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Management principles of osteoporotic fractures

Michael J. Gardner, Cory Collinge*

Vanderbilt University Medical Center, Medical Center East- South Tower, Nashville, TN 37205, United States

A B S T R A C T

Osteoporotic fractures are difficult to manage. They pose a number of difficulties to the surgeon arising from the

underlying poor bone stock compromising the intention to achieve optimum fixation. Moreover, the frail elderly

patients present with a variety of medical co-morbidities increasing the risk of developing perioperative

complications. Despite these recognized challenges, there are currently a number of improving technologies and

strategies at the surgeon

s disposal to provide more confidence with fracture fixation and maximize the chance of

success.

© 2016 Elsevier Ltd. All rights reserved.

K E Y W O R D S

Fixation

Osteoporotic fractures

Locked plating

Augmentation

Challenges in the treatment of osteoporotic fractures

Over the next several decades, the increasing number of patients

expected to experience osteoporotic fractures, the so-called

silver

tsunami,

is already being sensed by orthopaedic surgeons and others

who provide care to elderly patients. These patients are characterized

by physical frailty, medical co-morbidities, and general immobility.

When fractures occur in these patients, fixation often rendered

unpredictable by the poor holding power of internal fixation within

osteoporotic bone [1]. These situations are also made more complex by

their periarticular, periprosthetic, or even interprosthetic fracture

locations [2,3]. The repair of these fractures require a thoughtful, and

often unique, approach to maximize the strength of repair to allow

patients to mobilize as soon as is feasible. Despite these recognized

challenges, there are currently a number of improving technologies

and strategies at the surgeon

s disposal to provide more confidence

with fracture fixation and maximize the chance of success.

Locked plating

One component of the pathological process in osteoporosis involves

cortical thinning, which is often magnified in the metaphyseal or

metadiaphyseal regions of long bones. Hence, osteoporotic fractures

often occur in these regions. When these occur, the articular, or

epiphyseal, fracture segment is often relatively small, making fixation

with intramedullary nail interlocking screws problematic. Thus,

plating of these fractures has historically been the technique of

choice. With standard plating constructs, plating on one surface of a

metaphyseal fracture (eccentric stabilization) can be particularly prone

to fixation failure [4]. Mechanically, the ability of the screw head

to toggle within the plate make it difficult for these implants to

maintain coronal plane alignment, particularly with opposite-cortex

comminution [5,6]. Because most plates are applied laterally, medial

cortical comminution predisposes to reduction loss with varus

deformity when standard implants are used (Figure 1).

Fig. 1.

Example of a proximal tibial metaphyseal treated with a lateral standard

(non-locked) implant. Varus failure occurred.

*

Corresponding author at: Cory Collinge, MD. Professor of Orthopedic Surgery, Department

of Orthopedic Surgery, Vanderbilt University Medical Center, Medical Center East- South

Tower, Suite 4200, Nashville, TN 37205. Tel.: (817) 253-9392.

E-mail address

:

ccollinge@msn.com

(C. Collinge)

Injury, Int. J. Care Injured 47S2 (2016) S33

S35

Contents lists available at ScienceDirect

Injury

journal homepage: www.

elsevier.com/locate/Injury

0020-1383 / © 2016 Elsevier Ltd. All rights reserved.