We studied the results of total hip arthroplasty (THA) using AML porous-coated femoral components at a mean follow-up of 11 years in a non-selected, consecutive series of patients with rheumatoid arthritis. We reviewed 64 patients with 82 primary THAs using these components. There were seven men (8 hips) and 57 women (74 hips) with a mean age of 55.1 years (24 to 80) at the time of surgery. Nine patients (11 hips) died before the two-year follow-up. Of the remaining 71 hips, only one stem was revised for aseptic loosening. Survivorship for the stems was 98.1% (95% confidence interval (CI) 94.5 to 100.0) at ten years, using a life-table analysis, with revision for any reason as an endpoint. Of the 70 unrevised stems, 66 (94%) had bony ingrowth, while four (6%) were radiologically loose at the most recent follow-up (mean 11.4 years). Our study shows the excellent long-term results which can be achieved with porous-coated femoral components in patients with rheumatoid arthritis.
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Long-term results of revision total hip arthroplasties using cementless stems and allografts for paprosky type IIIB and IV femoral defects short title: Revision hip arthroplasty in type IIIB and IV femoral defects.
Int Orthop
January 2025
The Joint Replacement Center of Seoul Metropolitan Government SeoNam Hospital, Seoul, Republic of Korea.
Article Synopsis
- This study evaluated the long-term clinical outcomes of revision total hip arthroplasty (THA) in patients with severe femoral bone defects, using established scoring systems to measure results.
- Results showed significant improvements in hip function scores and high rates of bone ingrowth (91%) with cortical strut allografts well incorporated in most patients.
- The survival rate of the femoral components after an average follow-up of 26.5 years was 91%, indicating positive long-term outcomes for patients undergoing this procedure.
Mid-term Survivorship and Functional Outcomes of Metaphyseal Sleeves for Addressing Anderson Orthopaedic Research Institute (AORI) Type 2 and 3 Bone Defects in Revision Total Knee Arthroplasty.
Cureus
September 2024
Orthopaedics, KIMS-Sunshine Hospitals, Hyderabad, IND.
Introduction Revision Total Knee Arthroplasty (RTKA) is a complex procedure challenged by significant bone loss, necessitating effective restoration techniques. This study investigates the clinical outcomes and complications of metaphyseal sleeves in RTKA with severe metaphyseal bone loss, aiming to evaluate their efficacy over a minimum four-year follow-up. Methods This was a retrospective observational study on 29 patients who underwent RTKA with Anderson Orthopaedic Research Institute (AORI) type II or III bone defects using porous coated tibial and/or femoral metaphyseal sleeves from December 2016 and January 2019.
View Article and Find Full Text PDFUse of a Novel Reverse Hip Replacement System to Address Dislocation and Instability.
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July 2024
JIS Orthopedics, New Albany, Ohio.
While total hip arthroplasty (THA) is an enormously successful treatment for patients with end-stage degenerative arthritis of the hip, and surgeons have optimized existing hip implants and techniques, dislocation and instability persist as a leading cause of failure. Given the tremendous success of reverse total shoulder arthroplasty in enhancing the stability of shoulder reconstruction by reversing the anatomic seating of the ball and socket components, one manufacturer (Hip Innovation Technology, LLC, Woodstock, Georgia) has developed a novel Reverse Hip Replacement System (Reverse HRS) to address the need for greater stability in reconstruction of the arthritic hip joint. Rather than the traditional anatomic components that replace the head of the femur with a spherical ball and the acetabulum with a socket with polyethylene liner mounted into the pelvis, the Reverse HRS features a cup with polyethylene liner attached to the femoral stem and a spherical metal head attached to a central trunnion inside of the porous-coated acetabular shell fixed into the pelvis.
View Article and Find Full Text PDFGap patterns and radiographic follow-up of newer-generation cementless total knee arthroplasty designs.
Can J Surg
March 2024
From the Division of Orthopaedic Surgery, Department of Surgery, Schulich School of Medicine and Dentistry, Western University and London Health Sciences Centre, London, Ont. (Frazer, Teeter, Howard, Vasarhelyi, Lanting); the Department of Orthopaedic Surgery, Singapore General Hospital, Singapore, Singapore (Lim).
Background: Interest in cementless total knee arthroplasty (TKA) has increased with advancement of biomaterials and implant design and associated improved longevity. We sought to evaluate the gap patterns and radiolucent zones radiographically for 2 newer-generation cementless TKA designs.
Methods: We retrospectively reviewed our single-institution database between January 2017 and December 2019.
Revision Total Hip Arthroplasty with a Modular Fluted Tapered Stem for a Periprosthetic Femoral Fracture.
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July 2023
Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota.
Background: As the number of primary total hip arthroplasty procedures performed each year continues to rise, so too do the number of complications, including periprosthetic femoral fracture. Vancouver B2 and B3 periprosthetic femoral fractures are difficult to treat because they require the surgeon to simultaneously manage a femoral fracture and gain new implant fixation. Fluted tapered stems have advanced the treatment of periprosthetic femoral fractures by providing immediate axial and rotational implant fixation distal to the fracture.
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