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Intramedullay (Sonoma Wrx Distal Radius Nail) Versus Volar Locking Plate Fixation for Distal Radius Fractures: A Prospective, Randomized Controlled Study
Ajmal Ikram, FCS, Orth(SA); Mark Van Der Kaag, MBChB
Orthopaedic Department, Tygerberg Hospital, University of Stellenbosch, Cape Town, South Africa

Aims of Study: Assess and compare the functional, radiological and cosmetic results as well as patient satisfaction in patients treated with the IMN Device Vs Volar Locking Plate

Method: All patients who presented to our institution with extra articular distal radius fractures and met the inclusion criteria were invited to take part in the study. The patients were randomly allocated to two groups, those who underwent intramedullary distal radius fixation using the Sonoma Wrx Distal radius nail and those who underwent fixation using a volar locking plate. The patients were then asked to follow up at 2 weeks, 6 weeks, 3 months, 6 months and 1 year. The radiological parameters, i.e radial height, inclination and tilt were compared as well as the functional outcomes by means of DASH score. Incision size and tourniquet times were recorded. Complications were reviewed.

Results: Currently we have included 21patients in the IMN group and 19 patients in the volar plate group. At 12 months the average DASH scores are 12.9 and 22.3 respectively. Tourniquet times are 29.5 and 37.8 minutes. The radiological parameters are statistically comparable. Scar sizes are 3.08 and 7.3cm respectively.

Conclusion: Intra medullary nailing of the distal radius seems to compare to volar plating in terms of radiological outcomes as well as functionally. The scar sizes are smaller DASH scores are lower for the intramedullary nail

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