Complications and Long-Term Outcome in 30 Canine Total Hip Arthroplasties Using a Second-Generation Selective Laser Melted Screw Cup

Nikolaus Huels; Philipp Dautzenberg; Dana Keim; Oliver Harms; Johannes Siedenburg

doi:10.1055/s-0044-1789264

Veterinary and Comparative Orthopaedics and Traumatology, Table of Contents

Vet Comp Orthop Traumatol 2025; 38(02): 057-062
DOI: 10.1055/s-0044-1789264

Original Research

Complications and Long-Term Outcome in 30 Canine Total Hip Arthroplasties Using a Second-Generation Selective Laser Melted Screw Cup

Authors

Nikolaus Huels

¹Klinik für Kleintiere, Stiftung Tierärztliche Hochschule Hannover, Hannover, Germany
Philipp Dautzenberg

²Kleintierzentrum alte Druckerei, Herzogenrath, Germany
Dana Keim

³Tierärztliche Klinik Gessertshausen Altano GmbH, Gessertshausen, Germany
Oliver Harms

⁴Fachzentrum für Kleintiermedizin, Langenhagen, Germany
Johannes Siedenburg

¹Klinik für Kleintiere, Stiftung Tierärztliche Hochschule Hannover, Hannover, Germany

Abstract

Objective The aim of this study was to report complications and outcomes of a cementless total hip arthroplasty (THA) system with a second-generation selective laser-melted screw cup (SCSL).

Study Design All THA using the SCSL performed at a single institution between January 2017 and November 2022 were retrospectively evaluated. Patients with a minimum follow-up period of 12 months and complete medical records were included and analyzed for radiographic and clinical outcomes.

Results Thirty THA with SCSL in 23 dogs were included in this study. Complications were observed in seven hips, comprising two minor and five major complications, with two hips experiencing two major complications. Among these seven major complications, six were associated with the femoral implant and one involved cup luxation. Of the 30 THA, 4 were explanted, while 26 remained in place for a median follow-up of 17.5 months (range, 12–38 months).

Conclusion No cases of late aseptic loosening were observed with SCSL. THA using SCSL helps reduce cup-associated complications and is appropriate for THA surgery, and the overall complication rate is comparable with that of other single-implant systems. Nevertheless, four hips were explanted.

Keywords

dog - cementless - total hip replacement - 3D printing - hip dysplasia

Full Text

References

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