Seven‑year follow‑up for malrotation of a radial diaphysis fracture in a child corrected by osteotomy for loss of motion: A case report
- Jun Komatsu
- Nana Nagura
- Atsuhiko Mogami
- Hideaki Iwase
- Kazuo Kaneko
Affiliations: Department of Medicine for Motor Organs, Juntendo University Graduate School of Medicine, Bunkyo‑ku, Tokyo 113‑8421, Japan, Department of Orthopaedic Surgery, Juntendo University Shizuoka Hospital, Izunokuni, Shizuoka 410‑2295, Japan, Department of Bio‑Engineering, Juntendo University Institute of Casualty Center, Izunokuni, Shizuoka 410‑2295, Japan
- Published online on: August 20, 2019 https://doi.org/10.3892/etm.2019.7932
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A greenstick fracture is an incomplete fracture where the compressive side of the cortex is still intact but plastically deformed. The incidence of poor results following the closed treatment of greenstick fractures in children >10 years of age is seriously underestimated. Therefore, fixing the position of the forearm is important for initial treatment. In cases of greenstick fracture, the possibility of inadequate remodeling of angulated deformities during growth, and in particular, the lack of correction between rotational malalignment and growth when the diaphyseal forearm is involved in the fracture, should be considered. A male, 10‑year‑old, left hand‑dominant, Asian patient fell while playing in the garden and was immediately assessed by an orthopedic doctor at an Emergency Orthopaedic Clinic. Initial examination revealed a deformity of his dominant left forearm and an angulated greenstick fracture of the radius. However, after 3 months, he developed loss of supination of his left forearm and complained of limitation of left forearm supination. Radiography demonstrated a volar angulation of 20˚. The patient underwent open reduction, internal fixation and 10˚ bending with a plate for correction without corrective rotation. At 12 months after injury, the patient did not exhibit pain or limitation of the elbow and wrist. After follow‑up for 7 years, the patient was able to perform normal day‑to‑day activities with no adverse symptoms. The present case indicated that corrective osteotomy is required following the loss of supination after a greenstick fracture of the diaphysis of the radius. The patient of the current study exhibited rotation due to the central band of the interosseous membrane. In the treatment of greenstick fractures, a radius apex angulation of 20˚ must be corrected via osteotomy due to loss of rotation. The present case indicated that corrective osteotomy of the radius apex alone without rotational correction, in combination with plate bending improved the loss of forearm rotation.