Fracture Fixation and Implants

Authors: Ruisen Fu, Yili Feng, Youjun Liu, Bettina M Willie, Haisheng Yang

Dynamization, increasing the interfragmentary movement (IFM) by reducing the fixation stiffness from a rigid to a more flexible condition, is widely used clinically to promote fracture healing. However, it remains unknown how dynamization degree (relative change in fixation stiffness/IFM from a rigid to a flexible fixation) affects bone healing at various stages.

Authors: Valentine D Verpaalen, Daniel D Lewis

Case description: 3 juvenile (4 to 5 months of age) medium- to large-breed or crossbred dogs were evaluated for sudden unilateral non-weight-bearing lameness in a pelvic limb after a fall during strenuous activity.

Authors: Mitsuhiro Isaka, Daiki Kokubo, Toshikazu Sakai

Background: There are few detailed reports on implant-associated sarcoma in dogs; however, loose implants, metal type, and infection have not been shown as specific risk factors for this condition.

Authors: Machteld van Erk, Judith van Luijk , Fang Yang, Sander C G Leeuwenburgh, María J Sánchez-Fernández, Erik Hermans, Rosa P Félix Lanao, Harry van Goor

Currently, steel implants are used for osteosynthesis of (comminuted) fractures and intra-articular bone defects. These osteosyntheses can sometimes be complicated procedures and can have several drawbacks including stress shielding of the bone. A bone glue might be a safe and effective alternative to current materials. Despite numerous animal studies on bone adhesives, no such material is clinically applied yet.

Authors: S Garcia-Pertierra, R L Meeson, Bcy Yeung, G Bedford, M J Pead

Objective: To identify whether a theoretical predictable safe corridor is available in cats for placement of trans-iliac pins without the use of fluoroscopy.

Authors: Alejandro Alvarez-Sanchez, Pierre Amsellem, Luca Vezzoni, Aldo Vezzoni

Objective: To review the outcome of dogs that underwent Zürich cementless total hip arthroplasty (Z-THA) for the repair of acute and chronic capital physeal fractures (CPF) and document the CPF-related hip remodeling.

Study design: Retrospective study.

Sample population: Fifty-three Z-THA in 53 dogs.

Authors: Xinwen Zhao et al.

Background: In orthopedic application, stress-shielding effects of implant materials cause bone loss, which often induces porosis, delayed bone healing, and other complications. We aimed to compare the stress-shielding effects of locked compression plate (LCP) and limited-contact dynamic compression plate (LC-DCP) in dogs with plate-fixed femurs.

Authors: Jae-Woo Cho et al.

Although autogenous bone grafts are an optimal filling material for the induced membrane technique, limited availability and complications at the harvest site have created a need for alternative graft materials.

Authors: Konstantinos Tsikopoulos et al.

Surgical site infection in the presence oforthopaedic implantsposes a significant healthcare and socio-economic burden. In order to assess the potential of various prevention strategies against Staphylococcus-induced stainless steel-associated infections, a review of animal evidencewas designed.

Authors: Danielle M Marturello, Karen L Perry, Loïc M Déjardin

Objective: To describe medium-term functional outcome after nail osteosynthesis in feline traumatology and report clinically relevant recommendations for I-Loc angle-stable interlocking nail use in cats.

Study design: Prospective clinical study.

Sample population: Client-owned cats (n = 29).