Mid- to long-term results of the Cone-Conical modular system in revision hip arthroplasty.

Autor: El Ashmawy AA; Department of Trauma and Orthopaedic Surgery, University of Alexandria, Alexandria, Egypt. Dr.3ashmawy@gmail.com., Hosny HAH; Department of Trauma and Orthopaedic Surgery, University of Alexandria, Alexandria, Egypt.; Department of Orthopaedic Surgery, University Hospitals Plymouth NHS Trust, Plymouth, UK., El-Bakoury A; Department of Trauma and Orthopaedic Surgery, University of Alexandria, Alexandria, Egypt.; Department of Orthopaedic Surgery, University Hospitals Plymouth NHS Trust, Plymouth, UK., Yarlagadda R; Department of Orthopaedic Surgery, University Hospitals Plymouth NHS Trust, Plymouth, UK., Keenan J; Department of Orthopaedic Surgery, University Hospitals Plymouth NHS Trust, Plymouth, UK.
Jazyk: angličtina
Zdroj: International orthopaedics [Int Orthop] 2022 Mar; Vol. 46 (3), pp. 531-539. Date of Electronic Publication: 2021 Oct 12.
DOI: 10.1007/s00264-021-05237-5
Abstrakt: Background: Modular design in revision hip surgery allows some flexibility intra-operatively to address leg length discrepancy, version, and offset while allowing the surgeon to bypass a deficient proximal femur and achieve axial and rotational stability distally. The purpose of this study was to analyze the mid-term to long-term survival and clinical and radiological outcomes using a conical fluted stem and a cone-shaped hydroxyapatite-coated proximal body "The Cone-Conical modular system (Stryker)" in revision hip surgery.
Methods: We retrospectively reviewed all the patients who underwent hip revision surgery using Cone-Conical modular system between January 2006 and January 2015 at our institution. Seventy patients (72 hips) were included with a mean age of 71.3 years. We had a mean follow-up period of 8.6 years (range 5-15). All patients had a minimum follow-up of five years. A Kaplan-Meier analysis was used to determine the survival of the implant. Functional outcomes were assessed using Oxford Hip Score. Plain radiographs were performed to assess implant fixation and osseointegration.
Results: The mean OHS improved significantly from 12 pre-operatively to 34 at the final follow-up (P < .001). The Cone-Conical system survivorship for aseptic loosening as an end point was 100%. The all-cause survivorship was 97.2%. Two hips had revisions for recurrence of infection.
Conclusions: The Cone-Conical femoral modular revision system has demonstrated excellent mid-term to long-term clinical and radiographic results with low failure rate and minimal complications. Longer-term follow-up would be of value to assess the ongoing survival of this implant.
(© 2021. The Author(s), under exclusive licence to The Author(s) under exclusive licence to SICOT aisbl.)
Databáze: MEDLINE
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