de Souza Márcio Passini Gonçalves
Rev Bras Ortop. 2015 Nov 17;45(3):220-9. doi: 10.1016/S2255-4971(15)30361-X. eCollection 2010 May-Jun.
Articles that update the state of knowledge regarding osteoporosis run the risk of quickly becoming obsolete because research and studies on osteoporosis today are arousing great interest among researchers, the pharmaceutical and medical equipment industries, governments and even WHO. All orthopedists know about osteoporosis because of its most deleterious effect: osteoporotic fracture. Osteoporosis without fractures does not arouse suspicion because this is a pathological condition with a nonspecific clinical profile. Osteoporotic fractures have an economic cost (from treatment), a social cost (from its sequelae) and a medical cost (from deaths). Many fractures could be avoided through diagnosing osteoporosis prior to the first fracture and thus many temporary and permanent disabilities could be avoided and many lives saved. Awareness of the risk factors for osteoporosis raises suspicions and bone densitometry aids in diagnosis. Treatment should be based on the physiopathology of the disease. Hence, for prevention or treatment of osteoporosis, the activity of osteoclasts should be diminished or the activity of osteoblasts should be increased, or both. Treatment that reduces the incidence of fractures by improving the bone geometry and microarchitecture would be ideal. Newly formed bone tissue needs to have good cell and matrix quality, normal mineralization, a good ratio between mineralized (mechanically resistant) and non-mineralized (flexible) bone, and no accumulated damage. The ideal treatment should have a positive remodeling rate and fast and long-lasting therapeutic effects. Such effects need to be easily detectable. They need to be safe.
更新骨质疏松症知识现状的文章有很快过时的风险,因为如今关于骨质疏松症的研究在研究人员、制药和医疗设备行业、政府乃至世界卫生组织中都引起了极大兴趣。所有骨科医生都了解骨质疏松症,因为它有最有害的影响:骨质疏松性骨折。没有骨折的骨质疏松症不会引起怀疑,因为这是一种临床特征不特异的病理状况。骨质疏松性骨折有经济成本(来自治疗)、社会成本(来自其后遗症)和医疗成本(来自死亡)。通过在首次骨折前诊断出骨质疏松症,可以避免许多骨折,从而避免许多临时和永久性残疾,并挽救许多生命。对骨质疏松症风险因素的认识会引发怀疑,而骨密度测量有助于诊断。治疗应基于疾病的生理病理学。因此,对于骨质疏松症的预防或治疗,应降低破骨细胞的活性或增加成骨细胞的活性,或两者皆有。通过改善骨几何形状和微结构来降低骨折发生率的治疗将是理想的。新形成的骨组织需要具有良好的细胞和基质质量、正常矿化、矿化(机械抗性)骨与非矿化(柔韧)骨之间的良好比例,且无累积损伤。理想治疗应具有正性重塑率以及快速且持久的治疗效果。这些效果需要易于检测。它们需要是安全的。