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Metacarpal synostosis is a rare congenital difference which is characterized by the fusion of 2 (or, in rare cases, more) metacarpals of the hand, which are usually shortened. It is most commonly seen as a fusion of the 4th and 5th metacarpals. It is a type of non-syndromic syndactyly/synostosis. [1]
Hand-foot-genital syndrome (HFGS) is characterized by limb malformations and urogenital defects. Mild bilateral shortening of the thumbs and great toes , caused primarily by shortening of the distal phalanx and/or the first metacarpal or metatarsal , is the most common limb malformation and results in impaired dexterity or apposition of the thumbs.
[3] [5] The third (middle finger) metacarpal head has been reported to be the most common site of necrosis. [6] Though osteonecrosis is a fairly common condition, many cases of avascular necrosis of the metacarpal head go without being diagnosed. This is because presentation of symptoms is variable depending on the patient.
The index metacarpal is the most firmly fixed, while the thumb metacarpal articulates with the trapezium and acts independently from the others. The middle metacarpals are tightly united to the carpus by intrinsic interlocking bone elements at their bases. The ring metacarpal is somewhat more mobile while the fifth metacarpal is semi ...
Brachymetatarsia is a rare malformation that causes one or more toes to be abnormally short. The condition is characterized by a metatarsal arch shortness of more than 5 mm. The condition is more common in females, and the incidence reported in the literature ranges from 0.02% to 0.05%.
Metacarpal osteotomy was proposed as a potentially disease modifying surgery for more limited arthrosis, [24] but there is no experimental support for this theory. [ 25 ] There is limited and limited quality evidence regarding splints, corticosteroid injections, manual therapy and other palliative measures.
Archibald's sign (also known as Archibald's metacarpal sign) refers to a feature in the hand characterized by a shortening of the fourth or/and fifth metacarpals when the fist is clenched. [ 1 ] [ 2 ] [ 3 ]
Hypertrophic osteoarthropathy is one of many distant effect disorders due to cancer, with lung cancer being the most common cause but also occurring with ovarian or adrenal malignancies. A distant effect disorder, or a paraneoplastic syndrome , affects distant areas and thus is not related to local compression or obstruction effects from the tumor.