Can we trust the accuracy of the automatic calibration of the EOS system to measure lower limb length inequality after total hip arthroplasty? Comparison of EOS versus manual measurement on 110 calibrated radiographs.

Introduction: Traditionally, to determine a length on a limb radiograph after total hip arthroplasty (THA), calibration is performed manually with the diameter of a ball or the femoral head. More recently, the development of EOS with automatic calibration has called into question the usefulness of manual calibration to highlight lower limb length inequality (LLLI). However, the validation of EOS with automatic calibration without landmarks to measure length inequalities on large images has not been verified against manual measurements on calibrated radiographs (conventional method), which motivated the present work.

Academic impact of French Hip & Knee Surgery Society (SFHG): A bibliometric analysis.

Introduction: The French Hip & Knee Surgery Society (SFHG) brings together French-speaking hip and knee expert surgeons. There has been an exponential growth of orthopaedic surgical activity over the last decade and hip and knee surgery clinical research has had a similar growth. Despite this, the SFHG's contribution to the orthopaedic literature remains poorly known.

New comprehensive score for predicting difficulties in revision total hip arthroplasty.

Background: Revision total hip arthroplasty (THA) can be complex, and assessing possible difficulties is important to predict the operative time. No simple score for predicting difficulties has been assessed prospectively. We therefore developed an original score for the pre-operative evaluation of extraction and reconstruction difficulties.

What is the clinical detection threshold for lower limb length inequality? In silico study of reproducibility and optimization using a centimeter graduated support.

Introduction: The threshold of a Leg Length Discrepancy (LLD) by clinical examination on a sheet or centimeter paper (CP) is not known precisely whether or not it concerns limbs equipped with a hip prosthesis. We therefore conducted a prospective in silico study in order to: (1) determine the reproducibility and sensitivity of the clinical measurement of the LLD in different ideal and "degraded" clinical situations, (2) determine the threshold from which the human eye is capable of detecting a length inequality in clinic, (3) to determine whether the use of a graduated support (centimeter paper) improves the clinical measurement threshold.

Hypothesis: Our hypothesis was that clinical measurement on a centimeter support would improve clinical measurement accuracy.

No differences in clinical and radiographic outcomes between standard offset and high offset short cementless stems.

Purpose: To compare clinical and radiographic outcomes of total hip arthroplasty (THA) using standard offset versus high offset short cementless stems.

Methods: We reviewed a consecutive series of 204 primary THAs performed over 5 years using a short cementless collared stem. At a minimum follow-up of 2 years, 6 patients had deceased, 6 were not evaluated radiographically and, 2 were lost to follow-up.