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FLEXIBLE INTRAMEDULLARY NAILING IN UNSTABLE FOREARM FRACTURES IN CHILDREN



Abstract

This paper presents the results of forearm fractures in twenty children treated with flexible intramedullary nailing, over a period of 3 yrs.

Forearm fractures in children are an extremely common injury and excellent results are obtained in the majority of cases by closed reduction and plaster immobilisation. If adequate reduction cannot be achieved or maintained by conservative means or if it fails, some form of internal fixation will be required. Flexible nails are an extremely effective way for addressing this problem.

Twenty children had flexible intramedullary nailing done following forearm fractures over a 3-year period from 1997–2000 [failed reduction (10), unstable post MUA(3), slipped in plaster(6) and open fractures(1)]. There were 15 male and 5 female patients, the mean age being 10. 9. The nature of the injury were radial neck (3); proximal radius (1), galeazzi (1) and both bone fractures (15). Nine patients had closed nailing, while 11 required a mini open approach of which, 5 needed exposure only on one side. Patients were protected post surgery until signs of union were seen. The patients had regular clinical and radiological assessment and nails were removed on an average of 6–8 months, though in patients with radial neck fractures it was removed much earlier [4–5 weeks].

All patients went on to full bony union in excellent position, the average time to union being 5. 8 weeks. All but one patient regained full prono-supination, elbow and wrist motion, though none had any functional disability. There were a few minor complications especially following implant removal, including superficial wound infections (3), transient hypoasthesia in the distribution of the superficial radial nerve (2) and one patient in whom one nail had to be left behind as it could not be removed. There were no long-term sequelae.

Several methods of internal fixation are available, and the very diversity of choice demonstrates the lack of an ideal solution. K-wires are not applicable at all levels and plates have the disadvantage that they require extensive exposure of the fracture site. Removal of the plates is just as, if not more, fraught with complications.

Flexible nails can often be inserted closed, leave cosmetically more acceptable scars, provide excellent alignment of the fracture and can be removed easily without requiring any postoperative immobilisation. In our opinion it should be considered as the method of choice in treating forearm fractures in children, when some form of internal fixation is required.

The abstracts were prepared by Mr Simon Donell. Correspondence should be addressed to him at the Department of Orthopaedics, Norfolk & Norwich Hospital, Level 4, Centre Block, Colney Lane, Norwich NR4 7UY, United Kingdom