SMOKING AND MODIC CHANGES IN PATIENTS WITH CHRONIC LOW BACK PAIN: A COMPARATIVE STUDY.

Objective: To compare the prevalence of smokers among patients with chronic low back pain, in the presence and absence of Modic changes, also the correlation between smoking history and progression of the Modic scale.

Methods: Observational study, case-control type, with the inclusion of 340 vertebral segments in a total of 68 patients, separated into groups: with Modic (case group) and without Modic (control group). The odds ratio between the groups was verified using the Chi-Square test.

LATERAL EPICONDYLE SLIDING OSTEOTOMY IN KNEE ARTHROPLASTIES WITH VALGUS DEFORMITY.

Objective: To evaluate the efficacy and safety of sliding osteotomy of the lateral epicondyle in correcting rigid valgus deformity in knee arthroplasty.

Methods: A retrospective study of patients undergoing total knee arthroplasty with lateral epicondyle sliding osteotomy between 2006 and 2018. The main outcome was the incidence of complications and adverse events.

Challenges of Implementing a Human Multi-Tissue Bank in a Public Hospital in the Interior of São Paulo: Under the Light of the Quality Management System.

Background: Human multi-tissue banks (HMTB) are important health institutions specialized in the capture, processing, and distribution of human tissues for transplants and research, aiming for safety and quality in the supply of their products, intended for reconstructive surgeries and injury repair, in addition to contributing to the advancement of research developed in regenerative medicine. This study aims to report and share the experience of implementing an HMTB, as well as creating an institution's own quality management system.

Methods: This is a descriptive study, an experience report type, which identifies historical aspects of an HMTB's actions in the 5 years of implementing and operating the service.

EPIDEMIOLOGY OF POST-TRAUMATIC SPINAL CORD INJURY IN A TERTIARY HOSPITAL.

Objective: to outline the profile of risk groups for spinal cord injury (SCI) at the Hospital de Clinicas de Campinas by an epidemiological survey of 41 patients with SCI.

Methods: Data from patients with SCI were collected and analyzed: demographic data, level of neurological injury, visual analogue scale (VAS), and the current American Spinal Injury Association (ASIA) impairment scale (AIS), using questionnaires, medical records, and imaging tests. Fisher's exact test was used to assess the relationship between categorical variables, Spearman's correlation coefficient was used for numerical variables, and the Mann-Whitney and Kruskal-Wallis tests were used to analyze the relationship between categorical and numerical variables, with significance level of 5%.

Is There Any Association between the Severity of Disc Degeneration and Low Back Pain?

 To access the possibility that higher degrees of disc degeneration lead to higher levels of pain and dysfunction.  Magnetic resonance imaging (MRI) scans of 85 patients with low back pain lasting for more than 12 weeks were evaluated, and the degree of disc degeneration was quantified according to the Pfirrmann grading system. The Pfirrmann degree in each disc space from L1-L2 to L5-S1, the maximum degree of Pfirrmann (Pfirrmann-max) between the lumbar discs, and the sum of Pfirrmann (Pfirrmann-sum) degrees were correlated (through the Spearman test) with the Oswestry Disability Index (ODI) and the Visual Analogical Scale (VAS) for pain.

Superior Dislocation of the Patella in a Young Patient without Osteophytes: A Case Report with Discussion about Differential Diagnosis.

We report a case of superior dislocation of the patella in a young woman without degenerative changes. We retrospectively analyzed the clinical and imaging data obtained from the patient. This article describes a rare case of patellar dislocation following a bicycle fall in a 19-year-old woman without any history of patellofemoral complaints.

Proposal for a New Histological Scoring System for Cartilage Repair.

Objective: This study aimed to develop a new histological scoring system for use in a partial-thickness cartilage repair animal model. Although previous papers have investigated the regeneration of articular cartilage, the good results achieved in small animals have not been replicated in large animal models or humans, possibly because of the frequent use of models with perforation of the subchondral bone plates. Partial-thickness lesions spare the subchondral bone, and this pattern is the most frequent in humans; therefore, new therapies should be tested using this model.

PREVALENCE OF JOINT PAIN AND OSTEOARTHRITIS IN OBESE BRAZILIAN POPULATION.

Background: High body mass index, as well as maintaining this condition for a long period of time, are important risk factors for the development of osteoarthritis.

Aim: To determine joint pain and osteoarthritis prevalence in patients referred to bariatric surgery.

Methods: Morbidly obese patients referred to bariatric surgery responded to the visual analogue pain scale (VAS) and the WOMAC questionnaire.

Gait analysis in short-term follow-up of medial opening wedge high tibial osteotomy.

Background: Biomechanical gait changes are proposed as adaptations to medial knee osteoarthritis (OA), and little is known about which parameters can be modified early by high tibial osteotomy (HTO) surgery. The aim of this study was to identify early gait changes in a postoperative period of 6 months as compared to a control group, in three different spatial planes.

Methods: Twenty-one patients with OA were submitted to three-dimensional gait analysis preoperatively and 6 months after HTO surgery.

Comparison of Puddu osteotomy with or without autologous bone grafting: a prospective clinical trial.

Objectives: To test the hypothesis that autologous iliac bone grafts do not enhance clinical results and do not decrease complication rates in patients undergoing medial opening-wedge high tibial osteotomy.

Methods: Forty patients allocated in a randomized, two-armed, double-blinded clinical trial were evaluated between 2007 and 2010. One group received bone graft, and the other group was left without filling the osteotomy defect.

Natural Type II Collagen Hydrogel, Fibrin Sealant, and Adipose-Derived Stem Cells as a Promising Combination for Articular Cartilage Repair.

Objective Articular cartilage is an avascular tissue with limited ability of self-regeneration and the current clinical treatments have restricted capacity to restore damages induced by trauma or diseases. Therefore, new techniques are being tested for cartilage repair, using scaffolds and/or stem cells. Although type II collagen hydrogel, fibrin sealant, and adipose-derived stem cells (ASCs) represent suitable alternatives for cartilage formation, their combination has not yet been investigated in vivo for focal articular cartilage defects.

Keblish's lateral surgical approach enhances patellar tilt in valgus knee arthroplasty.

Objective: To compare the clinical and radiological outcomes of conventional medial and lateral approaches for total knee replacement in the valgus osteoarthritic knee.

Methods: In this randomized controlled trial, 21 patients with valgus knee osteoarthritis were randomized to total knee replacement through medial or lateral approach. The primary outcome was radiographic patellar tilt.

Isokinetic evaluation after two-stage bicruciate reconstruction.

Objective: To assess the functional balance of the knee after bicruciate reconstruction and its correlation with clinical score.

Methods: 14 patients (11 men and three women), mean age 29.9±7.

Biomechanical changes in gait of subjects with medial knee osteoarthritis.

Objective: Demonstrate the presence and magnitude of biomechanical variables during gait in patients with medial knee osteoarthritis (OA) and the relationship with the knee loading.

Methods: Gait of 21 subjects diagnosed with medial knee OA was evaluated and compared to the control group.

Results: THE GROUP WITH OA SHOWED: Lower gait speed (0.

Opening-wedge high tibial osteotomy with and without bone graft.

Medial opening-wedge has gained popularity in comparison to other techniques of high tibial osteotomy. This technique involves the creation of a gap in the tibia. Filling the gap with autologous iliac bone graft was recommended in the classic description, to prevent complications such as correction loss or delayed bone union.