Introduction: Baseball finger is a deformity caused by injury to the extensor mechanism of the distal phalanx. Rehabilitation is the initial choice for the treatment of baseball finger. The aim of this study was to compare the three-point pressure splint designed by researchers and aluminum splint routinely used baseball finger treatment, while performing activities of daily living and the lack of improvement was the extension. The study is in the field of rehabilitation for patients with baseball finger.
Methodology: This study is quasi-experimental study in which 20 patients with baseball finger were made, on average, 44 years of age. In this study the splint three points pressure designed by the researcher and aluminum splint common in the treatment of baseball finger randomly placed available of people with baseball fingers and change the extension of the deficit compared to six and first week and the third week in performing activities of daily living performance while using the splint was evaluated by QUICK DASH test.
Results: Studies show that between two groups in terms of the performance of activities of daily living in the third week there is a significant difference (t=-3/824, P<0.001) in the extensions lag also significant differences between the two groups in the first week there was no significant (t=-1/153, P> 0.280), while statistically significant difference between the two groups after 6 weeks have to improve extension lag (t=-2.762, P=0.006).

Conclusion:
The results showed that three point’s pressure splint designed by the researchers compared the aluminum splint greater impact on the lack of extension and everyday activities.