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1.
Biomed Rep ; 18(6): 42, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-37325184

RESUMEN

Numerous physiological processes occur following bone fracture, including inflammatory cell recruitment, vascularization, and callus formation and remodeling. In particular circumstances, such as critical bone defects or osteonecrosis, the regenerative microenvironment is compromised, rendering endogenous stem/progenitor cells incapable of fully manifesting their reparative potential. Consequently, external interventions, such as grafting or augmentation, are frequently necessary. In situ bone tissue engineering (iBTE) employs cell-free scaffolds that possess microenvironmental cues, which, upon implantation, redirect the behavior of endogenous stem/progenitor cells towards a pro-regenerative inflammatory response and reestablish angiogenesis-osteogenesis coupling. This process ultimately results in vascularized bone regeneration (VBR). In this context, a comprehensive review of the current techniques and modalities in VBR-targeted iBTE technology is provided.

2.
Medicine (Baltimore) ; 99(44): e23027, 2020 Oct 30.
Artículo en Inglés | MEDLINE | ID: mdl-33126390

RESUMEN

RATIONALE: Gout and gouty arthritis typically involve peripheral and monoarticular joints, especially the first metatarsophalangeal joint and knees. Hip involvement in patients with gout is rare, and its diagnosis is very difficult, especially in the late stages of the disease. Total hip arthroplasty could be a surgical treatment for atypical gouty arthritis of the hip; however, few cases have been reported. PATIENT CONCERNS: We reported an uncommon case of a 74-year-old man without typical symptoms of hip gout arthritis whom was misdiagnosed as having avascular necrosis of the femoral head. DIAGNOSES: Clinical examination and imaging revealed bilateral avascular necrosis of the femoral head. However, the final pathology report revealed left hip gout arthritis. INTERVENTIONS: The patient underwent left total hip arthroplasty and was followed up for 3years. OUTCOMES: The outcome was favorable. The function of the left hip was almost normal. LESSONS: Our case indicated the difficulty of the diagnosis of hip gout arthritis. Due to the lower rates of hip gout arthritis and lack of typical clinical examination, it is easy to misdiagnose. Furthermore, surgical treatment for the late stage of hip gout arthritis has not previously been reported. In our case, total hip arthroplasty proved to be a good option.


Asunto(s)
Artritis Gotosa/cirugía , Articulación de la Cadera , Anciano , Artritis Gotosa/diagnóstico por imagen , Artroplastia de Reemplazo de Cadera , Diagnóstico Diferencial , Humanos , Imagen por Resonancia Magnética , Masculino
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