Case Report
Outcomes after Trifocal Femoral Fractures
Michelle Griffin, Alastair G. Dick, and Shamim Umarji
Orthopaedic Department, St. George’s Hospital, London SW17 0QT, UK
Correspondence should be addressed to Shamim Umarji; sumarji@hotmail.com
Received 15 December 2013; Accepted 13 February 2014; Published 1 April 2014
Academic Editors: F.-M. Haecker and G. Rallis
Copyright © 2014 Michelle Griin et al. his is an open access article distributed under the Creative Commons Attribution License,
which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Trifocal femur fractures are those of the femoral neck, diaphysis, and distal femur. hese high-energy injuries predominantly
occur in young people with the potential for long-term complications and disability. We present the cases of two men who were
treated with proximal dynamic hip screws and distal periarticular locking plates to efectively manage trifocal femur fractures. Our
cases have shown union at 2 years with good functional outcomes without the need for reintervention. We provide evidence for a
successful surgical treatment option for these rare and complex injuries.
1. Introduction
Isolated fractures of the diaphysis of the femur are relatively
common injuries with an estimated annual incidence of
10 per 100,000 person-years [1]. Multifocal fractures of the
femur are less common with an additional proximal femoral
fracture estimated to occur in up to 5% of diaphyseal fractures
[2] and additional distal femoral fracture occurring in 3-
4% [3]. Trifocal femoral fractures consisting of ipsilateral
fractures of the proximal, diaphyseal, and distal femur are
extremely rare. Such an injury pattern was irst reported
by K¨ ach in 1993 [4] and to date the literature reports 18
cases of trifocal femur fractures [3–8]. hese injuries result
from high-energy mechanisms, usually a high-speed road
traic collision. Due to the rarity of such injuries and
the heterogeneity of the fracture patterns there is minimal
consensus on their optimal management. We present two
cases of trifocal femur fractures managed with dynamic hip
screws and distal periarticular locking plates, a technique
which to the best of our knowledge has not previously been
reported for the management of trifocal femur fractures.
2. Case Report 1
A previously it and well 41-year-old male coach driver was
involved in a high speed road traic collision with a two-hour
period of entrapment in his vehicle prior to extrication and
transfer to our level 1 Trauma Centre. On arrival the patient
was haemodynamically stable with no evidence of signiicant
head injury. he patient was complaining of pain in the right
thigh and had an obviously deformed right lower extremity.
Radiographs revealed a grossly displaced diaphyseal
femoral fracture with signiicant comminution and exten-
sion into the femoral condyles with a displaced ipsilateral
basicervical femoral neck fracture (Figures 1(a) and 1(b)). he
fractures were classiied according to AO/ASIF classiication
as 31-B2, 32-B2, and 33-B2. he patient’s other injuries
included a right radius and ulna fracture and a subcapsular
splenic haematoma, which was managed conservatively.
Surgery was performed on the same day, shortly ater
admission. Under general anaesthesia the patient was posi-
tioned on a standard radiolucent traction table. First the
proximal fracture was reduced and stabilised using a two-
hole plate dynamic hip screw (DHS) with a derotation screw.
An extended lateral approach was then used to reduce and
stabilise the distal fractures with a 16-hole locking plate
(AxSOS Distal Lateral Femoral Plate, Stryker, Mahwah, NJ,
USA) (Figures 1(c) and 1(d)). he upper limb injury was
splinted but not deinitively stabilised at this time.
he patient required an eight-day postoperative period
in the intensive care unit. He developed acute renal failure
secondary to rhabdomyolysis and required renal replacement
therapy. He underwent an open reduction and internal ixa-
tion of the forearm fractures ater ive days. he patient then
had an uneventful postoperative course and was discharged
from hospital 23 days postoperatively.
Hindawi Publishing Corporation
Case Reports in Surgery
Volume 2014, Article ID 528061, 4 pages
http://dx.doi.org/10.1155/2014/528061