The Journal of Bone and Joint Surgery (American). 2007;89:177-188.
doi:10.2106/JBJS.F.00742
© 2007 The Journal of Bone and Joint Surgery, Inc.
Exchange Nailing of Ununited Fractures
Mark R. Brinker, MD1 and
Daniel P. O'Connor, PhD1
1 Fondren Orthopedic Group (M.R.B.) and Joe W. King Orthopedic Institute
(D.P.O'C.), Texas Orthopedic Hospital, 7401 South Main Street, Houston, TX
77030-4509
Investigation performed at the Fondren Orthopedic Group, Texas
Orthopedic Hospital, Houston, Texas
Disclosure: The authors did not receive grants or outside funding in
support of their research for or preparation of this manuscript. They did not
receive payments or other benefits or a commitment or agreement to provide
such benefits from a commercial entity. No commercial entity paid or directed,
or agreed to pay or direct, any benefits to any research fund, foundation,
educational institution, or other charitable or nonprofit organization with
which the authors are affiliated or associated.
Exchange nailing is most appropriate for a nonunion without substantial
bone loss.
There is no clear consensus regarding the use of exchange nailing in the
presence of active, purulent infection.
The exchange nail should be at least 1 mm larger in diameter than the nail
being removed, and it has been recommended that it be up to 4 mm larger when
the nail being removed was greatly undersized. Canal reaming should progress
until osseous tissue is observed in the reaming flutes.
Exchange nailing is an excellent choice for aseptic nonunions of
noncomminuted diaphyseal femoral fractures, with union rates reported to range
from 72% to 100%. On the basis of the available literature, exchange nailing
cannot be recommended for distal femoral nonunions at this time.
Exchange nailing is an excellent choice for aseptic nonunions of
noncomminuted diaphyseal tibial fractures, with union rates reported to range
from 76% to 96%.
On the basis of the available literature, exchange nailing is generally not
indicated for humeral nonunions.

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