Coxofemoral Luxation Repair Using a Novel Push Anchor System in 10 Dogs: Technique and Outcome

Introduction: Coxofemoral luxation (CFL) is a traumatic disorder accounting for more than 90% of traumatic joint luxations in dogs. The objective of our study was to report the technique and outcomes associated with the use of the IMEX push anchor (PA) system to perform toggle pin fixation (TPF). We hypothesized that this push anchor is an effective surgical treatment for CFL in dogs.

Materials and Methods: Medical records were reviewed for dogs undergoing TPF for CFL using IMEX PA technology. Relevant clinical and surgical data were recorded; dogs diagnosed with reluxation were included as failures. A routine approach was made to the hip. Holes were drilled through the acetabulum and proximal femur before the PA was seated on the insertion device and pushed into the acetabular hole using the insertion device. Fiberwire was passed through the femoral tunnel and fixed with a suture button prior to routine closure.

Results: Ten cases met all inclusion criteria. Median weight of the dogs was 12.3 kg and median age was 8 years. Reluxations were reported in 2/10 dogs. Long-term evaluation at a median of 50 days (range, 43–1,664 days) revealed no additional complications.

Discussion/Conclusion: Open reduction of CFL using the novel PA had a reluxation rate of 20% (2/10) which is consistent with previously described toggle procedures reluxation rates of 5.8 to 25%. The IMEX PA system has demonstrated an effective and safe method of CFL repair in canine patients.

Acknowledgments: There was no proprietary interest or funding for this project.