11 ago. tratamento da fratura de Barton Volar e Dorsal. São fraturas intra articulares no terço distal do rádio que podem ser dorsal ou volar. Barton fractures are fractures of the distal radius. It is also sometimes termed the dorsal type Barton fracture to distinguish it from the volar type or reverse Barton. Fraturas do rádio distal (Fratura de Colles) . patients over 40 years old, except for cases of fractures caused by avulsion and Barton’s fracture.
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Bennett fracture is a fracture of the base of the first metacarpal bone which extends into the carpometacarpal CMC joint. Symptoms of Bennett fracture are instability of the CMC joint of the thumb, accompanied by pain and weakness of the pinch grasp.
Characteristic signs include pain, swelling, and ecchymosis around the base of the thumb and thenar eminenceand especially over the CMC joint of the thumb.
Physical examination demonstrates instability of bartn CMC joint of the thumb.
Distal Radius Fractures – Trauma – Orthobullets
The patient will often manifest a weakened ability to grasp objects or perform such tasks as tying shoes and tearing a piece of paper. Other complaints include intense pain experienced upon catching the thumb on an object, such as when reaching into a pants pocket. Many important activities of daily life are dependent on the ability to grasp, bagton, and oppose the thumb. These abilities are in turn dependent on an intact and functional thumb CMC joint.
The CMC joint of the thumb allows a wide range of motion while maintaining stability for grasp and pinch. Rfatura this in mind, failure to properly recognize and treat the Bennett fracture will not only result in an unstable, painful, arthritic CMC joint with diminished range of motion: In the case of the Bennett fracture, the proximal metacarpal fragment remains attached to the anterior oblique ligamentwhich in turn is attached to the tubercle of the trapezium bone of the CMC joint.
Frratura ligamentous attachment ensures that the proximal fragment remains in its correct anatomical position. The distal fragment of the first metacarpal bone possesses the majority of the articular surface of the first CMC joint. Unlike the proximal fracture fragment, strong ligaments and muscle tendons of the hand tend to pull dee fragment out of its correct anatomical position.
Tension from the APL and ADP muscles frequently leads to displacement of the fracture fragments, even in cases where the fracture fragments are initially in their braton anatomic position. Because of the aforementioned biomechanical features, Bennett fractures nearly always require some form of intervention to ensure healing in the correct anatomical position and restoration of proper function of the thumb CMC joint.
The Bennett fracture is an oblique intraarticular metacarpal fracture dislocation, caused by an axial force directed against the partially flexed metacarpal. This type of compression along the metacarpal bone is often sustained when a person punches a hard object, such as the skull or tibia of an opponent, or a wall.
It can also occur as a result of a fall onto the thumb. This is a common injury sustained from bike falls, as the thumb is generally extended while around the handle bars. It is also a common injury in car crashes, especially into fixed fratira, from the driver holding the steering wheel during impact.
The hand moves forward, while the steering wheel rim hyperextends the thumb. Some authors have recently made an assertion against popular belief that the APL tendon is not a deforming force on the Bennett fracture. Though these fractures commonly appear quite subtle or even inconsequential on fratuarthey can result in severe long-term dysfunction of the hand if left untreated. In his original description of this type of fracture inBennett stressed the need for early diagnosis and treatment in order to prevent loss of function of the thumb CMC joint, which is featura to the overall function of the hand.
Regardless of which approach is employed nonsurgical, CRPP, or ORIFimmobilization in a cast or thumb spica splint is required for four to six weeks. If intraarticular trapeziometacarpal fractures such as the Bennett or Rolando fractures are allowed to heal in a displaced position, significant post-traumatic osteoarthritis of the base of the thumb is virtually assured. Specifically, the overall strength of the affected hand is typically diminished, and post-traumatic osteoarthritis tends to develop in almost all cases.
The degree of weakness and the severity of osteoarthritis does however appear to correlate with the quality of reduction of the fracture. Bennett said his fracture “passed obliquely across the base of the bone, detaching the greater part of the articular surface, and barfon separated fragment was bartoon large and the deformity that resulted there-from seemed more a dorsal subluxation of the first metacarpal”.
From Wikipedia, the free encyclopedia. Archived from the original PDF on Fractures of the Metacarpal Bones. Dublin Med Sci J. Clinical Orthopaedics and Related Research A comparison between open and closed reduction”. Journal of hand surgery Edinburgh, Scotland.
Fractures and cartilage injuries Sx2— Avulsion fracture Chalkstick fracture Greenstick fracture Open fracture Pathologic fragura Spiral fracture. Basilar skull fracture Blowout fracture Mandibular fracture Nasal fracture Le Fort fracture of skull Zygomaticomaxillary complex fracture Zygoma fracture. Cervical fracture Jefferson fracture Dr fracture Flexion teardrop fracture Clay-shoveler fracture Frratura fracture Compression fracture Chance fracture Holdsworth fracture.
Rib fracture Sternal fracture.
Proximal Supracondylar Holstein—Lewis fracture. Scaphoid Rolando Bennett’s Boxer’s Busch’s. Duverney fracture Pipkin fracture. Bumper fracture Segond fracture Gosselin fracture Toddler’s fracture Pilon fracture Plafond fracture Tillaux fracture.
Maisonneuve fracture Le Fort fracture of ankle Bosworth fracture. Trimalleolar fracture Bimalleolar fracture Pott’s fracture. Lisfranc Jones March Calcaneal. Retrieved from ” https: Bone fractures Injuries of wrist and hand. Use dmy dates from November Infobox medical condition new.
Fratura de Bennett