Fractures of the bilateral distal radius and scaphoid: a case report
© Ozkan et al; licensee BioMed Central Ltd. 2008
Received: 25 November 2007
Accepted: 29 March 2008
Published: 29 March 2008
Bilateral fractures of the distal radius and scaphoid are extremely rare injuries.
A patient with bilateral comminuted, displaced distal fractures of the radius and bilateral fractures of the scaphoid was treated via internal fixation of the scaphoid fractures with Herbert screws and internal fixation of the distal radius fractures with locked volar plating.
Rigid internal fixation of distal radius and scaphoid fractures is mandatory to start early active rehabilitation of the wrist without the need for wrist immobilization with a plaster or external skeletal fixation.
Bilateral fractures of the distal radius and scaphoid are extremely rare injuries. In fact, we have found only one case reported in the English language medical literature; the patient had been treated using plaster immobilization . In this paper, we report the case of a young man who sustained high-energy, unstable, displaced distal radius fractures along with displaced scaphoid fractures. The latter were treated with Herbert screw fixation and the former with locked volar plates. The purpose of this paper is to report the operative technique used to ensure that early wrist rehabilitation program could be started in this unusual case.
The patient also sustained an anterior compression fracture of the L1 vertebrae. Open reduction of the intra-articular distal radius fractures and scaphoid fractures was performed under general anesthesia. A dissection was made between the flexor carpi radialis and palmaris longus tendons, and it was extended 3 cm distal to the wrist flexion crease to expose the scaphoid. The flexor pollicis longus tendon was retracted in the direction of the radius, while the median nerve and other tendons were retracted in the direction of the ulna, revealing the pronator quadratus. Next, the distal and radial borders of the pronator quadratus were raised and retracted in the direction of the ulna to expose the distal radius. First, the scaphoid fracture was fixed with a Herbert screw; next, open reduction of the distal radius was performed with the aid of intrafocal leverage achieved via elevation, traction, and fixation using temporary Kirschner wires. The entry site for the Herbert screw at the distal pole of the left scaphoid was comminuted, and to gain stable screw purchase, the Herbert screw was inserted from the palmar proximal toward the dorsal distal, which is a relatively infrequent procedure. No cast immobilization or bracing was used after the surgery. The patient began passive and active range of motion exercises immediately.
Ipsilateral fractures of the distal radius and scaphoid are common injuries; however, thus far, there is only one reported case of bilateral fractures of the distal radius and scaphoid and in that case the patient was treated using plaster immobilization. Conservative management like cast immobilization may be applied in children but reduction maneuvers for distal radial fractures should be done carefully to avoid displacement of the scaphoid fracture [2, 3]. Although the presence of displaced scaphoid and radius fractures in adults as in our case is an indication for operative treatment, keeping in mind that traction would be applied to the carpus to treat an unstable distal radial fracture, the presence of even an undisplaced scaphoid fracture with a displaced distal radius fracture is an indication for internal fixation of the scaphoid . The three main management methods for unstable distal radial fractures are external fixation, dorsal plating, and volar plating .
The volar approach is advantageous to dorsal dissection, which may lead to inadequate blood supply to the dorsal metaphyseal area of the radius, can be avoided; further, this approach causes fewer problems related to the soft tissue and tendons [5, 6]. The locked compression plate uses threaded screws that lock into the plate holes when tightened; this provides angular and axial stability with minimal possibility of screw loosening. In addition, these volar locking compression plates have significant strength advantages over those used in dorsal plating [5–7].
High-energy traumas to the hand and wrist can result in ipsilateral and even bilateral fractures of the radius and scaphoid, and initiation of an early rehabilitation program requires rigid fixation of both these fractures. Volar locking plating of distal radius fractures and Herbert screw fixation of scaphoid fractures allow this rigid fixation but primary definitive fixation of the scaphoid, as in our case, does not allow for correction of a malalignment of the carpus following the reduction of the distal radius; therefore, temporary K-wire fixation of the scaphoid is recommended as the first step, following which screwing is done after the fixation of the distal radius, especially in the case of a preoperative carpus malalignment.
Written informed consent was obtained from the patient for publication of the study and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.
No funding has been received for the study.
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