This document outlines criteria for acceptable reduction of forearm fractures, including considerations like angular/rotational deformities, age, and location of the fracture. For patients under 9 years old, complete displacement or angulation under 15 degrees and malrotation under 45 degrees are considered acceptable. For older patients, malrotation under 30 degrees and angulation under 10-15 degrees depending on fracture location are acceptable. Complete bayonet apposition may also be acceptable if certain criteria are met. Rockwood and Wilkins provide additional guidelines for acceptable angulation based on fracture location.

1. Criteria for acceptable
reduction of forearm fractures
Dr.Sintayehu GSR1

2. What to consider
• Angular/rotational deformities
• Age
• Distance from phsis
• Direction of angulation
• Interosseous space

3. Acceptable reduction
• No deviation of ulna and radius toward each other
• No encroachment of interosseous space
• Patient age <9yrs: in fractures at any level
.complete displacement
. 15degrees of angulation
.45degrees of malrotation
• Age 9yrs or more :
.30degrees of malrotation
.10degrees of angulation for proximal fractures
.15degrees of angulation for distal fractures
.complete bayonet apposition if angulation<20degrees and 2yrs of growth remains
J Am Acad Orthop Surg 1998;6-146-156

4. Rockwood and wilkins
• Acceptable limit of angulation
20 degrees in distal 1/3rd RU fractures
15 degrees in midshaft fractures
10 degrees in proximal 1/3rd fractures
100% translation if shortening is <1cm