Factors that Determine Pelvic Obliquity in Adults Who Suffered Legg-Calvé-Perthes Disease and the Role of Total Hip Arthroplasty in Its Restoration.

Background: The purpose of the study was to analyze the appearance of pelvic obliquity before total hip arthroplasty (THA) in adults who have Legg-Calvé-Perthes disease (LCPD) sequelae and its evolution in the first two postoperative years, identifying which factors influence its development.

Methods: The THAs performed between 2012 and 2021 at a single institution in adults who had LCPD during childhood were retrospectively identified. Each case was matched 1:1, based on age at surgery, sex, and body mass index, with a primary THA performed for hip osteoarthritis (primary OA).

Outcome measures and survivorship following total hip arthroplasty in adolescent population.

Background: The most frequent indication for total hip arthroplasty (THA) in adolescent patients has been juvenile idiopathic arthritis (JIA). However, in recent years, other causes have become more prevalent.

Questions/purposes: (1) What is the survivorship following THA across the diagnostic spectrum in adolescent population? (2) How are quality of life results affected by systemic medical conditions?

Methods: We retrospectively reviewed all consecutive THA in patients under 21 years of age, performed at our Institution between 1993 and 2018.