Fracture Fixation and Implants

Authors: Bruce CW1, Gibson TW, Runciman RJ.
Journal: VCOT

OBJECTIVES:

The purpose of this study was to compare the stiffness, yield load, ultimate load at failure, displacement at failure, and mode of failure in cantilever bending of locking compression plates (LCP) and dynamic compression plates (DCP) in an acute failure ilial fracture model. Our hypothesis was that the LCP would be superior to the DCP for all of these biomechanical properties.

METHODS:

Authors: Biskup JJ1, Griffon DJ, Socie M, Schaeffer DJ, Kurath P.
Journal: Vet Surg

OBJECTIVE:

To compare the ability of the Tightrope® (TR) cranial cruciate ligament (CCL) technique, percutaneous lateral fabella suture (pLFS) technique, and normal CCL to control cranial tibial translation (CTT).

STUDY DESIGN:

In vitro biomechanical study.

SAMPLE POPULATION:

Cadaveric canine pelvic limbs (n = 18 pairs).

METHODS:

Authors: Beierer LH1, Glyde M, Day RE, Hosgood GL.
Journal: Vet Surg

OBJECTIVE:

To compare the biomechanical properties of a 10-hole 3.5 mm locking compression plate (LCP) with 2 proximal and 2 distal bicortical locked screws reinforced with either a Steinmann pin of 30-40% the medullary diameter or a poly-ether-ether-ketone (PEEK) rod of ∼75% the medullary diameter in a cadaveric tibia gap model.

STUDY DESIGN:

Ex vivo study.

SAMPLE POPULATION:

Cadaveric canine tibias (n = 8 pair).

METHODS:

Authors: Soukup JW, Snyder CJ.
Journal: J Feline Med Surg

PRACTICAL RELEVANCE: Maxillofacial and traumatic dentoalveolar injuries can cause pain and inflammation, and reduce function of the mouth, impacting a cat's quality of life. Many traumatically induced feline fractures have been reported to involve the mandible or skull and, in cats with maxillofacial trauma, traumatic dentoalveolar injuries are particularly prevalent. Traumatic dentoalveolar injuries can also often be found in otherwise healthy cats.

Authors: Demianiuk RM1, Guiot LP.
Journal: J Small Anim Pract

A 4 · 5-month-old, 13 · 8 kg, female neutered mixed breed dog was presented for evaluation of acute non-weight bearing right pelvic limb lameness. Radiographs revealed a tibial tuberosity avulsion fracture for which open reduction/internal fixation was performed. Asymmetrical premature closure of the cranial aspect of the proximal tibial physis ensued with a tibial plateau angle of -12°. Abnormal stifle biomechanics resulted in lameness and caudal cruciate ligament fraying.

Authors: Dan BJ1, Kim SE, Pozzi A.
Journal: J Small Anim Pract

A two-year-old Rottweiler presented for acute onset of a right hindlimb lameness 20 weeks after a cementless total hip replacement (THR) and 16 weeks after open reduction to address luxation of the THR. Radiographs revealed periosteal proliferation of the medial acetabulum and a stable implant. Synovial fluid cytology was consistent with inflammatory joint fluid. Treatment consisted of surgical debridement and intravenous and oral antibiotics. THR implants were not removed. Culture of tissue removed from the THR site yielded growth of Pseudomonas and Staphylococcus species.

Authors: Witte PG1, Bush MA, Scott HW.
Journal: J Small Anim Pract

OBJECTIVE:

To document the results of management of feline distal tibial fractures with circular-linear hybrid external skeletal fixators.

METHODS:

Retrospective examination of case records and radiographs of cats with distal tibial fractures managed with hybrid external skeletal fixators. Signalment, pre-operative fracture conformation, post-operative fracture reduction, implant complications, time to tibial and fibular fracture healing and time to hybrid external skeletal fixators removal were analysed.

Authors: Deruddere KJ1, Snelling SR.
Journal: N Z Vet J

AIM:

The aim of this study was to report the outcome of acute antebrachial angular and rotational limb deformity (AARLD) correction using a standard radial ostectomy, an unarticulated type 1b external skeletal fixator (ESF) and intra-operative alignment with no pre-operative planning.

METHODS:

Authors: Greeff DR1, Owen M2, Bush M2.
Journal: J Feline Med Surg

This report describes the successful management of a carpal hyperextension injury in a cat using combined temporary transarticular internal and external skeletal fixation, without performing an arthrodesis. To our knowledge, there have been no previous reports of management of feline carpal hyperextension injuries in this fashion.

Authors: Millard RP1, Weng HY.
Journal: JAVMA

Objective-To evaluate the proportion of and risk factors for open fractures of the appendicular skeleton in dogs and cats that were a result of acute trauma. Design-Cross-sectional and case-control study. Animals-84,629 dogs and 26,675 cats. Procedures-Dogs and cats examined at Purdue University Veterinary Teaching Hospital from January 1993 through February 2013 were identified; the proportion of open fractures was estimated from the medical records.