J Korean Orthop Assoc.  2010 Dec;45(6):448-455. 10.4055/jkoa.2010.45.6.448.

Minimally Invasive Plate Osteosynthesis of Proximal, Middle and Distal Humerus Fractures

  • 1Department of Orthopaedic Surgery, Ewha Womans University College of Medicine, Korea.
  • 2Department of Orthopaedic Surgery, National Medical Center, Seoul, Korea. shs8383@hanmail.net


The purpose of this study is to evaluate the clinical and radiological outcomes of proximal, middle and distal third humeral fractures treated with the minimally invasive plate osteosynthesis (MIPO).
Thirty-one patients with the proximal, middle or distal third humeral fractures underwent MIPO. There were 12 men and 19 women with an average age of 46.7 years. The radiological outcomes of bony union and anatomical reduction were evaluated. The clinical outcomes were assessed by measuring the range of shoulder and elbow motion, UCLA scores, KSS sores and the postoperative complications.
Fracture union was obtained in all patients at an average of 18.4 weeks. According to the UCLA scores, 9 were excellent and 3 were good for the proximal humeral fractures. For the middle and distal third fractures, UCLA scoring system showed excellent results in 15 cases and good results in 4 cases. The average KSS scores of proximal and shaft fracture were 92.5 and 98.6, respectively. Complications developed in 3 patients: one had radial nerve palsy, one had a fracture adjacent to the plate distally, and one had a rotational deformity.
MIPO for proximal, middle and distal third humeral fractures provided satisfactory clinical and radiological outcomes considering high union rate and minor complications.


humeral fractures; minimally invasive plate osteosynthesis
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