Fractures of lateral condyle of humerus occur almostly in childhood and complications such as non-union, malunion, occur commonly in displaced fractures of lateral hum-eral condyle which were not reducted anatomically. But, such complications and foll-owed problems were prevcntable by early accurate open or closed anatomicalr reduction.
Also open reduction and internal fixation with screw, k-wire cat-gut suture or pi n have been recommened as best method by many surgeons on displaced fractures of lateral condyle of humerus.
We were carried out surgical treatment of open reduction and interal fixation on 25 cases of displaced lateral condyle fractures of humerus and followed l8cases from Jan, 1968 to Dec. 1975 at department of orthopedic surgery , Chung-Nam National University Hospital and results were observed as follows.
1. of the 18 cases, the frequency was high in male as 13 males and 5 females, and were founded in the age of 3 to 15 years.
2. of the 18 cases, the causes of trauma were sliding down in 12 cases and fall f-rom height in 4 cases.
.3. Milch´s type I fracturs were founded in 4 cases and type II fractures in 14 cases. Also right side was affected more than left side.
4. Duration between trauma and treatment were 4 weeks in 13 cases and 3 months over in 2 cases
5. 9cases were unioned normally in accurately reducted 11 cases and of poorly re ducted 7 cases, 6 cases were revealed poor results.
6. Average duration of cast immobilization were 6 to 9 weeks,.
7. Average follow-up length were 34 months.
8. of normally unioned 11 cases, 9 cases received treatment before 4 weeks after trauma.
9. of 18 cases, 11 cases were gained full range of motion, and 2 cases were revealed over 10 degrees limitation of flexion and extension.
10. Surgical complications were nonunions in 5 cases, malunions in 2 cases, lump oven lateral condyle in 5 cases, tardy ulnar nerve palsy in 3 cases and wound inf-ection in 1 case.
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