Gap Balance Assessment
Gap Balance Assessment - Related Videos
07:03
Assessment of Motor Balance and Coordination in Mice using the Balance Beam
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Cited by 395 •
2011
Deficits in fine motor coordination can be assessed with the balance beam test. Performance on the beam is quantified by the speed at which the beam is traversed and the number of times the mouse slips on the beam.
07:33
In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty
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Cited by 2 •
2023
This protocol presents a cadaveric study of a wireless sensor used in medial unicompartmental knee arthroplasty. The protocol includes the installation of an angle measuring device, standardized Oxford unicompartmental knee arthroplasty osteotomy, preliminary assessment of flexion-extension balance, and application of the sensor to measure flexion-extension gap pressure.
02:58
Balancing Redox Equations
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2020
Electrochemistry is the science involved in the interconversion of electrical and chemical reactions. Such reactions are called reduction-oxidation, or redox reactions. These important reactions are defined by changes in oxidation states for one or more reactant elements and include a subset of reactions involving the transfer of electrons between reactant species. Electrochemistry as a field has evolved to yield sufficient insights on the fundamental principles of redox chemistry and multiple...
01:37
Gap Junctions
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2026
Multicellular organisms employ a variety of ways for cells to communicate with each other. Gap junctions are specialized proteins that form pores between neighboring cells in animals, connecting the cytoplasm between the two, and allowing for the exchange of molecules and ions. They are found in a wide range of invertebrate and vertebrate species, mediate numerous functions including cell differentiation and development, and are associated with numerous human diseases, including cardiac and...
09:05
Balance and Coordination Testing
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2023
Balance and coordination are critical components involved in the control of movement. Many sensory receptors and neural processing units are required to help individuals maintain balance while performing various activities. Deficits in balance and coordination occur in patients suffering from movement disorders or due to aging. Therefore, scientists are trying to understand the pathophysiology behind these conditions. One way to do that is by using rodent models and testing them on behavioral...
FAQs
Comparing the two spaces shows whether the knee remains consistently aligned and stabilized through different positions. Surgeons can identify differences between flexion and extension, then determine whether the imbalance relates to bone preparation or soft-tissue tightness. This information guides adjustments to ligament tension and implant positioning before final components are placed.
Medial and lateral differences indicate whether load and stability are distributed evenly across the knee. Controlled comparison helps reveal asymmetry that may affect joint stability, range of motion, or implant positioning. Addressing these differences during surgery can support a more balanced reconstruction and reduce the likelihood of postoperative instability.
Controlled varus-valgus stress helps surgeons evaluate how the medial and lateral sides respond when the knee is gently challenged from side to side. This reveals whether ligament tension is appropriately matched across the joint. The resulting information supports targeted soft-tissue adjustments rather than relying only on the appearance of the prepared bone surfaces.
After bone preparation, the surgeon assesses the knee with spacer blocks and trial components. The medial and lateral spaces are compared in flexion and extension while controlled varus-valgus stress evaluates stability. If the spaces are not appropriately matched, the surgeon can adjust ligament tension or respond to issues associated with the bone cuts before completing the replacement.
Spacer blocks provide a way to compare the available spaces after bone cuts, while trial components allow assessment under conditions that more closely represent the intended reconstruction. Used together, they help the surgeon examine alignment, ligament tension, and stability across flexion and extension. Their findings inform intraoperative adjustments before definitive implant positioning.
Gap balance assessment is useful whenever the surgeon needs to verify that bone preparation and soft-tissue tension produce a stable, well-aligned knee. It provides information for decisions about ligament tension and implant positioning, while also helping address imbalances during the operation. In medicine, its relevance lies in supporting motion, load distribution, and functional recovery after knee replacement.