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

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:54

Enthalten in:

Indian journal of orthopaedics - 54(2020), Suppl 2 vom: 27. Dez., Seite 239-245

Sprache:

Englisch

Beteiligte Personen:

Min, Byung-Woo [VerfasserIn]
Bae, Ki-Cheor [VerfasserIn]
Cho, Chul-Hyun [VerfasserIn]
Son, Eun-Suck [VerfasserIn]
Lee, Kyung-Jae [VerfasserIn]
Lee, Si-Wook [VerfasserIn]

Links:

Volltext

Themen:

Acetabular fracture
Highly cross-linked polyethylene
Journal Article
Posttraumatic osteoarthritis
Total hip arthroplasty

Anmerkungen:

Date Revised 18.04.2022

published: Electronic-eCollection

Citation Status PubMed-not-MEDLINE

doi:

10.1007/s43465-020-00137-z

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM317614940