Journal of Small Animal Practice • Vol 59 • April 2018 • © 2017 British Small Animal Veterinary Association
Journal of Small Animal Practice (2018) 59, 232–237
Accepted: 13 November 2017; Published online: 12 December 2017
Tibial plateau levelling osteotomy
locking-compression plates for
stabilisation of canine and feline
ilial body fractures
J. W. G
Fitzpatrick Referrals , Eashing , Surrey , GU7 2QQ , UK
Corresponding author: firstname.lastname@example.org
: To evaluate the clinical and radiographic outcomes following surgical stabilisation of ilial
fractures in dogs and cats using a laterally applied Synthes TPLO locking compression plate.
: Medical records and radiographs of seven dogs and two cats which had undergone
surgical repair of an ilial body fracture with a TPLO locking compression plate were reviewed. Long-term
clinical follow-up was obtained from an owner or referring veterinarian questionnaire.
: Fracture reduction was anatomic in six of nine ilia and near-anatomic in three of nine. All but
one fracture achieved osseous union by 6 weeks after surgery. No screw loosening or implant-related
complications occurred in any patient. There was pelvic canal narrowing in six of nine patients (median
reduction in pelvic canal diameter was 4·9%). No intraoperative or postoperative complications were
: Lateral plating of canine and feline ilial fractures with a Synthes TPLO locking
compression plate was associated with a low complication rate and satisfactory radiographic and
clinical outcomes in this small case series.
Fractures of the pelvis occur frequently in companion dogs
and cats, compromising 20 to 30% of all reported fractures.
Of these pelvic fractures, 18 to 46% are of the ilium (Denny
1978 , Henry 1985 , DeCamp 1992 , Brinker 1997 , Tomlinson
2003 ). Both conservative and surgical management can be uti-
lised to repair iliac fractures. Reported indications for surgical
intervention include: narrowing of the pelvic canal, involvement
of the weight-bearing axis, excessive pain, articular fractures,
neurologic deficits and nerve impingement (DeCamp 1992 ,
Payne 1993 , Lanz 2002 ). An assortment of surgical techniques
has been reported for the repair of iliac fractures in compan-
ion animals (Denny 1978 , Henry 1985 , DeCamp 1992 , Payne
1993 , Brinker 1997 , Lanz 2002 , Tomlinson 2003 ). While the
tension surface of the ilium is ventromedial (Van Gundy et al .
1988 ), lateral plate application is easier and more commonly
done (Denny 1978 , Henry 1985 , DeCamp 1992 , Payne 1993 ,
Brinker 1997 , Tomlinson 2003 ).
Screw loosening is common in dogs (26%) and cats (62%)
following lateral plating with cuttable plates and dynamic com-
pression plates (DCP) (Breshears et al . 2004 , Hamilton et al .
2009 ). Implant-related complications can subsequently result
in narrowing of the pelvic canal (Breshears et al . 2004 ). A pro-
posed cause for the high frequency of screw loosening is the
poor-quality bone stock in the cranial ilium (DeCamp 1992 ,
Breshears et al . 2004 ). One reported alternative to reduce the
frequency of screw loosening and pelvic canal loosening is the
use of dorsal iliac plates (Langley-Hobbs et al . 2009 ). Locking
plates may offer advantages in thin bones with minimal screw
purchase reducing the risk of screw loosening and subsequent
loss of reduction (Haaland et al . 2009 , Blake et al . 2011 , Cabassu
et al . 2011 , Barnhart et al . 2013 , Guerrero et al . 2014 ). Spe-
cifically a recent report has demonstrated that screw loosening