Upper Extremity Trauma • Comparison between SCB, ICB and conventional treatment • Comparison between SCB, ICB and AXB • Comparison between SSB, combined ICB-SSB, combined axillary nerve block-SSB and conventional treatment for shoulder trauma • Comparison between ISB, combined ICB-SSB and combined axillary nerve block-SSB for shoulder trauma • Comparison between continuous and single-shot brachial plexus blocks Lower Extremity Trauma • Comparison between LPB, FB and combined FB-obturator nerve block for hip/femur trauma • Comparison between LPB and combined LPB-PSB for hip/femur trauma • Comparison between sciatic nerve block and conventional treatment for leg/ankle/foot trauma • Comparison between sciatic nerve block and combined sciatic nerve block-saphenous nerve block for leg/ankle/foot trauma • Comparison between continuous and single-shot lower extremity nerve blocks AXB: Axillary Brachial Plexus Block; FB: Femoral nerve Block; ICB: Infraclavicular Brachial Plexus Block; ISB: Interscalene Brachial Plexus Block; LPB: Lumbar Plexus Block; PSB: Parascaral Block; SCB: Supraclavicular Brachial Plexus Block; SSB: Suprascapular Nerve Block

Table 3: Areas pertaining to the use of peripheral nerve blocks in non-operative settings warranting further investigation with randomized trials.