• Hand (New York, N.Y.) · Sep 2015

    Routine use of locking shaft screws is not necessary in volar plate fixation of distal radius fractures.

    • Kevin Lutsky, C Edward Hoffler, Nayoung Kim, and Jonas L Matzon.
    • Rothman Institute at Thomas Jefferson University Hospital, 925 Chestnut St.-5th floor, Philadelphia, PA 19107 USA.
    • Hand (N Y). 2015 Sep 1; 10 (3): 489-91.

    HypothesisVolar locking plate fixation is a common treatment method for distal radius fractures. Recently, implants have been designed with an option to use locking screws in the shaft portion of the plate. While there is a high incidence of low bone mineral density in patients who sustain fragility fractures of the distal radius, the need for locking shaft screws is not well defined. Our hypothesis is that the routine use of locking screws in the shaft portion of volar plates is not required to maintain reduction or to prevent hardware failure.MethodsA retrospective review was performed in all patients over age 50 years who underwent volar plate fixation using an implant with non-locking shaft screws for a distal radius fracture during a 2-year period. Patients were permitted to perform early range of motion exercises. Radiographs were examined and measurements were obtained to assess maintenance of reduction and incidence of hardware failure. Patients were followed at least until fracture healing. Patients were excluded from analysis if locking shaft screws were utilized or if follow-up was inadequate.ResultsForty-one patients met the inclusion criteria. The average age was 62 years (range 50-79). There were 12 men and 29 women. The implant used incorporated 3.5-mm shaft screws in 26 patients and 2.4-mm shaft screws in 15 patients. All patients healed within acceptable radiographic parameters (mean volar tilt = 4.9°, mean radial inclination = 21.7°, mean radial height = 11.6 mm). There were not any instances of hardware failure.DiscussionDistal radius fractures frequently occur in patients with low bone mineral density. Non-locking, bicortically placed shaft screws provide adequate stability to allow for early range of motion without loss of reduction or hardware failure. The routine use of locking screws in the shaft portion of volar plates does not appear justified.

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