Analysis of the distribution of mechanical load on the plate and lateral hinge of a valgus-producing open wedge high tibial osteotomy during weight-bearing by simulating consolidation. Finite element study.

Introduction: High tibial osteotomy (HTO) is indicated for managing isolated medial knee osteoarthritis in a young patient with a metaphyseal deformity of the proximal tibia. In a medial open-wedge HTO, maintaining the integrity of the hinge is crucial for consolidation and preservation of the correction. Based on a validated model and preliminary results, the objective of this work was to measure and monitor the distribution of mechanical load on a locking fixation plate and the lateral hinge of an HTO using a finite element (FE) model during different phases of consolidation evolution, simulating single leg weightbearing.

Medial posterior tibial slope measurements are overestimated on long radiographs and 3D CT compared to measurements on short lateral radiographs.

Purpose: This study assessed the measurements of the medial posterior tibial slope (MPTS) using long radiographs and three-dimensional (3D) computed tomography (CT) scans and compared them to measurements taken on short lateral knee radiographs. The study aimed to identify whether the at-risk slope measurements previously defined on the short radiographs would be similar to long radiographs and 3D CT scans.

Methods: A retrospective radiological review of 52 cases, who underwent planning for a slope-changing high tibial osteotomy and had short and long lateral radiographs and 3D CT scans of the tibia.

Superior pain relief and quality of life with autografts using semitendinosus or patellar ligament compared to allografts in meniscal reconstruction: A 2-year prospective comparative study.

Purpose: This study aims to compare the 2-year clinical outcomes of meniscal reconstructions using allograft versus autograft tissue, with a focus on patient-reported outcomes, complication rates and surgical revision rates.

Methods: This prospective comparative cohort study included 60 patients (ages 18-60 years) undergoing meniscal reconstruction. Patients were divided into an allograft group (n = 31) and an autograft group (n = 29; Hamstring tendon = 25 and patellar tendons = 4).

Quadriceps tendon autograft diameters are routinely above 8 mm, and preoperative size estimation before anterior cruciate ligament reconstruction may not be necessary for this graft type: A systematic review.

Purpose: To identify values of reported quadriceps tendon (QT) autograft diameter and length in anterior cruciate ligament reconstruction (ACLR), and to identify methods to predict these parameters.

Methods: A search was conducted across three databases from inception to 30 March 2024. Data on study characteristics, demographics, anthropometric data, imaging techniques, and QT autograft or harvested QT tendon parameters were extracted.

Wild bees (Apoidea, Anthophila) of south-west France: more than 10 years of inventories in mosaic landscapes of "Vallées et Coteaux de Gascogne" (ZA-PYGAR).

Background: The reported massive decline of arthropods and particularly of pollinators such as wild bees, in terms of abundance and richness, is a threat for crop production and wild plant biodiversity conservation. This decline is mainly explained by a combination of drivers at local- and landscape-scale related to intensive farming practices. Assessing the evolution of wild bee communities in agricultural ecosystems and their response to such practices is needed to address conservation purposes.