The Journal of Bone and Joint Surgery (American). 2008;90:31-46.
doi:10.2106/JBJS.G.01502
© 2008 The Journal of Bone and Joint Surgery, Inc.
Complex Distal Humeral Fractures: Internal Fixation with a Principle-Based Parallel-Plate TechniqueSurgical Technique
Joaquin Sanchez-Sotelo, MD, PhD1,
Michael E. Torchia, MD1 and
Shawn W. O'Driscoll, PhD, MD1
1 Department of Orthopedic Surgery, Mayo Clinic, 200 First Street S.W., Medical
Sciences Building 3-69, Rochester, MN 55905. E-mail address for S.W.
O'Driscoll:
odriscoll.shawn{at}mayo.edu
Investigation performed at the Department of Orthopedic Surgery, Mayo
Clinic, Rochester, Minnesota
The original scientific article in which the surgical technique was
presented was published in JBJS Vol. 89-A, pp.
961-9, May 2007
DISCLOSURE: The authors did not receive any outside funding or grants in
support of their research for or preparation of this work. One or more of the
authors received, in any one year, payments or other benefits in excess of
$10,000 or a commitment or agreement to provide such benefits from a
commercial entity (Acumed). Also, a commercial entity (Acumed) paid or
directed in any one year, or agreed to pay or direct, benefits in excess of
$10,000 to a research fund, foundation, division, center, clinical practice,
or other charitable or nonprofit organization with which one or more of the
authors, or a member of his or her immediate family, is affiliated or
associated. One of the authors works with Stryker on implant design.
A video supplement to this article will be available from the Video
Journal of Orthopaedics. A video clip will be available at the JBJS web
site,
www.jbjs.org.
The Video Journal of Orthopaedics can be contacted at (805) 962-3410,
web site:
www.vjortho.com.
BACKGROUND: Severe comminution, bone loss, and osteopenia at the
site of a distal humeral fracture increase the risk of an unsatisfactory
result, often secondary to inadequate fixation. The purpose of this study was
to determine the outcome of treating these fractures with a principle-based
technique that maximizes fixation in the articular fragments and stability at
the supracondylar level.
METHODS: Thirty-four consecutive complex distal humeral fractures
were fixed with two parallel plates applied (medially and laterally) in
approximately the sagittal plane. The technique was specifically designed to
satisfy two principles: (1) fixation in the distal fragments should be
maximized and (2) screw fixation in the distal segment should contribute to
stability at the supracondylar level. Twenty-six fractures were AO type C3,
and fourteen were open. Thirty-two fractures were followed for a mean of two
years. The patients were assessed clinically with use of the Mayo Elbow
Performance Score (MEPS) and radiographically.
RESULTS: Neither hardware failure nor fracture displacement occurred
in any patient. Union of thirty-one of the thirty-two fractures was achieved
primarily. Five patients underwent additional surgery to treat elbow
stiffness. There was one deep infection that resolved without hardware removal
and did not impede union. At the time of the most recent follow-up,
twenty-eight elbows were either not painful or only mildly painful, and the
mean flexion-extension arc was 99°. The mean MEPS was 85 points. The
result was graded as excellent for eleven elbows, good for sixteen, fair for
two, and poor for three.
CONCLUSIONS: Stable fixation and a high rate of union of complex
distal humeral fractures can be achieved when a principle-based surgical
technique that maximizes fixation in the distal segments and stability at the
supracondylar level is employed. The early stability achieved with this
technique permits intensive rehabilitation to restore elbow motion.
LEVEL OF EVIDENCE: Therapeutic Level IV. See Instructions
to Authors for a complete description of levels of evidence.
ORIGINAL ABSTRACT CITATION: "Complex Distal Humeral Fractures:
Internal Fixation with a Principle-Based Parallel-Plate Technique"
(2007;89:961-9).

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