Preliminary study on the potential damage of cigarette smoke extract in 3D human chondrocyte culture.

Osteoarthritis (OA) is a chronic degenerative disease characterized by the progressive loss of articular cartilage. The role of cigarette smoke (CS) in OA is debated, with some studies suggesting a protective effect while others indicate it may pose a risk. Our preliminary findings suggest a link between smoking in young adults and severe knee OA, though the extent of this contribution is unclear.

Interplay of calcium pyrophosphate crystals, oxidative stress, and clinical features on knee osteoarthritis severity.

Background: Deposition of calcium pyrophosphate (CPP) crystals is observed in most joints affected by severe osteoarthritis (OA). CPP may cause local damage by inducing an inflammatory process and oxidative stress (OS).

Objectives: To evaluate inflammation and OS induced by CPP deposition and their association with the degree of knee OA.

An update on the study of synovial fluid in the geriatric patient.

Background: The characteristics of synovial fluid (SF) in geriatric patients differ from those in younger patients. In Mexico, epidemiologic data on the incidence of different rheumatic diseases in geriatric patients are scarce.

Objective: To describe the physical characteristics of geriatric SF and the prevalence of crystals in knee and other joint aspirates from patients with previously diagnosed joint disease.

Effect of smoking on the redox status of knee osteoarthritis: A preliminary study.

Even though smoking has been scarcely studied in osteoarthritis (OA) etiology, it is considered a controversial risk factor for the disease. Exposure to tobacco smoke has been reported to promote oxidative stress (OS) as part of the damage mechanism. The aim of this study was to assess whether smoking increases cartilage damage through the generation of OS.

[Incidence of hip and knee prosthetic infections in a specialized center of Mexico City].

Background: Hip and knee prosthetic replacements have proven to be the most appropriate treatment in the joints that do not benefit from medical or arthroscopic interventions; however, infections are the most feared complication. It is recommended that the incidence of infection should not exceed 2%.

Material And Methods: This was an observational, prospective, longitudinal and observational study conducted in patients fitted with a prosthetic joint from August 2011 to July 2012.

[Total hip arthroplasty in patients with cerebral vascular event. Case report].

Introduction: Associated neurological disorders pose a challenge hip joint reconstruction. The imbalance and poor muscle tone predispose to dislocation and loosening of the prosthesis.

Clinical Case: The following is the case of a 67 years old patient with a hemorrhagic cerebral vascular event with a secondary left hemiparesis.

[Functional outcomes in patients subjected to acetabular revision with reinforcement rings].

Background: Total hip arthroplasty is the most successful orthopedic procedure and the frequency of use of revision components has grown exponentially. The increased number of revisions results from the longer life expectancy of the population and the greater frequency of the hip arthroplasty indication among young patients. The purpose of this study is to evaluate the functional results of patients subjected to revision of the acetabular component using reinforcement rings.

[Surgical treatment of hip osteoarthritis: update in total hip arthroplasty].

Total hip replacement is one of the most successful procedures in orthopaedic surgery. There are two different technologies for implant fixation in total hip replacement: cemented and cementless, both can be combined, which is called Hybrid arthroplasty. Long term implant stability results in long term function.

[Surgical treatment of hip osteoarthritis: hpdete on hip arthroscopy].

Arthroscopic surgery of the hip is a routine procedure in an increasing number of institutions around the world. Indications for this procedure increase as more experience is developed. Thanks to hip arthroscopy some intraarticular lesions like labral or ligamentum teres tears and cartilage lesions have been recognized.