Background: Blood transfusion is an important part of management of patients undergoing orthopaedics surgeries. However frequently perioperative anticipated blood requirements overshoot the actual need resulting in unnecessary cross matching of blood. Therefore, it is important to formulate a maximum surgical blood ordering schedule (MSBOS) for common orthopaedics surgeries.

Objective: To evaluate our blood utilization in various orthopaedic surgeries and to develop a blood ordering schedule for various orthopaedic surgeries.

Methodology: A 16-month (March 2022 -august 2023) retrospective study was carried out on patients undergoing orthopaedic procedures. Data collected included number of patients transfused, number of units cross-matched and number of units transfused.

Results: A total of 2955 units of blood were cross matched for 2298 patients out of which only 1790 units of blood was transfused to 1274 patients. 3 out of 7 surgical procedures had CTR higher than 2. The mean CTR was 1.65,

Mean transfusion probability (%) was 55.43, Mean Transfusion index was 1.67 and Mean Blood Utilization (%) was 60.57.

Conclusion: The overall CTR was high with moderate percentage blood utilization and resultant significant blood wastage. To prevent unnecessary blood wastage, we suggest the implementation of the recommended MSBOS schedule.