The roentgen appearance and pathogenesis of carpal instability are described in an evaluation of patients and cadavers with rheumatoid arthritis and calcium pyrophosphate deposition disease. Dorsiflexion (16%) and palmar flexion (8%) instability occurs in rheumatoid arthritis, particularly in patients with moderate to advanced disease. Navicular-lunate dissociation frequently accompanies dorsif...

Devastating perilunate injuries are rare, compromising of less than 10% of wrist injuries. We report a 19-year-old worker man who presented with left wrist pain and swelling after falling from a height. Not only the lunate was seen in middle third of forearm, but also proximal part of the scaphoid was in distal forearm. Open reduction and internal fixation was done via volar approach. He came b...

Kienböck’s disease or lunatomalacia is an aseptic osteonecrosis of the lunate bone initiating a progressive collapse of the lunate bone, followed by total carpal collapse. The first description was made one hundred years ago (107). Thus far, its exact cause and natural history remain unknown (44). Several extrinsic and intrinsic factors have been investigated as to their role in the aetiology o...

ABSTRACT
 
 Background: When pain, deformity and instability compromise wrist function, stabilization by means of fusion is a procedure recognized validity. The goal arthrodesis to provide the patient with stable for power grip predictable relief pain while sacrificing motion. radioscapholunate (RSL) one salvage indicated in case traumatic or degenerative osteoarthritis radiocarpal jo...

We report a case of a symptomatic unicameral (simple) bone cyst of the lunate in a 42-year- old woman. The lesion was treated with curettage and cancellous autogenous iliac bone grafting. At five years of follow-up the wrist was pain free, there were no limitations of motion, and the radiographs showed complete obliteration of the cavity. To the best of our knowledge, no other unicameral bone c...

Figure 1. Preoperative posteroanterior radiographs showing progressive fragmentation and collapse of the lunate, as well as subsequent pathologic fracture of the scaphoid.

BACKGROUND There are no established guidelines on the age or the severity of deformity for which an ulna shortening osteotomy or ulna epiphysiodesis should be performed in children and adolescents with Madelung deformity. The purpose of this study was to identify radiographic criteria associated with the eventual performance for an ulna shortening procedure in this patient population. METHODS...

QUESTION What is the diagnostic value of provocative wrist tests and magnetic resonance imaging (MRI) for suspected wrist ligament injuries? DESIGN Cross-sectional study. PARTICIPANTS 105 people presenting to hand clinics with wrist pain and suspected wrist ligament injuries were evaluated prospectively. OUTCOME MEASURES The integrity of wrist ligaments was tested with seven provocative t...