“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

Table 2 Outcome variables for various orthopaedic procedures

Procedure	Total Cases	Units of PCV^a Cross-matched	Units of PCV^a Transfused	CT^b 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

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