J Korean Fract Soc.  2013 Oct;26(4):261-267. 10.12671/jkfs.2013.26.4.261.

Results of Treatment for Medial Condyle Fracture of the Distal Humerus in Children

• Kang JH
• Yang SH
• Lim KP
• Kim HT

• KMID: 2183826
• DOI: http://doi.org/10.12671/jkfs.2013.26.4.261

Abstract

PURPOSE
We evaluated outcomes of treatment in medial condyle fracture of the distal humerus in children.
MATERIALS AND METHODS
Seven patients (4 females, 3 males) who were treated at the Pusan National University Hospital and followed-up until skeletal maturity after treatment were included. The average age at the time of fracture was 4.6 years (range, 2 to 10 years). Treatment was performed from 1 day to 6 months after the fracture: 4 patients underwent a surgical treatment for 17 days, 2 months, 2 months and 6 months after fracture, respectively. All fractures were Milch type 1. Five patients had Kilfoyle type 3, and two patients had type 2 fractures. Final outcomes were evaluated by the Mayo elbow performance score and carrying angle.
RESULTS
There were 3 excellent, 3 good and 1 fair result at the final follow-up. There was no elbow pain in any of the patients. One of the four patients who underwent a late surgical treatment received corrective osteotomy due to cubitus varus. All four patients had a limitation of elbow motion. The other three patients who had accurate diagnosis and treatment had a full range of motion.
CONCLUSION
Diagnosis of medial condyle fracture of the distal humerus based on plain radiograph is difficult in children due to its cartilaginous structures. When a patient shows pain, tenderness and swelling on the medial side of the elbow, an additional examination with magnetic resonance imaging may be required even if no fracture line is found in the radiograph. Accurate diagnosis and early treatment is important for good results.

Keyword

Distal humerus; Medial condylar fracture

MeSH Terms

Child*
Elbow
Female
Follow-Up Studies
Humans
Humerus*
Lifting
Magnetic Resonance Imaging
Osteotomy

Figure

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  Fig. 1 (A) A 3-year-old girl had trauma in the left elbow which was misdiagnosed as a sprain, and was treated with a splint (Case 2). (B) However, a radiograph taken 17 days after the trauma revealed a medial condyle fracture of the distal humerus (white arrow: scattered calcification in the medial condyle).

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  Fig. 2 Magnetic resonance imaging showed a displaced medial condyle fracture (white arrow) with rotation (Kilfoyle type 3).

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  Fig. 3 Arthrogram confirmed a medial condyle fracture (white arrow) with rotation (Kilfoyle type 3).

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  Fig. 4 Reduction of the fragment and internal fixation with K-wire was performed with a careful dissection of soft tissues from the fragment to preserve blood supply from flexor muscle group. Anteroposterior radiograph taken 3 months after surgery showed an irregular margin of medial side of the distal humerus with an ossification center of medial epicondyle.

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  Fig. 5 Anteroposterior radiographs of both elbows taken 4 years after surgery (when the patient was 7 years old) showed deformity of the distal humerus in the left elbow.

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  Fig. 6 Anteroposterior radiographs of both elbows taken 13 years after surgery (when the patient was 16 years old) showed undergrowth of trochlea on the affected side. At the latest follow-up, her elbow performance score in the left side was 94 (excellent) with a slight limitation of motion (0-130°). Five degrees difference of carrying angle from the normal side was noticed.

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