Journal List > J Korean Fract Soc > v.25(4) > 1037894

Oh, Choo, Lee, and Seo: Minimally Invasive Plate Osteosynthesis for Humeral Proximal or Distal Shaft Fractures Using a 3.5/5.0 Metaphyseal Locking Plate

Abstract

Purpose

Our study aimed to investigate the clinical and radiological results of humerus proximal or distal shaft fractures treated with minimally invasive plate osteosynthesis (MIPO) using a 3.5/5.0 metaphyseal locking plate.

Materials and Methods

We reviewed the clinical and radiographic records of 17 patients with humeral proximal or distal shaft fractures who had undergone 3.5/5.0 metaphyseal locking plate osteosynthesis with a minimally invasive technique. We evaluated the results with respect to the anatomical reduction and union of the humerus shaft fracture through radiologic studies. We also evaluated the clinical results using the motion of shoulder and elbow functional outcome, American Shoulder and Elbow Surgeons (ASES) score, Mayo elbow performance score (MEPS), and postoperative complications.

Results

Complete union was achieved in all cases. The mean union time was 14.2 weeks. According to the functional outcome rated by the ASES score and MEPS, 15 cases were considered excellent and 2 cases were good. There were no cases of surgically-related complications like metal failure, loss of anatomical reduction, or postoperative nerve injuries.

Conclusion

Using a 5.0 metaphyseal locking plate for humerus shaft fracture has the limitation that difficulties can arise in achieving sufficient screw fixation for small bony fragments. The 3.5/5.0 metaphyseal locking plate used in MIPO for humerus 1/3 proximal or distal shaft fractures was concluded to give good clinical and radiologic results.

Figures and Tables

Fig. 1
(A) Case of distal humeral shaft fracture of a 21-year-old man. Preoperative radiographs show distal humeral shaft fracture with a butterfly fragment.
(B) Minimally invasive plate osteosynthesis using 3.5/5.0 locking compression plate was performed. The short distal fragment was fixed with five 3.5 mm screws.
(C) Last follow-up radiographs show solid bony union without screw loosening.
jkfs-25-305-g001
Fig. 2
(A) Case of proximal humeral shaft fracture of a 44-year-old woman. Preoperative radiographs show proximal humeral shaft fracture with a butterfly fragment.
(B) Minimally invasive plate osteosynthesis using 3.5/5.0 locking compression plate was performed. The short proximal fragment was fixed with five 3.5 mm screws.
(C) Last follow-up radiographs show solid bony union without screw loosening.
jkfs-25-305-g002

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