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Biomechanical analysis of a short femoral stem used in revision total hip replacement of a standard femoral stem.
Sci Rep
January 2025
Department of Orthopaedic Surgery, The First Affiliated Hospital of Naval Medical University: Changhai Hospital, Shanghai, China.
Short-stem total hip arthroplasty (SHA) has become popular because it preserves femoral bone stock and enables the use of short femoral stems in revision total hip arthroplasty (THA). However, no study has evaluated whether a short stem in revision THA, replacing a standard stem, can provide adequate primary stability to facilitate osseous integration. In this biomechanical study, a metaphyseal anchoring SHA (Tri-Lock BPS) stem and a standard THA (Corail) stem were implanted into ten composite femurs and loaded dynamically from 300 to 1700 N with 1 Hz.
View Article and Find Full Text PDFStem subsidence in total hip arthroplasty: retrospective investigation of a short stem using a simple measurement approach.
Arch Orthop Trauma Surg
December 2024
Department of General Orthopaedics and Tumour Orthopedics, Muenster University Hospital, Albert-Schweitzer-Campus 1, 48149, Muenster, Germany.
Background: Uncemented total hip arthroplasty (THA) is a successful treatment for advanced hip joint diseases. More recently, short stems became increasingly popular, but stem subsidence remains a concern. This study investigates early short stem subsidence in a large patient cohort using a simple measurement approach for everyday practice.
View Article and Find Full Text PDFLong-term results of short stem total hip arthroplasty in patients with osteonecrosis of the femoral head.
Arch Orthop Trauma Surg
December 2024
Department of Orthopaedic Surgery, Uthumphon Phisai Hospital, Uthumphon Phisai District, Sisaket Province, 33120, Thailand.
Introduction: Short stem total hip arthroplasty (THA) is an alternative to conventional stem, designed to facilitate minimal-invasive surgery, physiological loading and preserve bone stock. However, there is insufficient evidence of the long-term outcomes in patients with osteonecrosis of the femoral head (ONFH). This study aims to analyze the clinical and radiographic results with a minimum follow-up of 10 years.
View Article and Find Full Text PDFLong-term outcomes with a partial neck-preserving cementless short stem in primary total hip arthroplasty for young patients: a single center first one hundred cases.
Arch Orthop Trauma Surg
December 2024
HIBA Hip Surgery Unit, Institute of Orthopaedics "Carlos E. Ottolenghi", Italian Hospital of Buenos Aires, Buenos Aires, Argentina.
Purpose: This study aimed to assess the long-term results of THA patients who received a cementless short stem regarding clinical outcomes, bone changes, complications, and incidence of femoral revision.
Methods: A retrospective evaluation of the first 100 THA employing a type 2B cementless stem (Mini hip stem, Corin, Cirencester, United Kingdom) by the same surgeon at one institution. We only include patients with 18 years or more, and with a minimum follow up of 8 years.
Same same but different: Introduction of a classification system in calcar-guided short-stem total hip arthroplasty.
Hip Int
January 2025
1Endoprotheticum Rhein-Main, Mainz, Germany.
Background: The concept of calcar-guided short-stem THA (ssTHA) has largely emerged over the last decade, especially in Europe, and today modern calcar-guided short stems are among the most successful primary femoral implants in terms of complications and revision rates as indicated by multiple registry data. The philosophy originally comprised an individualised reconstruction of the hip anatomy by following the calcar of the femoral neck providing bone- and soft-tissue-sparing characteristics. However, as the stem design allows either metaphyseal fixation alone or additional diaphyseal anchoring, depending on the stem alignment and indication, distinct knowledge is required regarding the implantation technique, the broad variation of positioning and fixation and its potential clinical consequences.
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