Excessive splint laxity may permit inappropriate movement of the injury, and, in cases of fractures, this may result in loss of bony reduction. If a splint is a definitive therapy, there must be a stable injury pattern. 3. splint bone; in veterinary anatomy, refers to the vestigial second and fourth metacarpal and metatarsal bones of horses that are closely apposed to the third metacarpal or metatarsal by a periosteum anchor. Customers find the wrist splint to be of good quality and effective for pain relief, particularly for carpal tunnel syndrome, with one customer reporting 80% pain relief in one use. The brace provides good support and is worth the price, with customers finding it very useful. Comfort and fit receive mixed feedback - while some find it comfortable and well-fitting, others report discomfort and find it too tight. The size receives negative feedback, with several customers noting it runs small. Learn what a splint is, how it differs from a cast, and what kinds of splints are available for different injuries. Find out how to make a splint at home in an emergency and when to see a doctor.