It is named after Edward Hallaran Bennett (1837-1907), a surgeon from Dublin, Ireland. Untreated or malreduced fractures can lead to post-traumatic osteoarthritis, which can cause significant pain and functional decline. Patients over 18 years of age, who had isolated fracture at the base of the first metacarpal bone, had no previous functional limitations and pain complaints, and were regularly followed up, were included. The treatment algorithm is also influenced by the age and profession/hobbies of the patient. The 3rd metacarpal is distinguished by a styloid process on the lateral side of its base. While open reduction and internal fixation with a screw or K-wire are both common practice, screws are often preferred as K-wires must be removed after union. The 1st metacarpal is the thickest and shortest of these bones. Operative treatment is recommended for unstable fracture patterns and intra-articular displacement of >1 mm. ICD-10 code S62.2 for Fracture of first metacarpal bone is a medical classification as listed by WHO under the range - Injury, poisoning and certain other. Non-operative treatment in a thumb spica cast for 3-4 weeks can be considered in stable, non-displaced fractures. When an intra-articular fracture of the 1 st metacarpal is comminuted, producing at least three parts, it is referred to as a Rolando fracture which has a worse prognosis. lateral retraction of the first metacarpal shaft by abductor pollicis longus.small fragment of 1 st metacarpal, attached to anterior oblique ligament, continues to articulate with trapezium,. two piece fracture of the base of the thumb metacarpal base of 1st metacarpal intra-articular fracture - comminuted (3 fragments) and highly unstable axial blow to partially flexed metacarpal fracture line typically T or Y-shaped more: Rolando fracture Carpometacarpal dislocation. A metacarpal bone may fracture at the base, shaft or neck as a result of a direct blow, a fall upon the hand, or from the longitudinal force transmitted.
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