Sterility and Surgical Setup in the Operating Room | Osgenic

What does surgical setup include?

“Surgical setup” is a practical umbrella term rather than a single infection-prevention intervention. Depending on the case, it may include:

• verification of the patient, procedure, and operative site; (4, 5)

• a positioning plan that protects the patient and permits the intended procedure; (6)

• preparation of sterile supplies, gowns, gloves, instruments, and the sterile field; (1)

• surgical hand antisepsis before sterile gowning and gloving; (1, 2, 3)

• surgical-site skin preparation and sterile draping; (2, 8, 9)

• review of equipment, imaging, specimens, and anticipated critical events during the surgical safety process; (5)

• plans for counting selected items and accounting for items placed in the patient, according to facility policy; and (10)

• the final pre-incision time-out with the immediate procedure team. (4)

These elements are related, but they are not interchangeable. To keep the terminology precise, this article treats patient positioning as a separate patient-safety and procedural-access task rather than as sterile technique. Positioning can affect later preparation and draping, but the cited positioning guidance addresses access and injury prevention, whereas sterile-technique guidance addresses maintenance of an aseptic field. (1, 6)

Sterility, asepsis, and sterile technique

In perioperative practice, sterile technique refers to the practices used to establish and maintain an aseptic sterile field during an operative or other invasive procedure. AORN guidance addresses surgical hand antisepsis, gowning and gloving, opening and handling sterile supplies, field integrity, movement, and corrective action after suspected contamination. (1)

The sterile field includes the prepared operative site and the sterile drapes, instruments, supplies, gowns, and gloves used within the field. Its practical boundaries are created by the way the patient, tables, drapes, equipment, and scrubbed team members are arranged. (1, 8, 9)

Only items verified as sterile should be introduced to the sterile field. Nonscrubbed personnel should not reach over an uncovered sterile field or move between sterile fields and scrubbed team members unless the perioperative team directs them to do so. (1, 11)

Which parts of a sterile gown are treated as sterile?

AST guidance describes the front of a sterile gown as sterile from approximately mid-chest to the level of the sterile field or waist. It describes the sleeves as sterile from about 5 cm (2 inches) above the elbow to the cuff seam; the back and axillary areas are not treated as sterile. (8)

Practical learner guidance: use these as operational boundaries, but follow the facility’s policy and the scrubbed team’s instructions when local practice differs or a boundary is uncertain. (8)

Which parts of a draped table are treated as sterile?

AST guidance treats the top surface of a properly draped sterile table as sterile and the area below table level as nonsterile. It also advises against repositioning a sterile drape after placement because movement can bring a nonsterile surface into the field. (9)

Verification and the surgical time-out

Sterile technique does not replace procedural verification. The Joint Commission’s Universal Protocol requires a final time-out immediately before incision, with the immediate members of the procedure team participating. The verification process is intended to confirm the correct patient, procedure, and site. (4)

The WHO Surgical Safety Checklist uses three pauses: before induction of anesthesia, before skin incision, and before the patient leaves the operating room. WHO describes the checklist as a tool for team participation and recommends using the checklist itself rather than relying on memory alone. (5)

Checklist items include patient identity and procedure confirmation, site marking when applicable, anticipated critical events, antimicrobial prophylaxis when indicated, essential imaging, equipment concerns, surgical counts, specimen labeling, and recovery concerns. Facilities may adapt the checklist to local practice while preserving its safety goals. (5)

Practical learner takeaway: during a formal pause, stop nonessential activity, listen, and participate when asked. This is an educational application of the cited team-participation requirements, not a separate guideline quotation. (4, 5)

Patient positioning and procedural access

Patient positioning should provide the access required for the planned procedure while reducing avoidable excessive range of motion, nerve injury, and pressure injury. An anesthetized patient cannot reliably report pain or respond to an excessive range of motion, so the team must plan the position and protective measures in advance. (6, 20)

Positioning requirements are procedure- and patient-specific. (6, 20) Practical learner checklist: identify the actual position, laterality, padding, supports, and positioning devices used for the case. Confirm any imaging or equipment requirements from the case plan and local protocol rather than inferring them from a generic setup.

Positioning may affect how the operative site is prepared and draped, but this article does not classify it as a sterile-technique step. (1, 6)

Surgical hand antisepsis, gowning, and gloving

Before donning sterile gloves for surgery, scrubbed team members perform surgical hand antisepsis. WHO and CDC guidance allow an antimicrobial soap-and-water method or a suitable alcohol-based surgical hand-rub method, with the product used for the manufacturer-specified application time. (2, 3)

CDC guidance includes removing rings, watches, and bracelets and cleaning debris from beneath the fingernails before surgical hand antisepsis. When an alcohol-based surgical hand-rub is used, hands and forearms should be prepared according to the product instructions and allowed to dry before sterile gloves are donned. (3)

AORN recommends inspecting gloves immediately after donning and during use. A contaminated glove should be changed using sterile technique; suspected contamination should be addressed rather than ignored. (1)

Sterile gowns and gloves provide barrier protection, but not every visible surface of a gown is treated as sterile. (1, 8) Practical learner guidance: avoid touching a scrubbed person’s gown or gloves and ask where to stand before approaching the field. (8, 11)

Surgical-site skin preparation

Surgical-site skin preparation is the preoperative antiseptic treatment of the patient’s skin at the planned operative site. WHO recommends an alcohol-based antiseptic solution containing chlorhexidine for preparation of intact skin in patients undergoing surgery. WHO grades this as a strong recommendation based on low- to moderate-quality evidence. (2)

That recommendation is not a universal instruction for every patient or anatomical site. The WHO guideline states that alcohol-based solutions should not be used on neonates or allowed to contact mucous membranes or the eyes. Chlorhexidine solutions must not contact the brain, meninges, eyes, or middle ear. Possible allergies and skin irritation also need to be considered. Product labeling and local policy may impose additional contraindications or precautions. (2)

The WHO recommendation concerns intact skin and does not establish a preparation regimen for open wounds or other non-intact surfaces. It should not be extrapolated to those settings; use applicable site-specific guidance, the product IFU, and local protocol. (2)

Hair removal

Hair should not be removed routinely. When removal is absolutely necessary, WHO recommends clipping rather than shaving. The guideline found a lower surgical-site infection risk with no hair removal or clipping than with shaving and strongly discourages shaving. (2)

Application area, pooling, and drying

The application area is procedure- and site-specific. AORN’s abdominal-preparation example advises planning for the intended incision, possible extension, and drains, but that example should not be generalized to every anatomical site. Follow the applicable procedure protocol and product IFU for application technique, coverage, contact time, and drying time. (19)

Alcohol-based skin preparations are flammable. The solution must be allowed to dry by evaporation before an ignition source is used. The team should prevent pooling beneath the patient and avoid saturation of drapes or other materials with alcohol-based solution. (2, 13)

The correct product and technique depend on the patient, site, procedure, allergy history, and product IFU. A preparation method suitable for intact skin on one body area should not be generalized to the eye, ear, mucosa, central nervous system, neonatal skin, or another special site. (2)

Draping the operative field

After the selected skin preparation has been applied and dried as required, sterile drapes help define and protect the operative field. WHO suggests either sterile disposable nonwoven or sterile reusable woven drapes and gowns for surgery. The recommendation is conditional, and WHO did not identify a clear surgical-site infection advantage for one of these two categories over the other. (2)

AST guidance advises handling drapes as little as possible, avoiding repositioning after placement, and treating material below table level as nonsterile. (9)

The cited sources do not establish one draping sequence for all operations. The precise field and sequence are case-specific; learners should observe the team’s procedure-specific method rather than applying a generic sequence. (9)

Sterile supplies, implants, instruments, and item accounting

Before a sterile item is introduced to the field, AORN guidance calls for verification of package and product integrity, sterility information—including chemical-indicator results—and the expiration date when applicable. Implants may require additional checks, such as confirmation of the correct size or other device-specific characteristics. (12)

A package that is damaged or otherwise has compromised integrity should not be assumed to maintain sterility. The item should be managed according to facility policy and the manufacturer’s information. (1, 12)

AORN distinguishes counting from accounting. Counting tallies selected items used during a procedure. Accounting verifies that an item placed in the patient has been removed. Which items are counted, when counts occur, and how discrepancies are managed are defined by facility policy and an interdisciplinary risk assessment. (10)

Practical learner guidance: before touching or moving an item, ask the responsible perioperative team member what may be handled. Do not touch, open, relocate, or introduce an item unless directed. (1, 11)

Doors, traffic, and movement in the operating room

CDC environmental infection-control guidance recommends keeping operating-room doors closed except for passage of patients, personnel, and equipment, and limiting entry to essential personnel. (7)

AORN recommends limiting nonessential movement around an open sterile field and preparing the field as close as possible to the time of use. AORN also advises nonscrubbed personnel not to reach over an uncovered sterile field or move between sterile fields and scrubbed team members. (1, 11, 14)

Practical learner takeaway: pause before moving near a sterile area, ask where to stand, and avoid unnecessary door openings. Do not carry a nonsterile object over a sterile surface. (1, 7, 11)

What to do when contamination is suspected

A suspected break in sterile technique should be announced immediately. AORN recommends immediate corrective action when contamination is suspected and changing a contaminated glove using sterile technique. (1)

The specific response depends on what was affected and local policy. A learner should report the event and allow the perioperative team to determine the corrective action rather than acting alone. (1, 12)

Example wording—not a guideline quotation: “I may have touched the sterile field.” It communicates the uncertainty so that the perioperative team can assess it promptly under local policy. (1, 11)

Common sterile-field errors to avoid

Examples of actions that conflict with the cited sterile-technique guidance include:

• reaching over an uncovered sterile field; (1, 11)

• touching the back or axillary area of a scrubbed person’s gown; (8)

• allowing an item to hang below table level and then treating it as sterile; (9)

• repositioning a sterile drape after placement; (9)

• moving between sterile fields and scrubbed personnel without direction; (11)

• opening doors or entering the room without a necessary reason; and (7)

• failing to report suspected contamination promptly. (1)

A practical OR setup checklist for learners

This checklist is for preparation and observation. It is not a substitute for the WHO Surgical Safety Checklist, the Joint Commission Universal Protocol, local perioperative policy, or direct supervision. (4, 5)

Before entering the operating room

• What procedure, site, side, and level are planned?

• What position and surgical approach are planned?

• Which anatomy should I review?

• Is fluoroscopy, a microscope, navigation, traction, a tourniquet, an implant system, or other special equipment expected?

• Which local setup or sterile-technique rules should I review before the case?

Before incision

• Has the formal verification process been completed?

• Where are the sterile-field boundaries?

• Which team members are scrubbed?

• Where has the circulating nurse or scrub person asked me to stand?

• Has an alcohol-based skin preparation dried, and is pooling absent?

• What critical events, equipment issues, imaging needs, or other concerns were discussed during the time-out?

During the procedure

• Am I avoiding unnecessary movement and door openings?

• Am I keeping nonsterile objects away from the sterile field?

• Do I know whom to tell immediately if contamination may have occurred?

• Am I following the scrubbed and circulating team members’ directions rather than improvising?

Related Osgenic learning

The Osgenic content library lists procedure-specific operative guides. (15) Editorial linking recommendation: use the relevant page for case preparation rather than implying that one generic room setup applies to every orthopaedic operation. (6, 15)

Related internal reading opportunities include:

• Total knee arthroplasty—mechanical alignment

• Anterior cruciate ligament reconstruction

• Total hip arthroplasty—uncemented posterior approach

• C-arm projections in ankle fracture surgery

• Lumbar microdiscectomy

Osgenic describes its orthopaedic resident resources as combining clinically relevant anatomy, procedural steps, and practical considerations for case preparation. Its 3D surgical anatomy page describes interactive anatomy in procedure-specific context. The residency programs page describes institutional access to procedure-focused resources and 3D surgical anatomy. (16, 17, 18)

These product descriptions are Osgenic’s own statements. They should not be interpreted as evidence that an educational platform replaces supervision, facility protocols, product IFUs, or competency-based training. (1, 2, 3, 4, 5)