Open reduction and internal fixation (ORIF) of ankle fractures is associated with well known complications including wound dehiscence and infection, construct failure and symptomatic metalwork. A technique of intramedullary fibular nailing has been developed that requires only minimal incisions, is biomechanically stronger than ORIF and has low-profile hardware. We hypothesized that fibular nailing would result in a rate of reduction and union comparable to ORIF, with a reduced rate of wound and hardware problems.

100 patients over the age of 65 years with unstable ankle fractures requiring fixation were randomised to undergo fibular nailing or ORIF. Outcome measures assessed over the 12 postoperative months were wound complications, accuracy of reduction, Olerud and Molander score (OMS), and total cost of treatment.

The mean age was 74 years (range 65–93) and 75 patients were women, all had some form of comorbidity. Significantly fewer wound infections occurred in the fibular nail group (p=0.002). Eight patients (16%) in the ORIF group developed lateral-sided wound infections, two of these developed a wound dehiscence requiring further surgical intervention. No infections or wound problems occurred in the fibular nail group and at 1 year patients were significantly happier with the condition of their scar (p=0.02), and had slightly better OMS scores (p=ns). The overall cost of treatment in the fibular nail group was less despite the higher initial cost of the implant.

The fibular nail allows accurate reduction and secure fixation of ankle fractures with a significantly reduced rate of soft-tissue complications when compared with ORIF.

Lateral malleolar plating is associated with complication rates of up to 30%. The fibular nail is an alternative fixation technique, requiring a minimal incision and tissue dissection, with the potential to reduce the incidence of complications. We reviewed our results of 105 unstable ankle fractures fixed with the Acumed fibular nail between 2002 and 2010. The mean age was 65 years and 72% of patients had significant systemic medical comorbidities.

A number of different locking screw configurations were assessed over the study period. A proximal blocking screw resulted in satisfactory stability in 93%, single locking screws in 86%, but nailing without locking in only 66%, leading to the development of our current technique. Of the twenty-one patients treated with this technique there have been no significant complications, and only two superficial wound infections. Good fracture reduction was achieved in all of these patients. The mean physical component SF12, Olerud and Molander and Foot and Ankle Outcome scores were 46, 65 and 83 respectively.

The outcomes of unstable ankle fractures managed with the fibular nail are encouraging, with good radiographic and functional outcomes and minimal complications. This technique should be considered in the management of debilitated patients with unstable ankle fractures.

Techniques for fixation of the lateral malleolus have remained essentially unchanged since the 1960s, but are associated with complication rates of up to 30%. The fibular nail is an alternative method of fixation requiring a minimal incision and tissue dissection, and has the potential to reduce complications.

We reviewed the results of 105 patients with unstable fractures of the ankle that were fixed between 2002 and 2010 using the Acumed fibular nail. The mean age of the patients was 64.8 years (22 to 95), and 80 (76%) had significant systemic medical comorbidities.

Various different configurations of locking screw were assessed over the study period as experience was gained with the device. Nailing without the use of locking screws gave satisfactory stability in only 66% of cases (4 of 6). Initial locking screw constructs rendered between 91% (10 of 11) and 96% (23 of 24) of ankles stable. Overall, seven patients had loss of fixation of the fracture and there were five post-operative wound infections related to the distal fibula. This lead to the development of the current technique with a screw across the syndesmosis in addition to a distal locking screw. In 21 patients treated with this technique there have been no significant complications and only one superficial wound infection. Good fracture reduction was achieved in all of these patients. The mean physical component Short-Form 12, Olerud and Molander score, and AAOS Foot and Ankle outcome scores at a mean of six years post-injury were 46 (28 to 61), 65 (35 to 100) and 83 (52 to 99), respectively. There have been no cases of fibular nonunion.

Nailing of the fibula using our current technique gives good radiological and functional outcomes with minimal complications, and should be considered in the management of patients with an unstable ankle fracture.

Introduction

The optimal treatment of elderly patients with unstable ankle fractures is a widely contested and as yet unresolved issue. Whereas the AO technique of anatomical reduction and plate fixation has been shown to give good functional results it is associated with a wound complication rate of up to 40%. This has led some surgeons to believe the risks of operative intervention are too great.

The fibula nail is an intra-medullary device with the benefit of requiring minimal soft-tissue dissection. It provides lateral column support over a greater area than the standard plate.

The study aims were to assess the clinical and radiographic outcome of a cohort of patients managed with the Fibula Nail (Acumed).