Highly Cross-Linked Polyethylene in Cementless Total Hip Arthroplasty in Patients with Previous Acetabular Fractures : A Minimum 5-Year Follow-Up Study
© Indian Orthopaedics Association 2020..
BACKGROUND: Outcomes of THA after acetabular fracture are generally less favorable than those of the nontraumatic arthritis due to a higher rate of cup loosening and osteolysis. We, therefore, investigated whether highly cross-linked polyethylene liners positively impact outcomes of THA in patients with posttraumatic osteoarthritis after acetabular fracture.
METHODS: We retrospectively evaluated 39 patients with previous acetabular fracture who underwent THA using highly cross-linked polyethylene liner after a mean 8.5 year follow-up. All procedures were performed at a single institution by a single surgeon using the same type of THA implants. Wear measurements were performed using a computer-assisted PolyWare software. Osteolysis was evaluated with use of radiography and computed tomography.
RESULTS: The mean preoperative Harris hip score was 44.4 points, which improved to 93.1 points at final follow-up. Neither femoral nor acetabular components displayed mechanical loosening and no components had been revised. Radiographs and CT scans did not demonstrate osteolysis. The mean linear wear was 0.043 mm/y (range 0-0.098 mm/y). With the data available, univariate regression analysis suggests that age, gender, weight, initial fracture type, the duration of follow-up, activity level, liner thickness, acetabular cup inclination, and the necessity of bone graft had no influence on liner penetration.
CONCLUSION: While the long-term effects of the polyethylene particles from highly cross-linked polyethylene remain unknown, implant survivorship and wear data in this study are promising for this high-risk population. Our encouraging results support the continued use of this type of polyethylene in patients after acetabular fractures.
LEVEL OF EVIDENCE: Level IV Therapeutic study.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2020 |
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Erschienen: |
2020 |
Enthalten in: |
Zur Gesamtaufnahme - volume:54 |
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Enthalten in: |
Indian journal of orthopaedics - 54(2020), Suppl 2 vom: 27. Dez., Seite 239-245 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Min, Byung-Woo [VerfasserIn] |
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Links: |
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Themen: |
Acetabular fracture |
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Anmerkungen: |
Date Revised 18.04.2022 published: Electronic-eCollection Citation Status PubMed-not-MEDLINE |
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doi: |
10.1007/s43465-020-00137-z |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM317614940 |
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520 | |a © Indian Orthopaedics Association 2020. | ||
520 | |a BACKGROUND: Outcomes of THA after acetabular fracture are generally less favorable than those of the nontraumatic arthritis due to a higher rate of cup loosening and osteolysis. We, therefore, investigated whether highly cross-linked polyethylene liners positively impact outcomes of THA in patients with posttraumatic osteoarthritis after acetabular fracture | ||
520 | |a METHODS: We retrospectively evaluated 39 patients with previous acetabular fracture who underwent THA using highly cross-linked polyethylene liner after a mean 8.5 year follow-up. All procedures were performed at a single institution by a single surgeon using the same type of THA implants. Wear measurements were performed using a computer-assisted PolyWare software. Osteolysis was evaluated with use of radiography and computed tomography | ||
520 | |a RESULTS: The mean preoperative Harris hip score was 44.4 points, which improved to 93.1 points at final follow-up. Neither femoral nor acetabular components displayed mechanical loosening and no components had been revised. Radiographs and CT scans did not demonstrate osteolysis. The mean linear wear was 0.043 mm/y (range 0-0.098 mm/y). With the data available, univariate regression analysis suggests that age, gender, weight, initial fracture type, the duration of follow-up, activity level, liner thickness, acetabular cup inclination, and the necessity of bone graft had no influence on liner penetration | ||
520 | |a CONCLUSION: While the long-term effects of the polyethylene particles from highly cross-linked polyethylene remain unknown, implant survivorship and wear data in this study are promising for this high-risk population. Our encouraging results support the continued use of this type of polyethylene in patients after acetabular fractures | ||
520 | |a LEVEL OF EVIDENCE: Level IV Therapeutic study | ||
650 | 4 | |a Journal Article | |
650 | 4 | |a Acetabular fracture | |
650 | 4 | |a Highly cross-linked polyethylene | |
650 | 4 | |a Posttraumatic osteoarthritis | |
650 | 4 | |a Total hip arthroplasty | |
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700 | 1 | |a Lee, Si-Wook |e verfasserin |4 aut | |
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