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Table 2 Outcome variables for various orthopaedic procedures

From: “It’s a precious gift, not to waste”: is routine cross matching necessary in orthopedics surgery? Retrospective study of 699 patients in 9 different procedures

Procedure Total Cases Units of PCVa Cross-matched Units of PCVa Transfused CTb Ratio Transfusion Index Transfusion Probability (%) Calculated MSBOS
Total Hip Replacement 72 194 38 5.10 0.54 24.29 0.81
Total Knee Replacement 128 289 22 13.13 0.18 12.80 0.27
Open Reduction Internal Fixation 120 267 46 5.80 0.44 16.19 0.66
Closed Reduction Internal Fixation 145 351 42 8.36 0.31 25.0 0.46
Minor Wound Debridement 81 157 39 4.03 0.64 36.07 0.96
Major Wound Debridement 58 178 92 1.93 1.64 60.71 2.46
Tumor Resection 31 142 61 2.33 2.03 40.00 3.05
Arthroscopy 40 61 2 30.5 0.06 6.25 0.09
Hand and Microvascular Surgeries 24 60 7 7.5 0.29 25.00 0.44
Overall 699 1699 349 4.87 0.55 25.0  
  1. a PCVPacked Cell Volume
  2. bCT Cross Match to Transfusion