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We present a supported membrane platform consisting of a fluid lipid bilayer membrane embedded with a fixed array of gold nanoparticles. The system is realized by preforming a hexagonal array of gold nanoparticles (∼5-7 nm) with controlled spacing (∼50-150 nm) fixed to a silica or glass substrate by block copolymer lithography. Subsequently, a supported(More)
Fourteen patients with chronic lunotriquetral instability were evaluated. Forced wrist extension was the most common mechanism of injury. Fourteen patients underwent lunotriquetral arthrodesis. Arthrograms were positive in 9 of the 12 performed. In three cases abnormalities not identified by arthrography were demonstrated by arthroscopy. The follow-up(More)
Sixty-seven painful pisotriquetral joints were treated by excision of the pisiform over a 30-year period. Forty-two patients had a previous history of trauma. Ulnar neuropathy was noted in 22 patients, particularly in those with associated wrist-hand fractures and subluxations or dislocations of the pisiform. The abductor and flexor digiti minimi and the(More)
Closed reductions of displaced coronal fractures of the capitellum were successfully obtained for nine patients. The method involves spontaneous reduction by allowing the elbow to fully extend under anesthesia and then gradually flexing the elbow while distracting the elbow joint. Distraction allows the radial head to capture the capitellar fragment in the(More)
The placement of fluorophores in close proximity to metal nanoparticle surfaces is proposed to enhance several photophysical properties of the dyes, potentially leading to improved quantum yields and decreased photobleaching. It is difficult in practice, however, to establish and maintain the nanoscale distances that are required to maximize these effects.(More)
Twenty-five patients with rotator cuff tears had bilateral isokinetic shoulder strength evaluations after a pain-relieving subacromial lidocaine injection. Shoulder strength testing was repeated at six months and again at 12 months after rotator cuff surgery. Strength was recorded as a ratio of peak torques comparing the operative with the nonoperative(More)
Thirty-five fingertip to palm staged flexor tendon reconstructions were performed between 1971 and 1998. Tendon injuries involved 5 avulsions and 30 lacerations, 9 of which had failed primary tenorrhaphies. Follow-up evaluation averaged 30 months. Thirteen patients had total active motion (TAM) of > or =220 degrees (excellent), 11 patients had TAM of 200(More)
Forty intact cadaver elbows were studied to determine the contribution of the capitellum to elbow stability. With the elbow at 10 degrees of flexion, valgus motion of the elbow after capitellum excision demonstrated a minimal increase. Although some increase in valgus motion did occur after capitellum excision and radial head resection it was not until the(More)
The distal finger is the most commonly injured part of the hand. Adequate initial care should lead to speedy recovery and minimal residual disability. Inadequate initial care or neglect upon the part of the patient can result in a painful and prolonged period of disability. The primary care physician sees and treats the vast majority of these injuries.
PURPOSE The purpose of this study is to report the results of intact radial collateral ligament (RCL) soft tissue sleeve advancement with bony reattachment without additional soft tissue reinforcement as the sole surgical repair technique for the treatment of grade III RCL injuries to the thumb metacarpophalangeal (MCP) joint in acute, chronic, and late(More)