ArticleJournal of orthopaedic surgery and research2021
Clinical and radiological results of high offset tri-lock bone preservation stem in unilateral primary total hip arthroplasty at a minimum follow-up of 3 years.
Article in Journal of orthopaedic surgery and research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Significant functional improvements and radiographic stability following fully cemented total hip arthroplasty in elderly patients: A 2-year prospective study.Journal of orthopaedics · 2025Article
- A high offset stem design does not increase stem migration under full weight bearing in cementless total hip arthroplasty: a model-based RSA study.Arthroplasty (London, England) · 2025Article
- Biomechanical analysis of a short femoral stem used in revision total hip replacement of a standard femoral stem.Scientific reports · 2025Article
- No differences in clinical and radiographic outcomes between standard versus high offset collared stems for primary total hip arthroplasty at five years follow-up.International orthopaedics · 2024Article
- No differences in clinical and radiographic outcomes between standard offset and high offset short cementless stems.Archives of orthopaedic and trauma surgery · 2024Article
- Hip hemiprosthesis due to femoral neck fracture in the elderly population - are we doing it right?Reumatologia · 2022Article
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Authors and funding
6 authors.
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Abstract
backgroundAlthough the high offset Tri-Lock bone preservation stem (BPS) was used widely, few studies explored the clinical and radiological results. The purpose of this study was to determine the clinical and radiological results of high offset Tri-Lock BPS in unilateral primary total hip arthroplasty (THA) at a minimum follow-up of 3 years.
methods55 patients who underwent cementless THA with high offset Tri-lock BPS from 2017 to 2018 were followed for a minimum follow-up of 3 years. Patients were assessed clinically for complications, Harris hip score (HHS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), and Oxford Hip Score (OHS). Femoral offset (FO), acetabular offset (AO), hip offset (HO), HO difference, and leg length discrepancy (LLD) were measured on the anteroposterior (AP) pelvic radiograph. Standard pelvic AP and lateral radiographs were used to evaluate for evidence of bone ingrowth, stem subsidence, stem alignment, radiolucent line around the stem, osteolysis, loosening, ectopic ossification, and femoral stress shielding.
resultsNo patients reported complications during hospitalization nor the follow-up period. At a mean follow-up of 42.5 months, the mean HHS, WOMAC, and OHS scores showed a significant improvement from preoperative to the latest follow-up. No patients reported thigh pain. No revision nor sign of radiographic loosening had been detected. The high offset Tri-Lock BPS significantly improved the FO and HO postoperatively. HO difference and LLD were balanced postoperatively. No sign of stem subsidence, radiolucent line, osteolysis, loosening, ectopic ossification, nor severe stress shielding (more than grade 3-4) were observed at the latest follow-up.
conclusionThe high offset Tri-Lock BPS demonstrated excellent clinical and radiographic outcomes at a minimum follow-up of 3 years. HO difference and LLD between legs decreased significantly and achieved balance postoperatively. Long-term follow-up is required for a definitive conclusion.
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