Setting up a patient safely and efficiently in the beach chair position can make or break a shoulder case—especially in fast-paced ORs. Based on a recent teaching video we shared, this practical guide walks through our approach to beach chair positioning using the Tenet/T-Max-style beach chair bed and the Smith & Nephew Spider arm holder. We cover common pitfalls, quick wins, and small adjustments that pay big dividends for orthopedic residents, anesthesia teams, surgical techs/scrubs, nurses, and OR managers.
We operate throughout Buffalo and Western New York (UBMD Orthopedics & Sports Medicine)—including cases at Buffalo General Medical Center—and we see the same setup challenges you do. The tips below are designed to help you have a smoother day in the OR, whether you’re working in Buffalo, Amherst, Williamsville, Orchard Park, or the broader Buffalo–Niagara region.
Disclaimer: This article is educational content for trained professionals. It is not medical advice and is not a substitute for proper hands-on instruction. We have no financial relationship with the manufacturers mentioned.
Why the Beach Chair Setup Matters
- Patient safety: Prevents sliding, kinking, or head/neck malposition; prioritizes never-events avoidance (falls).
- Exposure & efficiency: Correct bed/headrest alignment and arm positioning improve access for both open and arthroscopic shoulder procedures.
- Anesthesia workflow: Predictable draping and head/airway access support smooth induction and maintenance.
Equipment We Use (And Why)
- Beach chair bed: Tenet/T-Max-style bed with pneumatic lift and sliding upper deck.
- Arm positioner: Smith & Nephew Spider arm holder (legacy version with pneumatic foot pedal).
Tip: Treat every blue locking ring as your “seatbelt.” Blue up = locked, blue down = open. - Face mask head support and foam wedge/leg bolster to reduce distal slide.
- Stirrup (“sling”) for prep/drape (we prefer it over finger traps for reliability and speed).
- Hinged elbow brace (as needed for stabilization during prep or recovery).
We frequently see the same or equivalent systems across facilities; the principles below translate well even if your exact model differs.
Target Angles by Procedure (Quick Reference)
- “Relaxed” beach chair (≈30°)
Open procedures such as open Bankart, open rotator cuff, and many shoulder arthrotomies. - Near-vertical (≈75–90°)
Arthroscopy—facilitates intra-articular visualization and instrument maneuverability.
Pro Tip: Pre-plan the final angle as part of your team time-out so anesthesia, nursing, and the scrub know what to expect.
Head & Neck: Three-Axis Fine-Tuning
Many setup issues start with a mis-mounted headrest. Confirm correct orientation first.
- AP translation (fore–aft): Use the upper set screw to accommodate kyphosis or needed flexion/extension while maintaining neutral alignment.
- Vertical height: Adjust via the side set screw to fit body habitus—tall patients need the plate higher to keep the occiput cradled.
- Ball-joint finesse: The dual ball joints provide broad adjustability for final “cradle” of the occiput. Stabilize the head manually while you dial these in, then lock.
Face mask fit: Small end near the chin, larger end on the forehead. Buckle all four points; tighten evenly for secure, neutral positioning.
“Bathroom Faucet” Rule: Safety Strap First
We always look for the safety strap the moment we walk in—no exceptions. If the patient isn’t strapped, the setup isn’t finished. Use one or two cross-chest straps early; you can always loosen and re-secure during transitions.
Gain the Posterior Exposure You Need
- Side bolsters: Select the height/offset that captures the chest wall without impinging the axilla. Smaller bodies often benefit from the lower profile bolster.
- Sliding upper deck: For a left shoulder, slide the upper deck to the right (and vice-versa). This single step dramatically improves posterior access and arm extension; forgetting it is a common reason exposure feels “tight.”
Spider Arm Holder: Locking Sequence & Heavy-Load Safety
- Mounting: Seat the post, listen for the click, then blue ring up to lock. No click = not seated.
- Pneumatic foot pedal: Always hold the arm before depressing the pedal—if you don’t, the assembly can drop fast and hard.
- Stability trick: If the prep stand drifts medially, use the Spider to buttress it—or place a step stool under the stand post as a simple mechanical stop.
Stirrup Slip-Knot: Fast, Reproducible, Secure
We prefer a simple stirrup sling during prep/drape:
- Remove the ring; create a slip-knot by pulling a small loop through one D-ring.
- Two lower loops cradle the wrist; the upper loop hangs from the prep stand.
- Adjust height so the axilla is fully exposed for antisepsis.
Why not finger traps? The stirrup distributes load well, is faster for most teams, and avoids digit pressure points.
Draping Workflow That Avoids “Closing Yourself Out”
- Clear U-drape first (non-sterile): Create a wide template beneath the axilla and across the back. Don’t overreach—this layer is your guide.
- Down sheet/half sheet: Lay across the torso to frame the field.
- Sterile U-drape #1 (body side): Follow the clear U by ~1 cm; do not try to cover the world on the first pass. Keep it wide and under the chin.
- Sterile U-drape #2 (head side): Hand the superior edge to anesthesia; pull sticky panels down flat toward the sternal notch. Aim high in the neck–chest junction for maximum flexibility.
- Arm off the stirrup → stockinet + Coban: Keep the hand relatively free; bunch a little stockinet proximally if you like to use a towel clamp later.
- Seal (optional): IO-band strips around the upper arm/shoulder junction can reduce edge lift during long cases.
Common pitfall: Trying to “finish” the field with the first U-drape. Keep it broad; the second drape does the final closure.
Bed Controls & Room Setup
- Floor lock is two-step (unlock/lock with deliberate press-and-hold).
- Center under the lights when possible; it preserves rotational range for overheads during the case.
- Confirm weight rating (commonly ~350 lb); plan extra hands and incremental adjustments for heavier patients.
Local Training & Collaboration in Buffalo–Niagara
We’re committed to OR education across Buffalo, Amherst, Williamsville, Orchard Park, Niagara Falls, and Greater WNY. If your team would like an in-service on beach chair positioning (or an on-site dry run with your exact bed/arm holder), we’re happy to collaborate with OR leadership and anesthesia.
Need a Shoulder Expert or Want On-Site OR Education?
As a patient seeking care or a OR leader looking to streamline shoulder workflows, call 716-204-3200 or Request a consultation
Locations: Amherst (across from UB Stadium) and throughout Buffalo & Western New York
We help patients and OR teams across Buffalo–Niagara get safer, smoother shoulder surgery days.