Table 2: Summary of data for ABN vs. Conventional Guides for Blood Loss and Operative Time.

Author & Year

Sample Size

Level of Evidence

Conclusion

Ueyama et al., 2018 [31]

159

III

No requirement for blood transfusion and no increase in operative time 

Moo et al., 2018 [29]

60

III

No difference in transfusion incidence of duration of surgery 

Kawaguchi et al., 2017 [24]

67

III

Decreased blood loss with no difference in duration of surgery  

Goh et al., 2018 [26]

114

II

No difference in duration of surgery 

Ikawa et al., 2017 [10]

241

I

No requirement for blood transfusion. Distal femoral resection time was longer 5.6 minutes vs. 2.9 minutes 

Gharaibeh et al., 2017 [23]

179

I

No difference in duration of surgery