A broken thumb needs medical attention. The thumb contains two bones, the distal and the proximal phalange, that align in the thumb and are surrounded by soft tissue. Swelling occurs at the onset of an injury and may interfere with setting the bone. A proper splint needs to be applied to the thumb by an orthopedic surgeon to keep the thumb stable so it is fully immobilized during the healing process.
Step 1
Place a thumb spica splint on the broken thumb to immobilize it during healing. The splint is often used instead of a cast because it allows for swelling to reduce over time after the injury, explains eMedicine.com.
Step 2
Position the hand so that the thumb is facing upward and in a relaxed position. The hand should be resting on its outer side.
Step 3
Wrap the thumb and hand in soft padding, starting at the tip of the thumb. Work your way up the thumb and include the hand below the base of the other fingers. Wrap a double thickness of cotton batting around the hand and bring it up the arm half way. Put enough padding on bony places to protect against pressure from the splint.
Step 4
Measure the plaster strips to fit from the tip of the thumb to the middle of the forearm. Wet the plaster with hot water and squeeze out excess water to mold the plaster.
Step 5
Apply the wet plaster and gently mold it to fit around the thumb and up the inner side of the arm. Wrap the plaster carefully around the end of the thumb so it doesn't leave sharp edges protruding from the end.
Step 6
Cover the spica splint with a layer of 2-inch-wide gauze or web roll, wrapping it carefully around the splint from the end of the thumb to the top end of the splint on the arm. This will help secure the splint to the arm. Use medical tape to hold the ends together so they don't unravel.
Step 7
Cover the splint and gauze with a layer of elastic wrap securely wrapped around the hand arm. It should be secure but not so tight as to cause problems with circulation.
Step 8
Allow the arm to rest on the side opposite the thumb for about 10 to 15 minutes to allow the splint to harden.
Tips and Warnings
- Seek medical attention as soon as possible after breaking a bone in the hand, advises the American Academy of Orthopedic Surgeons. Get an X-ray to assess the extent of the injury. A severe injury may require surgery. Wear the splint for two to six weeks according to the directions you receive from your doctor, recommends the American Academy of Orthopedic Surgeons. Use a sling to support your arm initially after breaking your thumb. This helps you to remember it's broken and protects it from knocking into things. Get physical therapy after removing the splint to regain a full range of motion for your thumb.
- Don't try to align or set you own thumb after breaking it, as it can cause additional damage.
Things You'll Need
- Thumb spica splint
- Web roll padding
- 2-inch gauze roll
- Plaster strips
- Elastic compression bandage
