[Avascular necrosis of the femoral head after COVID-19: clinical presentation and management. Clinical-functional outcomes of decompression and supplementation with bone marrow cell aspirate].

Introduction: the pandemic of COVID-19 has led to clinical complications such as avascular necrosis of the femoral head (AVNFH) associated with the use of corticosteroids. The aim of the study is to report the functional and radiographic results of 13 patients with post-COVID-19 ANFH after decompression using Forage and bone marrow aspirate concentrate (BMAC).

Material And Methods: single-center, prospective, uncontrolled clinical study.

Early postoperative complications of thoracolumbar fractures in patients with multiple trauma according to the surgical timing.

Introduction And Objectives: Our objective was to compare the rate of complications in thoracolumbar fractures that occurred during the early postoperative period in patients with multiple high-energy trauma according to the time of surgery. As a secondary objective, to estimate which variables were associated with surgery before 72 h.

Material And Methods: Retrospective analysis of a series of patients with thoracolumbar fractures and multiple associated injuries in other anatomical regions due to high energy trauma.

[Radiological and functional results in high-energy tibial plate fractures].

Introduction: The tibial plateau fractures due to high-energy mechanisms are serious injuries that occur on a load bearing joint. These are difficult to approach because, also affect the bone structure of the leg, they usually have associated soft tissue injuries.

Objective: To evaluate the radiological and functional results of high-energy tibial plateau fractures with a minimum follow-up of one year.

Early postoperative complications of thoracolumbar fractures in patients with multiple trauma according to the surgical timing.

Introduction And Objetctives: Our objective was to compare the rate of complications in thoracolumbar fractures that occurred during the early postoperative period in patients with multiple high-energy trauma according to the time of surgery. As a secondary objective, to estimate which variables were associated with surgery before 72h.

Material And Methods: Retrospective analysis of a series of patients with thoracolumbar fractures and multiple associated injuries in other anatomical regions due to high energy trauma.

Conversion total hip arthroplasty with a proximally modular, distal fixation reconstruction prosthesis following cephalomedullar nail failure.

Background: The goals of intertrochanteric hip fracture (IHF) treatment are stable fixation, early mobilisation and function restoration. If the attempt to reduce, stabilise and fracture healing utilising a femoral cephalomedullar nail (CMN) fails, options for subsequent attempts are limited.

Purpose: Evaluate the clinical and radiographic outcomes of conversion total hip arthroplasty (THA) using a modular stem following a CMN failure.