Lunotriquetralbänder

Lunotriquetralbänder refers to the ligaments that connect the lunate and triquetrum bones in the wrist. These bones are part of the proximal row of carpal bones, situated on the ulnar side of the wrist. The lunotriquetral joint is a critical articulation for wrist stability and motion, particularly during rotation and ulnar deviation. The lunotriquetral interosseous ligament is the primary stabilizer of this joint. It is a thick band of fibrous tissue that passes between the lunate and triquetrum. Additional stabilizing support is provided by the dorsal and volar lunotriquetral ligaments, which reinforce the joint capsule on its posterior and anterior surfaces, respectively. Together, these ligaments form a strong bond that helps to maintain the integrity of the lunotriquetral articulation. Dysfunction or injury to these ligaments, such as a tear or sprain, can lead to pain, instability, and restricted movement in the wrist, often referred to as lunotriquetral dissociation or instability. This condition can arise from acute trauma, such as a fall on an outstretched hand, or from chronic overuse. Diagnosis typically involves physical examination and imaging studies like X-rays or MRI. Treatment options vary depending on the severity of the injury and may include conservative measures like bracing and physical therapy, or surgical intervention in cases of significant instability.