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HLT-EMT39-02 · Lesson 6 · 27 clock hours · practice

Spinal Motion Restriction and Spine Packaging Skills

Objective. Students will apply manual cervical stabilization, rigid cervical collar sizing and placement, and appropriate patient packaging using long spine board or scoop stretcher, meeting NREMT psychomotor skill criteria.

⚠ Pending professional review

This lesson, its worked examples and its practice questions has not yet been verified by a licensed clinician in the field or by a certification or approval body. It is a study draft and may contain errors. Do not use it to make decisions about any patient or medication. Always follow your instructor, your supervising professional, and current official references and regulations.

VoTechWorks program approval and accreditation are still in progress. Credentials are issued only by the certifying bodies named in each program, after their own exams.

Why Spinal Motion Restriction Matters

The spine houses the spinal cord, and uncontrolled movement of an unstable vertebral column can convert a fracture into a permanent neurological injury. Emergency Medical Technicians and Paramedics apply spinal motion restriction (SMR) to limit that movement from the moment of first contact through hospital handoff. The goal is not rigid immobilization in the absolute sense but meaningful reduction of harmful motion while care continues.

Modern EMS guidelines have shifted away from routine spinal immobilization of every trauma patient toward selective SMR based on assessment findings — mechanism of injury, presence of midline spinal tenderness, neurological deficits, altered mental status, distracting injuries, and intoxication. You must assess first, then decide. Unnecessary boarding adds risk: it increases aspiration risk, causes pressure injuries, prolongs scene time, and produces pain that complicates further assessment.

Manual In-Line Stabilization

Manual in-line stabilization (MILS) is the foundation of every spinal packaging sequence. One rescuer places both hands firmly around the patient's head and holds the cervical spine in a neutral, in-line position — head facing forward, neither flexed nor extended, neither rotated nor laterally bent. MILS begins the moment you decide SMR is indicated and must be maintained without interruption until the patient is fully secured to the device and the device is secured.

Critical safety rule: Never release MILS until manual control is formally transferred to a mechanical device (collar plus head blocks plus secured straps) or to another trained rescuer who has assumed the hands-on position. Releasing prematurely is a critical failure on the NREMT psychomotor exam and, more importantly, a patient safety violation.

If the patient's head is found in a position that is not neutral, move it gently toward neutral unless the patient reports increased pain or neurological symptoms, or unless resistance is felt. Stop if any of these occur and immobilize in the position found.

Rigid Cervical Collar Sizing and Application

A rigid cervical collar alone does not immobilize the cervical spine; it reduces motion and serves as an adjunct to MILS and head blocks. Correct sizing is essential — an oversized collar will hyperextend the neck, and an undersized collar will not provide adequate support.

Sizing method: Measure the distance from the patient's shoulder (top of the trapezius) to the chin with the head in a neutral position. Match that measurement to the collar manufacturer's sizing guide, which is printed on the collar or packaging. Most manufacturers use a finger-width or numeric sizing system. Always verify fit after application: the chin should rest securely in the chin cup, the collar should not push the head into flexion or extension, and the trachea must not be compressed.

Application sequence:

1. Rescuer 1 maintains MILS throughout.

2. Rescuer 2 sizes the collar on the patient or uses the manufacturer's measuring guide.

3. Rescuer 2 slides the back panel behind the neck without moving the head.

4. Rescuer 2 secures the front panel under the chin and fastens the Velcro closure snugly.

5. Rescuer 2 confirms fit and checks that the airway is not compromised.

A collar is a relative contraindication when the patient has a penetrating neck injury or when a collar placement would cover a wound requiring monitoring. Use clinical judgment.

Long Spine Board: Log-Roll and Securing

The log-roll is the most common technique for moving a supine patient onto a long spine board.

Team roles (minimum three rescuers):

Sequence:

1. MILS established; collar applied.

2. Rescuers 2 and 3 position themselves and extend patient's arm closest to the board above the patient's head.

3. Position the long board alongside the patient.

4. Team Leader calls the roll: "On my count — one, two, three, roll." The patient is rolled as a unit no more than 45 degrees.

5. Board is slid in. Patient is lowered onto the board as a unit.

6. Center the patient on the board.

7. Apply torso straps first (chest, pelvis, legs) to secure the body before releasing MILS.

8. Apply head immobilization device (head blocks and tape or manufactured device) bilaterally to the board.

9. Rescuer 1 releases MILS only after head is secured.

10. Verify distal pulse, motor, and sensory function (PMS) before and after packaging.

Scoop Stretcher

The scoop (or orthopedic) stretcher separates lengthwise into two halves and is assembled around the patient without a log-roll, making it useful for patients in tight spaces or those who should not be rolled. Adjust the length to the patient, separate the halves, slide each half under the patient from the sides, lock the head and foot ends together, and secure with straps. MILS and collar are still applied before scoop assembly.

Communicating with the Patient

A conscious patient needs continuous reassurance and clear instructions. Tell the patient what you are doing before you do it. Instruct the patient not to move their head. Encourage them to report any change in sensation or pain immediately. Communication reduces patient movement caused by anxiety and improves cooperation during packaging.

NREMT Psychomotor Exam Expectations

The NREMT SMR skill station evaluates the complete sequence: MILS, collar sizing and application, packaging technique, securing order, and release of manual stabilization only after mechanical securing is complete. Critical failures include releasing MILS before the head is mechanically secured and failure to properly secure the patient. An 80% overall checklist score is required to pass; critical failures require immediate remediation and retest.

Key terms10

Spinal Motion Restriction (SMR)A selective, assessment-based EMS practice that limits harmful spinal movement in trauma patients using manual and mechanical techniques; replaces the older term 'spinal immobilization' to reflect that complete immobilization is neither achievable nor always indicated.
Manual In-Line Stabilization (MILS)A hands-on technique in which a rescuer holds the patient's head in a neutral, in-line position to prevent spinal movement until mechanical securing is complete; must not be released prematurely.
Neutral In-Line PositionThe position of the cervical spine in which the head faces forward without flexion, extension, rotation, or lateral tilt; the target position for SMR unless contraindicated by pain, resistance, or neurological symptoms.
Rigid Cervical CollarA manufactured device placed around the neck to reduce cervical spine motion; must be correctly sized to avoid hyperextension or inadequate support, and is always used as an adjunct to MILS and head blocks, not as a standalone immobilizer.
Log-RollA coordinated team maneuver in which a patient is rolled as a single rigid unit onto a long spine board; directed by the rescuer maintaining MILS at the head, who counts and calls all movement.
Long Spine Board (LSB)A rigid, full-length wooden or plastic board used to support and transport patients requiring spinal motion restriction; the patient is secured with torso straps and a head immobilization device.
Scoop StretcherA two-piece adjustable stretcher that separates laterally and is assembled around the patient without requiring a log-roll; useful in confined spaces or when rolling is not practical.
Head Immobilization DeviceA manufactured or improvised set of lateral head blocks and securing tape or straps applied to the long spine board to maintain the head in a neutral position after collar application; MILS must be maintained until this device is fully secured.
PMS CheckAssessment of Pulse, Motor function, and Sensory function in the extremities, performed before and after packaging to detect circulatory or neurological compromise caused by the procedure.
Critical Failure (NREMT Psychomotor)A specific unsafe action or omission during an NREMT skill station — such as releasing MILS before mechanical securing is complete — that results in automatic failure of the station regardless of overall score, requiring remediation and retest.
In class: Instructor demonstration of manual in-line stabilization, cervical collar sizing, log-roll to long board, and scoop stretcher assembly on a manikin; students observe and complete a step-sequence worksheet. · Paired practice at manikin stations: students take turns as team leader and team member performing manual stabilization, collar application, log-roll, and securing the patient with straps and head blocks; each pair performs the sequence at least four times. · Timed team scenario with a conscious, verbal manikin patient requiring extrication from a simulated vehicle seat; students must maintain manual stabilization, communicate with the patient, apply collar, and package correctly while instructor scores with NREMT psychomotor checklist.
Materials: Manikins, assorted rigid cervical collars (multiple sizes), long spine boards, head immobilization devices, straps, scoop stretcher, simulated vehicle seat prop, NREMT psychomotor checklists, stopwatch
Check: NREMT-style spinal motion restriction psychomotor checklist; all critical steps must be completed correctly; 80% overall checklist score; critical failures (loss of manual stabilization before collar applied, improper securing) require immediate remediation and retest.

Practice check8

Answer each question, then check it. Nothing is recorded; this is your own practice.

EMS Operations / Trauma
1. You are treating a conscious trauma patient found supine. When should manual in-line stabilization be released by the rescuer at the head?
Trauma / Patient Assessment
2. During collar sizing, you measure the distance from the patient's shoulder to the chin. You select a collar, apply it, and notice the patient's head is pushed into slight extension. What is the most appropriate action?
Trauma / Patient Assessment
3. A patient is found in a vehicle seat after a rear-end collision. She is conscious, alert, and denying neck pain, but she has midline cervical tenderness on palpation. Which finding most directly supports the decision to apply spinal motion restriction?
Trauma / EMS Operations
4. During a log-roll to a long spine board, which rescuer is responsible for directing the movement and calling the count?
Trauma / Patient Assessment
5. After completing packaging on a long spine board, what assessment must be performed and documented?
Trauma / EMS Operations
6. A patient is found in a narrow hallway lying on their side after a fall. The team wants to move them to a long spine board but there is not enough room to log-roll. Which device is best suited for this situation?
Trauma / Patient Safety
7. You are applying a rigid cervical collar to a patient with a suspected cervical injury when the patient reports increased pain and tingling in both arms as you begin to move the head toward neutral. What should you do?
Trauma / NREMT Psychomotor
8. On the NREMT spinal motion restriction psychomotor skill station, a student applies the collar correctly but then releases MILS to help slide the long spine board into position before head blocks are placed. What is the consequence?
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