This study compared two common anesthesia techniques used for forearm trauma surgery-Bier's block and the supraclavicular block-to determine which provides better surgical conditions and patient comfort. Among the 66 patients studied, Bier's block produced a much faster onset of numbness and muscle relaxation, but its pain relief wore off quickly. In contrast, the supraclavicular block took longer to take effect but provided significantly longer-lasting postoperative pain relief and greater overall patient comfort, making it more suitable for trauma cases where prolonged anesthesia and smoother recovery are needed. Overall, the study found the supraclavicular block to be the more effective and patient-friendly option for forearm surgeries.

Forearm trauma surgery commonly requires regional anesthesia to provide surgical conditions and postoperative pain relief. Two widely used techniques are Bier's block (intravenous regional anesthesia) and the supraclavicular brachial plexus block, but limited evidence exists comparing their performance specifically in trauma patients. This randomized controlled trial evaluates these two approaches to determine differences in onset of sensory and motor block, duration of postoperative analgesia, and patient comfort. Bier's block is known for its simplicity and rapid onset but is limited by tourniquet pain and a short duration of analgesia once the tourniquet is released. In contrast, the supraclavicular block provides dense anesthesia of the upper limb with the potential for longer postoperative pain relief, especially when performed under ultrasound guidance. In this study, 66 adult patients undergoing forearm surgery were randomized to receive either Bier's block or supraclavicular block using standardized techniques. An independent observer assessed block onset and recovery characteristics, and patient comfort was recorded using validated scales. The goal of this study is to generate evidence that may guide anesthetic selection for forearm trauma cases by identifying which block technique offers better perioperative performance and enhances postoperative pain control while avoiding unnecessary duplication of data reported in other fields of the trial record.

Inclusion Criteria:

• Adults aged 18 to 60 years
• ASA physical status I-III
• Patients scheduled for elective or emergency forearm surgery
• Presence of forearm fracture or upper limb trauma requiring regional anesthesia
• Ability to provide informed consent

Exclusion Criteria:

• Patient refusal or inability to give informed consent
• Known allergy to local anesthetic agents
• Coagulopathy or bleeding disorders
• Infection at the block site
• Pre-existing neurological deficits in the affected limb
• Severe cardiac, hepatic, or renal disease
• History of seizure disorders
• Pregnancy
• ASA physical status IV or higher
• Inability to cooperate with block assessment

Your study is a single-center anesthesia comparison trial.

There is no requirement to share individual participant data (IPD).

Unless you have a formal data-sharing mechanism (repository, request process, timelines), selecting Yes will create extra mandatory fields.

An independent outcomes assessor was blinded to group allocation. This assessor was not involved in administering the anesthesia and had no knowledge of whether the participant received a Bier's block or a Supraclavicular block. Sensory block onset, motor block onset, and patient comfort scores were evaluated by this blinded assessor to minimize assessment bias. No other study personnel were masked due to the distinct nature of the two anesthesia techniques.