Straps for easy removal

The splint's straps make donning and doffing for therapy and wound care easy.

Anatomical contour

The anatomical contours are the backbone of the splint's superior fit.

Deep heal pocket

The expanded heel pocket supports deep heal relief.

Malleable alloy shell

The splint's hospital-grade alloy shell is malleable for optimal fit yet rigid enough be be highly durable.

Functional ankle position

The functional ankle position reduces the risk of stiffness and speeds healing.


Level 1 Trauma Orthopaedic Trauma

  • Open fractures
  • Closed fractures
  • Wounds
  • Fasciotomy / Flap
  • Nerve injuries

Orthopaedic Fracture Stabilization

  • Calcaneal
  • Pilon / Talar
  • Tibia / Fibular
  • Ankle
  • Distal femur
  • Tibial plateau
  • Complex knee

Plastics / Burns

  • Grafts
  • Wounds
  • Fasciotomy / Flap

General and Vascular Surgery

  • Multiple trauma
  • Wounds
  • PVD / Diabetes


  • Contracture prevention: TBI, CVA, SCI

General Orthopaedics

  • Hindfoot injuries
  • Forefoot injuries
  • Plantar fasciitis
  • Heel spurs
  • Tibia / Fibular fractures


  1. Allow for a hand’s width between back of knee and top of splint.
  2. Toes should not extend over the splint.
  3. The splint must allow full knee flexion.
  4. DO NOT OVERTIGHTEN the straps. There should be space for a finger to slide between the skin or dressing and the strap pad.
Calf length
Unisex Shoe size
100 / 2100
Extra Large
20” – 23”
6’1½” and taller
13 and larger
101 / 2101
18” – 20”
5’10” – 6’1”
10 – 12.5
102 / 2102
16” – 18”
5’5” – 5’9½”
7 – 9.5
103 / 2103
14” – 16”
5’ – 5’4½”
5 – 7
12½” – 14”
3’5” – 5’
3 – 5
9” – 12”
5” – 8”

Customization and Use

How to Customize the Seattle Splint

The Seattle Splint’s malleable alloy shell allows practitioners to form the splint to fit each patient. The sides of the splint, the ankle width, and angle of the splint can be modified without tools.

Our orthoses are professional products designed to be custom fit by knowledgeable practitioners. In addition to the information here, we gladly provide training and support as needed via video conferencing.

Request a live video demonstration

Conform to the Calf

While the Seattle Splint is on the patient, cradle the back of the splint in your hands and squeeze the sides together to narrow and form the splint around the calf.

Adjust the Calf Width

Place the back of the Seattle Splint against your chest for support as you spread the splint’s sides to the desired calf width.

Adjust the Ankle Width and Angle

Position the Seattle Splint over the back of a chair and push down above, and then below the weld line to adjust the splint’s ankle width or increase dorsiflexion by up to 5°. Never push directly on the weld line.


Place foot flat against the foot plate.

Gently, yet firmly, push down at the anterior ankle to slide the foot down into the splint at a neutral position.


First, cross the padded ankle strap over the ankle to buckle.

Slide the bar of the slide buckle into the hook buckle.

Pull on the strap to tighten.
A finger should easily slide under the pad.

Cross the second ankle strap over the pad. Buckle. Bring the padded shin strap across the tibia and buckle.


To Hook

1. Straight bar goes into hook.

2. Pull strap end to tighten.

To Release

1. Pull strap end over buckle.

2. Push thumb under strap behind buckle and turn bar out of hook.

Patient Instructions

The patient instructions are a printable document for practitioners to use when sending a patient home with a Seattle Splint. This document explains how to put on and remove the splint, how to use the buckles, how to properly take care of the splint, and a section for practitioners to fill out wear schedule and instructions.

Download Patient Instructions

Optional Components

Thigh Extension

The thigh extension attaches to any adult-sized Seattle Splint, converting it to a Seattle Long Leg. When accurately sized to a splint, the knee is positioned at 0°. Strategically placed movable straps provide counterforce while relieving circumferential pressure. The converted Seattle Splint allows easy access for dressing changes, wound care, arterial monitoring and therapy.

Shown: a Seattle Long Leg

Trauma Indications

  • Fractures
  • Complex knees
  • Wounds
  • Fasciotomy / Flap / Grafts
  • Nerve injuries

Anterior Shell

The Anterior Shell provides counterforce and support to ensure a neutral position of the ankle in cases of deformity or high tone. The shell distributes pressure to prevent further complications in patients with pitting edema or fragile skin.

EF Series

The EF Series is designed exclusively for patients with distal tibia/pilon/calcaneal external fixation.

Additional Components

Replacement Liners and Replacement Pads