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Intra-articular fractures of the tibial plafond

A COMPARISON OF THE RESULTS USING ARTICULATED AND RING EXTERNAL FIXATORS

Department of Orthopaedics and Traumatology, Celal Bayar University, 45040 Manisa, Turkey.

K. Aktuglu, MD, Consultant Orthopaedic Surgeon

Department of Orthopaedics and Traumatology, Ege University, 35040 Bornova-Izmir, Turkey.

Correspondence should be sent to Dr G. Okcu at Mithatpasa Cad Camyamac Apt, No 628/3 D3, 35280 Kucukyali, Izmir, Turkey.

We retrospectively reviewed 60 fractures of the tibial plafond treated by either an ankle-sparing diaphyseal-epiphyseal technique using the Ilizarov ring fixator or by an ankle-spanning technique using a monolateral articulated external fixator. The Ilizarov ring fixator was applied in 24 fractures and the monolateral articulated transarticular external fixator in 20. Both techniques were combined with limited open reduction and internal fixation of the articular surface if necessary. Between three and nine years after the injury, all patients returned for clinical and radiological assessment and evaluation of ankle function using the modified Mazur score. There were no significant differences between the two groups in terms of age, gender, mechanism of injury, type of fracture or length of follow-up.

The mean functional ankle score was 86 points for the Ilizarov group and 82 points for the articulated fixator group. The difference was not significant (p = 0.07). There were no significant differences between the groups with regard to the radiographic score and late complications. Patients treated with the Ilizarov ring fixator had significantly better ankle and subtalar movement.

We conclude that both techniques of external fixation are satisfactory methods of treatment for fractures of the tibial plafond, but that the total arc of movement of the joint is preserved better without bridging the ankle.

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