J Korean Fract Soc.  2019 Oct;32(4):204-210. 10.12671/jkfs.2019.32.4.204.

Use of Miniplate for Severe Comminuted Metadiaphyseal Fractures of the Distal Radius

• Baek JR
• Yoon YC
• Baek SH

• KMID: 2468683
• DOI: http://doi.org/10.12671/jkfs.2019.32.4.204

Abstract

PURPOSE
This study investigated the clinical and radiological outcomes of patients undergoing provisional fixation in conjunction with locking plate fixation. Miniplates were used as the reduction plates for the surgical treatment of severe comminuted metadiaphyseal fractures with an intra-articular fracture of the distal radius.
MATERIALS AND METHODS
The radial length, radial inclination, volar tilt, and radial intra-articular step-off were measured preoperatively, postoperatively, and at one year after surgery in 12 patients (eight males, four females, mean age 55.4 years old). The patients underwent volar locking plate fixation with miniplate as a reduction plate for severe comminuted metadiaphyseal fractures with an intra-articular fracture of the distal radius. Clinical evaluations were conducted using the modified Mayo wrist score (MMWS).
RESULTS
Bone union was achieved in all cases. The mean MMWS was 81.8 points, including two excellent, three good, and seven fair cases. Radiological improvements were observed in the average radial length (preoperative, 6.4 mm; postoperative, 11.8 mm), average radial inclination (10.2° to 22.4°), average volar tilt (−4.5° to 10.6°), and average radial intra-articular step-off (4.8-0.8 mm) (all, p<0.05). Radiographic measurements obtained immediately after surgery and at the final follow-up revealed insignificant decreases in radial length (0.6 mm), radial inclination (0.4°), and volar tilt (0.9°) (all, p>0.05).
CONCLUSION
Miniplate fixation can be an effective treatment option as a reduction plate for the treatment of distal radial fractures, which is challenging to reduce and maintain due to severely comminuted metadiaphysis fractures with the intra-articular fracture.

Keyword

Distal radius fracture; Metadiaphyseal fracture; Comminuted fractures; Fracture reduction; Miniplate

MeSH Terms

Female
Follow-Up Studies
Fractures, Comminuted
Humans
Intra-Articular Fractures
Male
Radius*
Wrist

Figure

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  Fig. 1. A 55-year-old male (patient No. 8) visited the emergency room with a distal radial fracture due to a 2-m fall. (A) Preoperative computed tomography allowed the numbering of each fragment. (B) Following the anterior Henry approach, (C) fragments 1 and 5 were reduced using 1.5-mm miniplates for radial height restoration, and (D) fragments 4 and 5 were reduced using 2.0-mm miniplates.

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  Fig. 2. Intraoperative image obtained using an image intensifier. (A, B) Miniplate was used as a reduction plate. (C) Volar locking plate was used as a definitive fixation plate.

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  Fig. 3. (A) Anteroposterior and (B) lateral radiographs, (C) clinical image, and (D) computed tomography image of the wrist of a 59-year-old male (patient No. 11) with a metadiaphyseal comminuted distal radial open fracture (Gustilo–Anderson classification IIIA) due to a crush injury. The associated injuries include metacarpal fractures 3, 4, and 5 and an ulnar styloid process fracture.

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  Fig. 4. Meticulous debridement and irrigation were performed on the day of admission, and an external fixator was applied to the fracture site. (A) Two weeks later, definitive surgery was performed when the soft tissue was healed and infection is not evident. (B) Secure surgical fixation of the small metadiaphyseal comminuted fragments involves the use of a miniplate, (C) image intensifier confirmation, and (D) fixation using a definitive plate.

Reference

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