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However, if patients have a positive ulnar variance and focal wrist pathology, it’s possible to treat with an isolated ulnar-shortening osteotomy. In these patients the radial deformity is not treated. [5] The ulna is approached from the subcutaneous border. A plate is attached to the distal end of the ulna, to plan the osteotomy.
Possible approaches are shortening of the ulna by resection of a segment, or removing carpal bones. [6] If the ulna is significantly bent, osteotomy may be needed to straighten the ulna. [ 1 ] After placing the wrist in the correct position, radial wrist extensors are transferred to the extensor carpi ulnaris tendon, to help stabilize the wrist ...
Valgus osteotomy. The black line is the mechanical axis. Knee osteotomy is commonly used to realign arthritic damage on one side of the knee. The goal is to shift the patient's body weight off the damaged area to the other side of the knee, where the cartilage is still healthy.
An excessively long styloid process of the ulna can cause painful contact with the triquetral bone in the wrist, known as ulnar styloid impaction syndrome. [1] Radiology is used to diagnose it. [1] Conservative management involves injection of triamcinolone, while surgery involves shortening of the styloid process of the ulna via resection. [1]
Shortening of radial length more than 4mm is associated with wrist pain. [5] Ulnar variance - It is the vertical distance between a horizontal line parallel to the articular surface of the radius and another horizontal line drawn parallel to the articular surface of the ulnar head. Positive ulnar variance (ulna appears longer than radius ...
Darrach's procedure or distal ulna resection is a surgical technique for the surgical removal of the head of ulna. It is performed in cases of radial–ulnar joint pain and instability. [1] The styloid process and muscular attachments are left intact. [2] Weakness and instability can develop after the procedure.
Distraction osteogenesis (DO) is used in orthopedic surgery, and oral and maxillofacial surgery to repair skeletal deformities and in reconstructive surgery. [1] [2] [3] It was originally used to treat problems like unequal leg length, but since the 1980s is most commonly used to treat issues like hemifacial microsomia, micrognathism (chin so small it causes health problems), craniofrontonasal ...
The ulna or ulnar bone (pl.: ulnae or ulnas) [3] is a long bone in the forearm stretching from the elbow to the wrist. It is on the same side of the forearm as the little finger, running parallel to the radius, the forearm's other long bone. Longer and thinner than the radius, the ulna is considered to be the smaller long bone of the lower arm.