The Journal of Bone and Joint Surgery, Vol 62, Issue 8 1264-1273, Copyright © 1980 by Journal of Bone and Joint Surgery, Inc
Use of the Hoffmann apparatus in the treatment of unstable tibial fractures
RB Lawyer and LM Lubbers
The Hoffmann apparatus was employed in the treatment of thirty-four complex
tibial fractures that we considered to have a poor prognosis with more
conventional forms of treatment. Complications were minimum. The time to
union for all of the fractures averaged 5.8 months and appeared to be
directly related to the accuracy of the reduction. In twenty-five fractures
in which it was possible to achieve an anatomical reduction and to apply
compression through the apparatus, the time to union averaged 5.1 months.
In six fractures that could not be anatomically reduced and compressed, the
time to union averaged 8.2 months. Shortening or significant angulation of
the fractures did not occur. The accessibility of the wound for serial
debridement and the stabilization of the fracture as well as the
traumatized soft tissue were thought to be of great value in preventing
deep wound infection. A retrospective evaluation of many of the healed
fractures revealed roentgenographic evidence of primary bone-healing
without visible callus. Knowledgeable application of the principles and
biomechanics of primary bone-healing are essential for successful treatment
by this method.