Clavicle fracture is a common injury in all age groups. We reviewed the cases of 273 patients over 15 years of age with a clavicle fracture for last 7 years. We had analyzed factors that act on healing of clavicle fractures with SPSS/PC statistics program using IBM/AT computer. Inluries can be classified into two groups. Bed rest group includes patients who were on the bed over 2 weeks, and active group (64.8% of patients) includes the patients who rested on the bed for less than 2 weeks.

The results aie followed

1. The most affecting factor on union of clavicle fracture was prolonged period of bed rest for more than 2 weeks followed by degree of separation of fragments. But degree of comminution had relatively very low correlation ratio in all patients and all groups. Average union period of all patients was 8.34 ± 2.87 weeks.

2. In bed rest group. degree of separation was the most harmful factor on union. And average union period of this group was 10.58 ± 2.73 weeks.

3. In active group, factors of age and degree of separation had high correlation ratio on union period. Average union period of this group was 7.13 ± 2.12 weeks.

It was concluded that the most harmful factor on union of fracture was the duration of bed rest and degree of separation of fragment. We thought that the short period of bed rest as possible and acceptable reduction and its maintenance of separated fragements, were important factors in the treatment of clavicle fracture.