carpometacarpal การใช้

• Early, anatomically correct drawings of the ligaments of the first carpometacarpal joints where produced by.
• If the thumb or its carpometacarpal joint is absent, centralization can be followed by pollicization.
• Type III-A has a fairly stable carpometacarpal joint and type III-B does not.
• The part of opposition that this muscle is responsible for is the flexion of the thumb's metacarpal at the first carpometacarpal joint.
• The "'posterior carpometacarpal ligament "'consists of a series of bands on the posterior surface of the carpometacarpal joints.
• The "'posterior carpometacarpal ligament "'consists of a series of bands on the posterior surface of the carpometacarpal joints.
• It also applies an extensor force at the metacarpophalangeal joint together with the extensor pollicis brevis and extends and adducts at the carpometacarpal joint of the thumb.
• Opponens minimi digiti serves to flex and laterally rotate the 5th metacarpal about the 5th carpometacarpal joint, as when bringing little finger and thumb into opposition.
• In length, the tendon passes through a long and superficial synovial sheath which, passing obliquely from the radial border of the foremarm into the thumb, extends from the proximal border of the extensor retinaculum to the first carpometacarpal joint.
• The interosseous ligaments consist of short, thick fibers, and are limited to one part of the carpometacarpal articulation; they connect the contiguous inferior angles of the capitate and hamate with the adjacent surfaces of the third and fourth metacarpal bones.
• What makes the human hand unique in the animal kingdom is the ability of the small and ring fingers to rotate across the palm to meet the thumb, owing to a unique flexibility of the carpometacarpal joints of these fingers, down in the middle of the palm.
• Placing an even greater emphasis on speed over accuracy, the "'wrist compass "'lacks even a baseplate, consisting solely of a needle capsule strapped to the carpometacarpal joint at the base of the thumb; the thumb serves the function of a baseplate when taking and sighting bearings.
• The prolongation between the greater and lesser multangulars, or that between the lesser multangular and capitate, is, owing to the absence of the interosseous ligament, often continuous with the cavity of the carpometacarpal joints, sometimes of the second, third, fourth, and fifth metacarpal bones, sometimes of the second and third only.