BACKGROUND: It has rarely been reported about the changes of hemoglobin (Hb) and hematocrit (Hct) in elderly @entity1 receiving total knee arthroplasty (TKA) or @entity572 ( @entity572 ). This study aimed to evaluate the changes of Hb and Hct after TKA or @entity572 in elderly @entity1 , and analyze its relationship with sex and type of arthroplasty. METHODS: This is a prospective cohort study, including 107 @entity1 receiving TKA or @entity572 without allogeneic blood transfusion. There were 54 males and 53 females, with a mean age of 69.42 years. Levels of Hb and Hct were examined preoperatively and during the 6 months follow-up after operation. RESULTS: Levels of Hb and Hct decreased postoperatively and reached their minimum points on postoperative day 4. Thereafter, Hb and Hct recovered to their preoperative levels within 6-12 weeks. No significant differences in the levels of Hb and Hct were noticed between different sexes. @entity572 @entity1 showed significantly greater drop in Hb and Hct than TKA @entity1 in the first 4 days postoperatively (P < 0.05). CONCLUSIONS: Levels of Hb and Hct decreased during the first 4 days after arthroplasty and gradually returned to their normal levels within 6-12 weeks postoperatively. @entity572 may be associated with higher postoperative @entity190 than TKA.

Changes of hemoglobin and hematocrit in elderly XXXX receiving lower joint arthroplasty without allogeneic blood transfusion.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity572 :: ('MESH:D006617', 'Disease') :: ['total hip arthroplasty', 'THA'] @entity190 :: ('MESH:D006473', 'Disease') :: ['blood loss']
@entity1 :: (9606,Species) :: ['patients']
