Results of Screw/Wire/Polymethylmethacrylate Composite Fixation for Acetabular Fracture Repair in 14 Dogs

Abstract

The SWP composite fixation technique would seem to be an acceptable means of stabilizing acetabular fractures in dogs.

Biomechanical Comparison of Two Plating Techniques for Fixation of Acetabular Osteotomies in Dogs

“…However, this is physically difficult because of the location of the sciatic nerve and the contour of the acetabulum. Possibly the screws, wire, and methylmethacrylate described by Lewis 11–13 can be placed more dorsal than a plate to counteract the distracting force of the loaded femoral head on the acetabulum. The opening of the osteotomy on the medial acetabulum also illustrates the difficulty encountered in fixation of acetabular fractures with comminution of the medial acetabular wall and the tendency of the femoral head to luxate medially after their repair.…”

“…Implant failure can lead to malalignment of the fracture, osteoarthritis, and poor function. Because of technical difficulties associated with accuracy of reduction and complications with plating techniques, other methods of internal fixation have been used, including a tension‐band technique with screws and wire and strengthened with polymethylmethacrylate 11–13 …”

A Biomechanical Comparison of Screw and Wire Fixation With and Without Polymethylmethacrylate Re‐Enforcement for Acetabular Osteotomy Stabilization in Dogs

“…Utilization of the composite fixation was associated with few complications and most dogs examined at follow‐up evaluations had acceptable limb function. Muscle mass of the affected limb was comparable to that of the contralateral pelvic limb and there was minimal radiographic evidence of degenerative joint disease attributed to the fracture and its repair 1 …”

“…In a study performed using cadaver pelves, acetabular osteotomies stabilized with the composite fixation had comparable stability and superior reduction to acetabular osteotomies stabilized with 2‐mm veterinary acetabular plates 2 . Clinical results reported with this technique have been encouraging 1 . Utilization of the composite fixation was associated with few complications and most dogs examined at follow‐up evaluations had acceptable limb function.…”

Regional load bearing of the feline acetabulum

“…A variety of internal fixation techniques or femoral head and neck excision arthroplasty can be used (Dyce and Houlton, 1993;Lewis et al, 1997).…”