UNDENATURED COLLAGEN TYPE II FOR THE TREATMENT OF OSTEOARTHRITIS OF THE KNEE.

Objective: To test the hypothesis that undenatured type II collagen (UC-II) relieves pain, quality of life, and joint function in women aged from 60 to 80 years with knee osteoarthritis.

Methods: 53 patients in the UC-II treatment group (for 90 days) and 52 in the control group (without UC-II) were evaluated at 1, 30, and 90 days regarding health-related quality of life, pain, and function with questionnaires, anthropometric data, alignment, range of motion, and radiographic analysis.

Results: Quality of life increased significantly in the Physical domain in the treatment control group.

Benefits of intraoperative music on orthopedic surgeries under spinal anesthesia: A randomized clinical trial.

Objective: To determine whether instrumental music influences the anxiety status and intraoperative sedative requirements of a patient DESIGN: A single center, prospective, randomized controlled trial SETTING: Patients between 18 and 65 years, physical status of American Society of Anesthesiologists (ASA I or II) who underwent lower limb orthopedic surgery under spinal anesthesia.

Interventions: Patients were assigned to one of two groups: (1) Music Group: patients hearing instrumental music through a headset during the entire procedure or (2) No Music Group: patients wearing headphones without music MAIN OUTCOME MEASURES: Before and after the procedure, the anxiety status of the patient was assessed using the State-Trait Anxiety Inventory, and intraoperative sedative drug consumption was quantified.

Results: A total of 107 patients were analyzed.

Infectious Prophylaxis with Intrawound Vancomycin Powder in Orthopedic Surgeries: Systematic Review with Meta-Analysis.

Despite many existing strategies used to reduce the rates of surgical site infection (SSI), these are still fairly frequent complications that pose a challenge for orthopedic surgeons. Therefore, the search for more effective methods of perioperative infection prophylaxis became a main subject of research, with the goal of decreasing postoperative morbidity, mortality, and costs. Thus, the present study sought to assess the effectiveness of intra-wound vancomycin powder in orthopedic surgery SSI prophylaxis.

Management of the Knee Extension Deficit after Acute Trauma.

A 25-year-old man initially presented with right knee extension deficit after an acute trauma, caused by a condition known as arthrogenic muscle inhibition. This should not be confused with a mechanical block caused by intra-articular pathology. The loss of knee extension, even if minimal, is disabling and leads to worse results after knee surgical treatment.

Patellar position in patients with patellofemoral syndrome as characterized by anatomo-radiographic study.

Objectives: To determine the prevalence of high patella in adult patients with knee pain, and to correlate patellar height with symptoms of patellar instability, episode of patellofemoral dislocation and anterior pain in the knee; and also verify the concordance correlation between the Insall-Salvati and Caton-Deschamps indices.

Method: Cross-sectional study analyzing the medical records of patients with knee pain, using lateral view knee radiographs with 30° degrees of flexion and computed tomography. The values of the Insall-Salvati index and the Caton-Deschamps index were used to determine the patellar height.

EFFICACY OF TRANEXAMIC ACID IN REDUCING BLOOD LOSS IN TOTAL KNEE ARTHROPLASTY.

Objective: To evaluate the efficacy of tranexamic acid in reducing blood loss in total knee arthroplasty by examining the existing literature.

Method: This literature review investigated the use of tranexamic acid in knee arthroplasty. The search was performed in the Pubmed, Science Direct, Google Scholar, and Lilacs databases over a 20-year period using the keywords: "knee arthroplasty, tranexamic acid, and efficacy".

FACTORS ASSOCIATED WITH THE DEVELOPMENT OF EARLY INFECTION AFTER SURGICAL TREATMENT OF FRACTURES.

Objective: Infection after the internal fixation of fractures is a major complication. Early infection is particularly challenging, because it occurs when the fracture is not yet united. The objective of this study is to identify possible factors related to the development of early infection in patients treated with internal fixation for fractures.

Anatomical variant of the meniscus related to posterior junction: a case report.

Background: There are several reports on anatomical differences of the meniscus. However, there are only a few reports on abnormalities in both menisci and anatomical differences in anterior cruciate ligament insertions.

Case Presentation: This is a case report of a 36-year-old Hispanic man presenting symptoms, including knee pain, locking, and effusion, with an anatomical abnormality of the menisci corresponding to the fusion of the posterior horns of the menisci in tandem with the insertion of the posterior meniscus fibers in the anterior cruciate ligament.

Prophylaxis with nasal decolonization in patients submitted to total knee and hip arthroplasty: systematic review and meta-analysis.

Despite the evolution of the total knee and hip arthroplasty surgery, high postoperative complication rates in the short and long term still persist. Infection is one of the most challenging complications; due to its gravity and treatment difficulties, prophylaxis protocols have been created to decrease its incidence. The objective of this study was to evaluate the impact of the prophylaxis protocol for methicillin-resistant decolonization of the nares in patients previously identified by swab cultures, who were to be submitted to a total joint arthroplasty.

The FIFA 11+ injury prevention program for soccer players: a systematic review.

Background: Soccer is one of the most widely played sports in the world. However, soccer players have an increased risk of lower limb injury. These injuries may be caused by both modifiable and non-modifiable factors, justifying the adoption of an injury prevention program such as the Fédération Internationale de Football Association (FIFA) 11+.

Medial patellofemoral ligament and medial patellotibial ligament reconstruction in children: preliminary results.

Objective: The aim of this study was to evaluate the reconstruction of the medial patellofemoral ligament associated with the medial patellotibial ligament in skeletally immature patients.

Method: This is a case series study in patients with patellar instability with open physis. In total, seven patients were evaluated: four males and three females were operated using the proposed technique.

Osteoporosis in brazilian patients awaiting knee arthroplasty.

Objective: The primary objective of this study was to determine the prevalence of osteoporosis and osteopenia prior to total knee arthroplasty (TKA) in female patients. As a secondary objective, we evaluated the incidence of hip fractures, types of drugs to treat osteoporosis and serum vitamin D levels.

Method: This is a transversal, descriptive and observational study which evaluated 60 women above age 55 prior to total knee replacement.

LOCAL PERIARTICULAR ANALGESIA IN TOTAL KNEE ARTHROPLASTY.

Objective: To evaluate the use of infiltration of periarticular analgesic agents intraoperatively in total knee arthroplasty (TKA), with regard to benefits, reduction of pain, opioid consumption, improvement of range of motion and early ambulation.

Methods: To analyze the benefits of periarticular drug infiltration, the patients submitted to TKA were evaluated, being separated into two groups. One group received the local periarticular infiltration protocol containing 0.

Total hip arthroplasty complications in patients with or without controlled diabetes mellitus during hospitalization.

Introduction: Total hip arthroplasty (THA) is a procedure that aims to restore the function of the hip joint. Diabetes mellitus (DM) is one of the most prevalent comorbidities among patients undergoing THA. DM involves various immunological and metabolic aspects, which lead to limitations and surgical complications.

Evaluation of the isometry of different points of the patella and femur for medial patellofemoral ligament reconstruction.

Background: The location of patellar and femoral fixation of the graft in medial patellofemoral ligament reconstructions has been widely discussed. This study aimed to assess the distances between different patellar and femoral fixation points to identify the least anisometric pairs of points.

Methods: Ten cadaver knees were attached to an apparatus that simulated an active range of motion of 120°, with three metallic markers fixed onto the medial side of the patella, and seven markings onto the medial epicondyle.

Reconstruction of the medial patellofemoral ligament by means of the anatomical double-bundle technique using metal anchors.

Objective: To evaluate double-bundle reconstruction of the medial patellofemoral ligament (MPFL) using a graft from the semitendinosus tendon and fixation with metal anchors over the medium term.

Methods: This was a prospective cross-sectional study. After approval from the research ethics committee, 31 patients with patellofemoral instability who underwent MPFL reconstruction by means of the anatomical double-bundle technique, with fixation using metal anchors, were analyzed between May 2010 and January 2015.

EFFECT OF TRANEXAMIC ACID ON BLEEDING CONTROL IN TOTAL KNEE ARTHROPLASTY.

Objectives: To analyze the effectiveness of intravenous (IV) tranexamic acid (TA) in reducing blood loss in total knee arthroplasty (TKA).

Method: The population sample was composed of patients with a diagnosis of primary knee osteoarthritis. The patients undergoing TKA were divided in two groups.

Phaeohyphomycosis infection in the knee.

Phaeohyphomycosis is caused by cutaneous fungi and rarely affects large joints. This is a case report on phaeohyphomycosis in the left knee of an elderly individual without immunosuppression. It was accompanied by pain and swelling the anterior knee.

Effect of hyaluronic acid on chondrocyte apoptosis.

Objective: To determine the percentage of apoptotic cells in a contusion model of osteoarthritis (OA) and to assess whether intra-articular injection of high doses of hyaluronic acid (HA) immediately after trauma reduces chondrocyte apoptosis.

Methods: Forty knees from adult rabbits were impacted thrice with a 1 kg block released through a 1 meter tall cylinder (29.4 Joules).

BIOMECHANICAL ACCESS METHOD FOR ANALYZING ISOMETRICITY IN RECONSTRUCTING THE MEDIAL PATELLOFEMORAL LIGAMENT.

Objective: To present a biomechanical device for evaluating medial patellofemoral ligament (MPFL) reconstruction and its isometricity.

Methods: An accessible biomechanical method that allowed application of physiological and non-physiological forces to the knee using a mechanical arm and application of weights and counterweights was developed, so as to enable many different evaluations and have a very accurate measurement system for distances between different structures, for analysis on experiments. This article describes the assembly of this system, and suggests some practical applications.