A study to compare two different ways of giving a numbing medicine using an ultrasound scan around nerves below the collarbone to provide pain relief for patients undergoing forearm and hand surgeries

INTERVENTION: Intervention1: Ultrasound‐guided Retroclavicular Brachial Plexus Block: Ultrasound‐guided retroclavicular brachial plexus block using 25 mL of 0.5% bupivacaine with 4 mg dexamethasone for distal upper limb surgeries. Control Intervention1: Ultrasound‐guided Costoclavicular Brachial Plexus Block: Ultrasound‐guided costoclavicular brachial plexus block using 25 mL of 0.5% bupivacaine with 4 mg dexamethasone for distal upper limb surgeries. CONDITION: Health Condition 1: S525‐ Fracture of lower end of radius Health Condition 2: S522‐ Fracture of shaft of ulna Health Condition 3: S523‐ Fracture of shaft of radius Health Condition 4: S526‐ Fracture of lower end of ulna Health Condition 5: S529‐ Unspecified fracture of forearm Health Condition 6: S560‐ Injury of flexor muscle, fascia and tendon of thumb at forearm level Health Condition 7: S561‐ Injury of flexor muscle, fascia and tendon of other and unspecified finger at forearm level Health Condition 8: S562‐ Injury of other flexor muscle, fascia and tendon at forearm level Health Condition 9: S563‐ Injury of extensor or abductor muscles, fascia and tendons of thumb at forearm level Health Condition 10: S564‐ Injury of extensor muscle, fasciaand tendon of other and unspecified finger at forearm level Health Condition 11: S565‐ Injury of other extensor muscle, fascia and tendon at forearm level Health Condition 12: S568‐ Injury of other muscles, fascia and tendons at forearm level Health Condition 13: S569‐ Injury of unspecified muscles, fascia and tendons at forearm level Health Condition 14: S660‐ Injury of long flexor muscle, fascia and tendon of thumb at wrist and hand level Health Condition 15: S661‐ Injury of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand level Health Condition 16: S662‐ Injury of extensor muscle, fasciaand tendon of thumb at wrist and hand level Health Condition 17: S663‐ Injury of extensor muscle, fasciaand tendon of other and unspecified finger at wrist and hand level Health Condition 18: S664‐ Injury of intrinsic muscle, fasciaand tendon of thumb at wrist and hand level Health Condition 19: S665‐ Injury of intrinsic muscle, fasciaand tendon of other and unspecified finger at wrist and hand level Health Condition 20: S668‐ Injury of other specified muscles,fascia and tendons at wrist and hand level Health Condition 21: S669‐ Injury of unspecified muscle, fascia and tendon at wrist and hand level Health C PRIMARY OUTCOME: To compare the total duration of analgesia between both groups ; Timepoint: To compare the total duration of analgesia between both groups ; INCLUSION CRITERIA: ASA physical status I and II. Patients aged 18 to 59 years. Scheduled for elective distal upper limb surgery under ultrasound‐guided infraclavicular brachial plexus block. Willing to provide written informed consent. SECONDARY OUTCOME: To compare the block performance timeTimepoint: Time from needle insertion to completion of drug injection To compare the needle visualization scoreTimepoint: At the time of needle insertion to till completion of drug injection To compare the number of needle passes ; Timepoint: At the time of insertion of needle To compare the onset of sensory block and motor block in all territories of peripheral nerves in brachial plexus‐ Musculocutaneous nerve, median nerve, radial nerve, ulnar nerveTimepoint: 1, 3, 5, 10, 15 and 20 minutes To compare the percent change in diaphragmatic excursionTimepoint: Baseline and at 30 minutes after injection To compare the Perfusion inde Xand tissue oxygen saturationTimepoint: Baseline, 1,3,5,10,15 and 20 minutes To look for any complications like vascular puncture, pneumothorax, nerve injuryTimepoint: During the needle insertion and drug injection phase To look for Total rescue analgesic consumption in 24 hoursTimepoint: 2,4,6,12 and 24 hours