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Year : 2020  |  Volume : 15  |  Issue : 2  |  Page : 276-281

Postoperative changes in hemoglobin and packed cell volume values in patients undergoing primary lower limb arthroplasty

1 Department of Orthopaedics, AFMC, Pune, Maharashtra, India
2 Department of Orthopaedics, INHS Kalyani, Visakhapatnam, Andhra Pradesh, India

Correspondence Address:
Dr. Mohammed Schezan Iqbal
Department of Orthopaedics, INHS Kalyani, Visakhapatnam - 530 005, Andhra Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jdmimsu.jdmimsu_266_20

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Context: Total knee arthroplasty (TKA) and total hip arthroplasty (THA) are commonly performed procedures for degenerative conditions of knee and hip joints, respectively. Lower limb arthroplasty involves visible and hidden blood losses leading to a routine requirement of blood transfusion. Postoperative rehabilitation and recovery is also dependent on hemoglobin (Hb) and packed cell volumes (PCVs) following surgery. Aims: The aim is to determine changes in Hb and PCV values in patients undergoing primary lower limb arthroplasty in the first 2 weeks' postoperatively. We also aimed to find out any correlation between length of hospitalization following lower limb arthroplasty with preoperative Hb and PCV values. Setting: This study is a cross-sectional, analytical study analyzing the postoperative changes in Hb and PCV in patients undergoing primary lower limb arthroplasty. Subjects and Methods: Forty patients undergoing primary TKA or THA were studied with a compilation of demographic, hematological, and clinical outcomes over a period of 14 days' postoperatively. Statistical Analysis Used: Chi-square test, unpaired t-test, analysis of variance (ANOVA), and Mann–Whitney U-tests. Results: On comparing the data within the groups at multiple intervals using repeated measures ANOVA, significant difference was found in the Hb at various time intervals for THA patients (F = 46.32, P < 0.0001) and for TKA patients (F = 55.26, P < 0.0001). The mean PCV levels of THA and TKA patients were comparable at various time intervals, except postoperative day 1, when the PCV levels were significantly lower in THA group than TKA group (P = 0.0331). Conclusion: There was a definite postoperative decrease in Hb levels, with the highest fall on the 5th day postsurgery, with respect to the preoperative Hb and PCV levels.

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