Choosing an Operating Table Arm Board for Surgery

Why the arm board matters

During anaesthesia the patient cannot report pain or numbness, so the team is responsible for preventing nerve and soft-tissue injury. The arm board holds the arm in a controlled position that provides access to IV lines and blood pressure cuffs, while avoiding stretch, compression and pressure points. Poor arm positioning is a recognised cause of brachial plexus and ulnar nerve injury in surgery.

Different procedures place different demands on the arm. During laparoscopic surgery in steep Trendelenburg, for example, the arm may be tucked and the shoulder is under load. In shoulder or upper-limb surgery the arm may be out on a board or on a dedicated support. Defining your most frequent set-ups first makes it easier to choose the number and type of boards you need.

The arm board is part of the table system. Its stability, height relative to the mattress and attachment point all affect how well the arm is supported.

Types of arm support on the operating table

Most theatres use a detachable arm board that mounts on the side rail, with a padded surface that is radiolucent if imaging is used. Variants include boards that tilt, adjust in height, extend in length or rotate around the rail. A separate hand table is used for hand and arm procedures, and arm supports on the side of the table keep the arm tucked for some surgical positions.

Compare the following:

• Attachment method and fit to your rail profile
• Adjustability in height, angle and length
• Padding and cover materials that are easy to clean
• Radiolucency for procedures with imaging
• Load rating and stability when the arm is loaded

Positioning the arm safely

Follow your institution's protocol. As a general principle, avoid excessive abduction of the arm beyond about 90 degrees, avoid hyperextension, keep the forearm in a neutral or supinated position, and pad the elbow. Check that the board is level with the mattress or slightly below, so the shoulder is not stretched. When the patient is tucked at the side, protect the hand and fingers from the side-rail clamps.

Training also matters. New staff should practise attaching the board, setting its height and checking that the clamp is fully locked before the patient is moved. A short, written step list near the table helps maintain a consistent routine, and any board that wobbles, droops or has a damaged clamp should be taken out of service until it has been checked.

Re-check the position after every table movement, particularly lateral tilt and Trendelenburg, which can shift the shoulder. Include arm position in your surgical safety checklist.

Attachment, rails and compatibility with Lojer tables

Arm boards attach to the table's accessory rails. Smarter Practico and Grand Promerix accept accessories on their side rails, and Grand Promerix uses the Fluent Lock system, which connects accessories with one click. Practico Manual offers Euro, UK and US side rails, which helps with compatibility of accessories from different systems. Scandia Prime has full-length accessory rails.

Always confirm with the manufacturer which arm boards are approved for a given table and load. See our guide to operating table clamps and side rails and the full list of operating table accessories.

Buying checklist

Ask whether the arm board is supplied with the table, how many you need per theatre, what spare covers are available and how the board is cleaned. For hand and arm procedures consider a dedicated hand surgery table. Review the Smarter Practico and Grand Promerix pages and contact Beckfinity for a quote or consultation.