Duffield Ashmead

Learn More
Patients with scapholunate advanced collapse (SLAC) wrist do not have to undergo total wrist arthrodesis; the SLAC pattern spares the radiolunate articulation, providing a basis for salvage. We report the results of 100 cases in which a technique comprised of scaphoid excision and limited wrist arthrodesis was used. The average followup period of 44 months(More)
Scaphoid manipulation is an important part of the examination of the wrist. The "scaphoid shift" is a maneuver that is helpful in assessing scaphoid stability and in identifying scaphoid and periscaphoid pathology. The anatomic basis of the maneuver is explained and its performance and interpretation discussed.
Limited wrist arthrodesis is a useful method for treating specific carpal disorders that maximizes residual wrist motion and strength while eliminating pain. Selective fusion of specific carpal units can be used in degenerative arthritis, rotary subluxation of the scaphoid, midcarpal instability, scaphoid nonunion, Kienbock's disease, and congenital(More)
Rigid internal fixation with plates and screws for osteosynthesis of facial fractures and osteotomies in the cranio-maxillofacial skeleton is often undertaken in situations in which the exact position of the underlying tooth roots cannot be determined. Therefore, a screw may be inadvertently placed into a root. There is scant data in the literature(More)
A retrospective review of patients with carpal tunnel syndrome (CTS) identified 20 patients (26 wrists) who had persistent or recurrent CTS after having undergone endoscopic carpal tunnel release (ECTR). Seven wrists never had relief of the original CTS symptoms; for the remaining 19 wrists, the average time to recurrence of CTS following ECTR was 4.8(More)
PURPOSE The purpose of this study was to review the results of 800 scaphotrapeziotrapezoid fusions performed over a 27-year period. METHODS The patients were evaluated for postoperative range of motion, grip and pinch strength, pain, return to work, arthritis, and complications. RESULTS The overall range of motion was 70% to 80% of the nonoperated side(More)
The cause of the wrist ganglion is uncertain. We reviewed our experience with rotary subluxation of the scaphoid after ganglion excision. Seventeen patients had triscaphe arthrodesis for treatment of rotary subluxation of the scaphoid at an average of 35 months (range, 6 to 130 months) after ganglion excision. In addition, dynamic or static rotary(More)
Thirty-five consecutive applications of external fixation to the hand, including 27 acute cases and 8 reconstructive procedures, were studied. In both settings, external fixation was used not only for skeletal stabilization but also for management of the soft tissues. Twenty of the 22 acute fractures healed, and six arthrodeses with interposition bone(More)
The surgical approach for treatment of scaphoid nonunion usually involves various combinations of screws and Kirschner wires, with or without bone grafts. This article reports our results with 36 dorsal-approach bone grafting procedures for treatment of scaphoid nonunion with Kirschner wires. Union was achieved in 89%. The average follow-up was 5 years.(More)
This study was undertaken to evaluate the patency rate of radial and ulnar artery repairs performed with use of the magnification afforded by the operative microscope. Color Doppler ultrasonographic imaging was chosen as a reproducible, noninvasive technique to evaluate patency and graphically display vascular flow characteristics. Twenty-eight consecutive(More)