Heterotopic ossification following total hip arthroplasty. Which is the predominant risk factor: surgical approach or post-operative prophylaxis?

Purpose: To investigate the impact of surgical approach and post-operative prophylaxis on heterotopic ossification (HO) development after total hip arthroplasty (THA).

Methods: A retrospective analysis of 312 patients who underwent THA between January 2009 and April 2016. Patients were categorized by surgical approach (direct lateral or posterolateral), prosthesis type, and post-operative prophylaxis (Etoricoxib 60 mg daily for two weeks).

Adaptive Bone Remodeling With New Design of the ABG Stem. Densitometric Study.

To establish the pattern of bone remodeling caused by a cementless, anatomic implant, we intend to evaluate the changes in bone mineral density observed after surgery in the Gruen zones. A controlled, prospective study was carried out, in which a group of 37 patients with primary coxarthrosis were densitrometrically analyzed over the 1 year period following the implant of an ANATO stem (Stryker). The patient's healthy hip was taken as the control.

[Supernumerary muscular masses of the anterior thoracic wall. Case report and review].

Introduction: On the anterior thoracic wall, some supernumerary muscular masses can be present, like the sternalis muscle, which is situated over the pectoralis major muscle fascia, deep to the subcutaneous tissue. Its fibers can be parallel or oblique to the sternum, and are clinically important due to the possibility that during certain radiologic procedures they can be confused with some types of breast pathologies.

Material And Methods: Bibliographic review of supernumerary muscular masses of the anterior thoracic wall and case report in a colombian male cadaver of mixed ethnia, dissected by medical students at the Department of Morphology at the Universidad del Valle, in Cali, Colombia.

[Results after surgical treatment of giant cell tumor].

Introduction: giant cell is a tumor that appears in young adults, requirirng surgical treatment due to its metastatic capacity, but recurrence rates makes no consensus about theraperutic management.

Methods: 23 patients were operated between 1996-2012 at Miguel Servet hospital, performing a mean of 8.9 years follow-up.