Quantitative microradiography of cortical bone in disuse osteoporosis following fracture fixation

Fibrous composite materials in dentistry and orthopaedics: review and applications

“…In order to avoid ''Stress-Shielding Effect'', it is desirable to use plates whose mechanical properties are close to those of cortical bone. In the past, although many efforts were conducted to fabricate composite compression bone plates, these plates were made of unidirectional fiber laminates [78][79][80][81][82][83][84][85][86][87][88][89][90][91][92]. Therefore, the braided Carbon/PEEK composite compression bone plates of three different thicknesses and with three different braiding angles were comparatively studied in terms of their bending performance [93].…”

Stiffness and strength design of composite bone plates

“…In order to tackle aforementioned two drawbacks, polymer based composite materials, which have less stiffness, high fatigue strength, and good radiolucency, have been proposed for bone plate applications. Most composite plates developed so far have used UD (unidirectional) laminates [9][10][11][12][13][14][15][16][17] and discontinuous short fibers [18] as reinforcement. Recently, textile preforms such as braided structures have also been adopted in bone plate development [19,20].…”

Exploration of the role of serum factors in maintaining bone mass during hibernation in black bears

“…The metacarpus III of horses lose 10% of BMD after 140 days of forelimb immobilization; this loss is accompanied by an increase in the serum resorption marker crosslinked carboxyterminal telopeptide of type I collagen (CTX) with no change in the bone formation marker bone specific alkaline phosphatase (BSALP), suggesting that the loss in BMD is due to an increase in bone resorption with no change in the formation rate [82]. Cats and dogs are also vulnerable to disuse osteoporosis [14,[83][84][85]. The immobilized humeri of dogs have significantly reduced BMD as well as a 71-98% decrease in cortical strength and a 28-74% decrease in trabecular strength than the contra-lateral humeri after 16 weeks of left forelimb immobilization [14].…”