PURPOSE To evaluate the efficacy of arthroscopic microfracture in patients with focal full-thickness cartilage defects in the osteoarthritic knee. MATERIALS AND METHODS Seventy-six patients were enrolled in this study. They were divided into group I (n=38) who underwent microfracture plus meniscectomy and group II (n=38) who underwent only meniscectomy. Clinical and radiological evaluations w...

During a specialised orthopedic meeting held on 'the state of the art in cartilage defect repair', all previously fully-registered participants were requested to participate in an electronic survey by the use of a moderator-presented "Power Point Presentation-based" 9-item questionnaire. The aim of this survey was to assess indication, approach, and treatment execution of cartilage defect debri...

Oxidizing stimulation of organic-rich shale reservoirs, as a supplement hydraulic fracturing, was proposed to enhance gas recovery. Previous publications revealed that the interaction between and oxidative fluids causes components’ dissolution, which induces lots pores microfractures, resulting in rock microfracturing without confined pressure associated increments matrix permeability, improvin...

Deformation bands are widely formed and distributed in Triassic high-porous rocks as a result of multistage tectonic movement. In this research, core observation, the rock thin section (fluorescence casting section), FIB-SEM, X-ray diffraction, Raman laser, thermometry fluid inclusions were employed to describe macro- micro characteristics deformation their associated relationship with microfra...

The purpose of this study was to evaluate long-term outcome, following microfracture of the knee in a large patient group, using a random-effect model for longitudinal data analysis. There were 350 subjects (males, 55%; females, 65%) who underwent knee microfracture by a single surgeon between 1992 and 2002. Mean age was 48 years (range, 12-76 years). Subjective questionnaires were collected fr...

The expense, danger, planning and precision required to create explosions suggests that the computational visual modelling of explosions is worthwhile. However, the short time scale at which explosions occur, and their sheer complexity, poses a difficult modelling challenge. After describing the basic phenomenology of explosion events, we present an efficient computational model of isotropic bl...

OBJECTIVE Tissue repair that occurs after microfracture does not include hyaline-like cartilage. Therefore, other treatment modalities must be combined with microfracture to improve repair tissue quality. In this study, we combined exogenous hyaluronic acid with microfracture. DESIGN Thirty mature New Zealand rabbits were randomly divided into 3 groups as control, microfracture (MF), and micr...

We prospectively performed gamma correction pinhole bone scan (GCPBS) and histopathologic verification study to make simultaneous morphobiochemical diagnosis of trabecular microfractures (TMF) occurred in the femoral head as a part of femoral neck fracture.Materials consisted of surgical specimens of the femoral head in 6 consecutive patients. The specimens were imaged using Tc-99m hydroxymethy...

We discuss results associated with 2-D numerical simulations of in-plane dynamic ruptures on a fault governed by slip-weakening and rate-and-state friction laws with off-fault yielding. The onset of yielding is determined by aMohr–Coulomb-type criterion whereas the subsequent inelastic response is described by a Duvaut-Lions-type viscoplastic rheology. The study attempts to identify key paramet...