Skeletal Repair
Skeletal Repair - Related Videos
07:13
Applications of In Vivo Functional Testing of the Rat Tibialis Anterior for Evaluating Tissue Engineered Skeletal Muscle Repair
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Cited by 20 •
2016
We describe an in vivo protocol to measure dorsiflexion of the foot following stimulation of the peroneal nerve and contraction of the anterior crural compartment of the rat hindlimb. Such measurements are an indispensable translational tool for evaluating skeletal muscle pathology and tissue engineering approaches to muscle repair and regeneration.
02:25
Overview of DNA Repair
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2020
In order to be passed through generations, genomic DNA must be undamaged and error-free. However, every day, DNA in a cell undergoes several thousand to a million damaging events by natural causes and external factors. Ionizing radiation such as UV rays, free radicals produced during cellular respiration, and hydrolytic damage from metabolic reactions can alter the structure of DNA. Damages caused include single-base alteration, base dimerization, chain breaks, and cross-linkage. Chemically...
08:42
A Surgical Procedure for Resecting the Mouse Rib: A Model for Large-Scale Long Bone Repair
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Cited by 7 •
2015
The overall goal of this procedure is to successfully resect a portion of bone from the rib of a mouse. The procedure was developed as a model to study large-scale long bone repair.
01:54
Base Excision Repair
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2020
One of the common DNA damages is the chemical alteration of single bases by alkylation, oxidation, or deamination. The altered bases cause mispairing and strand breakage during replication. This type of damage causes minimal change to the DNA double helix structure and can be repaired by the base excision repair (BER) pathways. BER corrects damaged DNA sequences by removing the damaged base and restoring the original base sequence using the complementary strand as a template. The first step of...
09:14
Evaluation of Injury-induced Senescence and In Vivo Reprogramming in the Skeletal Muscle
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Cited by 14 •
2017
Here we present a detailed protocol to detect both senescent and pluripotent stem cells in the skeletal muscle upon injury while inducing in vivo reprogramming. This method is suitable for evaluating the role of cellular senescence during tissue regeneration and reprogramming in vivo.
FAQs
Following injury, inflammation recruits cells and signals, initiating formation of a provisional soft callus. Bone-forming activity then strengthens this repair by producing a hard callus. This sequence links early biological coordination with later structural reinforcement, giving clinicians a framework for understanding how damaged bone progresses toward restored stability and function.
Each stage contributes a different form of recovery. The soft callus provides an initial provisional response, while bone-forming activity creates a harder structure that improves skeletal stability. Remodeling then reshapes the repaired area, helping restore structural integrity over time rather than treating the hard callus as the final endpoint.
Blood supply and mechanical loading support recovery during skeletal repair. Adequate blood supply accompanies the biological activity required for rebuilding, while loading provides a mechanical context for restoring skeletal function. Their relevance explains why repair is not solely a cellular process and why clinical management must consider both biological recovery and physical stability.
Fracture stabilization supports the injured skeleton while biological repair proceeds, helping maintain the conditions needed for structural recovery. Bone grafting provides another clinical strategy used in skeletal repair, particularly when restoration requires additional support. Together with rehabilitation, these approaches connect the biological sequence of healing to efforts that restore stability, mobility, and function.
Delayed union, nonunion, and impaired healing describe unfavorable outcomes in the expected recovery process. They signal that structural restoration and functional recovery are not proceeding adequately, making them important clinical concerns. Recognizing these problems helps guide decisions about stabilization, grafting, biomaterial strategies, or rehabilitation within broader efforts to improve skeletal repair.
Research on skeletal repair informs regenerative strategies designed to restore mobility and reduce long-term disability. It also guides biomaterial design by connecting knowledge of biological stages, blood supply, mechanical loading, and structural recovery with new approaches to treatment. This research extends beyond managing individual fractures toward broader methods for restoring damaged skeletal tissues.