Nail Clubbing
Nail Clubbing - Related Videos
01:21
Club Goods and Public Goods
0 Views •
2025
Goods and services can be categorized based on their relative accessibility and the impact of individual consumption on other potential users. Two important classifications are club goods and public goods. These categories help explain how access to resources is managed and how their use impacts society. Club Goods Club goods are products or services that are excludable but non-rivalrous. This means that access to the good can easily be restricted, typically through a form of payment or...
01:05
Accessory Structures of the Skin: Nails
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2023
Nails are one of the important accessory structures of the skin. They are hard, protective structures that cover the dorsal surface of the distal phalanges of fingers and toes. Nails are composed of specialized keratinized cells and serve various functions, including protection, sensation, and manual dexterity. The main components of a nail include the following. Nail Plate: The nail plate is the visible portion of the nail that extends beyond the fingertips or toes. It is a hard, translucent...
07:41
An Intramedullary Locking Nail for Standardized Fixation of Femur Osteotomies to Analyze Normal and Defective Bone Healing in Mice
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Cited by 10 •
2016
This protocol describes an osteosynthesis technique using an intramedullary locking nail for standardized fixation of femur osteotomies, which can be used to analyze normal and defective bone healing in mice.
04:41
Treatment with Locking Intramedullary Nailing for Intertrochanteric Fracture of the Femur Utilizing a New Awl with a Distal Positioner
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2025
Here, we present a protocol for accessing the guidewire of intramedullary femoral nailing in obese patients using an in-house designed awl. Using the new awl with a distal positioner for the guidewire insertion and opening the bone can increase efficiency in inserting the guidewire and reduce the difficulty of surgery.
09:37
Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold
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Cited by 33 •
2015
Scaffolds capable of fitting within cranio-maxillofacial (CMF) bone defects while exhibiting osteoconductivity and bioactivity are of interest. This protocol describes the preparation of a shape memory scaffold based on polycaprolactone diacrylate (PCL-DA) using a solvent-casting particulate-leaching (SCPL) method employing a fused salt template and application of a bioactive polydopamine coating.
FAQs
Increased vascularity and connective-tissue growth within the nail bed and surrounding soft tissues contribute to enlargement of the distal digit. Remodeling of the terminal phalanx also changes the underlying structure. Together, these processes reduce the normal nail-fold angle and produce the characteristic curvature, making the physical sign a visible result of deeper tissue change.
The terminal phalanx contributes through structural remodeling rather than serving only as a passive support for the nail. As the distal bone and adjacent soft tissues change, the nail bed becomes associated with a broader fingertip and altered curvature. Assessing the nail alongside the fingertip therefore helps clinicians recognize that clubbing reflects coordinated changes in several tissues.
Clubbing may accompany pulmonary, cardiovascular, gastrointestinal, inflammatory, or malignant conditions. This broad association means the finding does not identify one specific disease by itself. Its clinical importance comes from prompting consideration of these disease categories and encouraging interpretation with symptoms, additional examination findings, and the rest of the patient’s diagnostic evaluation.
The examination includes observing nail curvature, assessing whether the nail bed feels fluctuant, and examining the profile angle between the nail and surrounding tissue. These observations provide complementary evidence of altered distal-digit anatomy. Clinicians then document the finding in relation to symptoms and other examination results rather than relying on a single visual feature.
Nail-bed fluctuation provides information about changes in the soft tissues beneath the nail. It complements inspection of curvature and measurement or estimation of the profile angle, helping clinicians evaluate the physical finding more systematically. Because the examination sign can accompany multiple conditions, this observation should be combined with the patient’s symptoms and other clinical findings.
Recognition of clubbing should guide further diagnostic evaluation when it appears as part of the overall clinical picture, particularly because it can accompany pulmonary, cardiovascular, gastrointestinal, inflammatory, and malignant conditions. The next interpretation depends on associated symptoms and examination results. Thus, the finding functions as a clinical clue that helps focus evaluation rather than as a standalone diagnosis.