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Sizing Splints

How to Determine Thumb Splint Size

Use A and B measurements to determine which size splint you should order.

 

 


Sizing Kits are recommended for Occupational Therapists. They are the best way to accurately prescribe which size splint a patient should order. Click Here to order a McKie Splint Sizing Kit.

1. Measurement A

Measure to the 1/10th of a centimeter the circumference of the far or distal thumb joint.

2. Measurement B

Measure to the 1/10th of a centimeter the distance on the palm from the distal thumb joint to the center of the wrist crease.

3. Measurement F (only used for custom splints)

Measure from the distal thumb crease to the bottom of the web space.

4. Refer to Chart

On the appropriate chart (see links below), find the square where Measurement A and Measurement B meet. The square should fall within a bold area corresponding to the correct size. If Neonatal use only Measurement A an Neonatal Sizing and refer to the neonatal chart for neonatal sizing.

Example: If Measurement A = 5.2 centimeters and Measurement B = 6.0 centimeters, then splint size = P5


5. Record Sizes

Note splint size and left or right hand, as this is required when ordering. If ordering offline, the catalog # for the above example would be P5-L (left hand) or P5-R (right hand).

To assure the best fit, use of a sizing kit is recommended. If a sizing kit is unavailable, follow the directions above. Neonatal sizes are suitable for very small or prematurely born infants. Pediatric sizes are suitable for children from about 3 months to 6-10 years. Older children and adults need adult sizes. When figuring sizes, it is important to use a centimeter tape measure.

 


How to Determine Supinator Size

When figuring sizes, it is important to use a centimeter tape measure. All supinator straps may be shortened.
  • X-Small (7/8 inch x 15 inches) straps are typically needed by infants.
  • Small (1 inch x 18 inches) straps fit toddlers through about 6 years. 
  • Medium (1 1⁄2 inches x 24 inches) straps fit larger children, young teens and smaller adults. 
  • Large (2 inches x 30 inches) straps fits most adults and older teens.



      Need Custom Sizing?

      When hand sizes fall outside the standard sizes provided, you may call or choose the custom options when ordering. To order a custom size we will need measurements A, B & F. Select or specify whether you need a longer strap, larger thumb piece or added reinforcement at the web space. Custom cut longer, larger supinator straps are also available.

       



      How to Determine Allyson Wrist Hand Splint Size

      This custom wrist-hand orthosis is sewn from the same washable, 1.5mm nylon-covered neoprene as our thumb splints and supinator straps. The strapping system and design of the Allyson splint counter ulnar deviation and provide support at the wrist and thumb. The pocket of the palm side holds a removable, molded plastic stay to support wrist extension.

      • Replacement thermoplastic stays are available for purchase by contacting us.
      • A custom wrist-hand orthosis
      • Available in sizes ranging from neonatal to large adult.
      • Stream-lined design that dynamically promotes wrist extension and thumb opposition.
      • Ulnar strapping diminishes ulnar deviation.
      • Made from 1.5 mm washable nylon-covered neoprene
      • The smooth side nylon is worn against the skin and the outer looped nylon fabric is receptive to hook tape, thus allowing considerable adaptability when attaching the  strapping.
      • Latex free and available in 6 colors
      • Removable, moldable low temperature plastic stay that crosses the wrist on the palm side and supports wrist extension
      • Additional custom options include web stay patch (you apply) and ulnar stay.

       

       

      Sized to Your Specifications:

      1) Record measurements in millimeters.

      2) Include a photocopy, scan or accurate line drawing of the palm of your hand with your order.

      **Submit "A", "B", "C", "D", "E" and "F" measurements listed below. 

      Please see our Allyson Splint Sizing Page from more information.


      Sizing Charts

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