ORIGINAL ARTICLE   

Minerva Orthopedics 2022 June;73(3):294-8

DOI: 10.23736/S2784-8469.21.04138-9

Copyright © 2021 EDIZIONI MINERVA MEDICA

language: English

Trends in total hip arthroplasty over the last six years in a large teaching hospital in Northern Italy

Alessandro APRATO ¹ ✉, Cecilia D’ORIA ¹, Francesco LIBERACE ¹, Silvia FERRO ², Marina TORRE ³, Alessandro MASSÈ ¹

¹ University of Turin, Turin, Italy; ² Settore Regionale Assistenza Farmaceutica, Integrativa e Protesica, Regione Piemonte, Turin, Italy; ³ Segreteria Scientifica della Presidenza, Istituto Superiore di Sanità, Rome, Italy

BACKGROUND: Total hip arthroplasties (THA) have constantly increased in the last two decades meanwhile materials and surgical technique have been changed and improved. Aim of this study is to describe demographic and clinical data of patients who underwent THA in five years period in a large teaching hospital and to describe the trends in devices sizes, materials, method of fixation and surgical approach.
METHODS: This retrospective study includes all the primary THA procedures carried out in a teaching hospital between January 1^st, 2014 and December 31^st, 2019. Clinical and surgical data were retrieved from hospital medical records: age and gender of patients, year of surgery, side of THA, diagnosis, any previous surgery, surgical approach, acetabular and femoral fixation methods, type, materials and sizes of implanted devices (cup, liner, stem and head).
RESULTS: The sample of patients (2264) underwent 2283 primary THA. Mean age was 65 years. 55.57% of patients were female. Number of bilateral THA increased in the last five years (from 0.24% in 2014 to 1.81% in 2019). Primary hip-arthritis was the main cause of surgery with almost 57.64%; 10.82% male patients and 22.50% female patients underwent THA for femoral fracture. 94.96% THA were performed preferring posterolateral approach. Cementation of femoral component was performed in 3.07% male patients and in 10.36% female patients. The most recurring cup size was 52 mm (22.79%) and 50 mm (21.14%). Ceramic liners were used in 57.51% THA whereas Polyethylene liners were preferred in 31.87% THA. Ceramic heads were mostly 36 mm size (42.95%) and 32 mm (38.93%).
CONCLUSIONS: Our study shows a prevalence of posterolateral approach, uncemented stem with ceramic liners and 32/36 mm ceramic heads. Bilateral THA, anterior approach and uncemented cup, have consolidated their role in the last five years.

KEY WORDS: Hip replacement arthroplasty; Teaching hospitals; Orthopedic procedures