) were mainly observed before operation and after operation.Wound healing status,and complications such as prosthesis loosening,infection,and the revision rate were also collected.X-ray examination of the pelvis was performed on the 1st day,1 month,3 months,6 months and 1 year after operation,and the migration of the femoral stem were measured.Results VAS,HHS and SF-12 were significantly improved at 1 month,3 months,6 months and 1 year after surgery than before.VAS stopped to improve from 3 months and HHS stopped to improve from 6 months after surgery,and SF-12 showed a trend of gradual improvement within 1 year after surgery.Poor superficial wound healing was happened in 2 cases at 1 month,which healed after debridement and suturing.There were no prosthesis loosening,infection and other patients requiring revision surgery in the 1-year follow-up.The migration of the cementless femoral stem was indeed occurred within 3 months after the operation.The average migration was (0.46±2.63) mm at 1 month and (1.15±2.77) mm at 3 months,and there was no migration after 3 months.Conclusion The application of cementless femoral stem in total hip arthroplasty can obtain good clinical results.And the migration was observed in the first 3 months after surgery,but the amount of migration does not increase the risk of early failure.
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Corresponding Authors:
Feng Lei
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