Sotetsu Sakamoto

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PURPOSE To investigate the outcomes of trapeziometacarpal (TMC) joint arthrodesis for primary osteoarthritis in elderly patients in comparison with a younger cohort. METHODS We performed a retrospective study of outcomes following TMC joint arthrodesis between patients older than 65 years (elderly group) and patients younger than 55 years (younger group).(More)
A wide variety of anatomic variations of the median nerve at wrist have been reported and the awareness of these variations are essential for the surgeon treating carpal tunnel pathologies to avoid inadvertent injury to the nerve during surgery. We report a rare case of bifid median nerve accompanied by a persistent median artery found incidentally in a(More)
The importance of external rotation of the shoulder is well accepted. Patients with inadequate recovery of shoulder function after nerve transfers for a brachial plexus injury have difficulty in using their reconstructed limb. The options for secondary procedures to improve shoulder function are often limited, especially if the spinal accessory nerve has(More)
PURPOSE To report the outcomes of modified Camitz abductor plasty using the released flexor retinaculum as a pulley in patients with advanced carpal tunnel syndrome. METHODS A retrospective review of 46 hands in 43 patients who underwent modified Camitz abductor plasty was performed. Active palmar abduction of thumb and pulp pinch strength were assessed.(More)
PURPOSE To investigate the clinical outcomes of endoscopic carpal tunnel release for severe carpal tunnel syndrome in octogenarians compared with a younger cohort. METHODS Fifty-five hands in 48 patients were enrolled in this study. There were 27 hands in 24 octogenarians and 28 hands in 24 patients in a younger group with average ages of 83 and 60 years,(More)
BACKGROUND Vascular trauma associated with brachial plexus injury affects the selection of reconstructive procedures. Often, there is a paucity of appropriate recipient vessels with adequate blood flow for functioning free muscle transfer. The presence of associated vascular injuries of the subclavian or axillary artery is considered a contraindication to(More)
BACKGROUND The authors describe a new computerized tomography (CT) myelography technique with coronal and oblique coronal view to demonstrate the status of the cervical nerve rootlets involved in brachial plexus injury. They discuss the value of this technique for diagnosis of nerve root avulsion compared with CT myelography with axial view. METHODS CT(More)
Few papers have assessed the long-term functional recovery of animal limb allografts. In this study, the functional recovery of rat limb allografts was serially and quantitatively investigated for a period of 1 year. The donor's hind limb was orthotopically transplanted into the recipient. Fifteen recipients with allografts were treated with FK506.(More)
AIMS Between 2002 and 2011, 81 patients with a traumatic total brachial plexus injury underwent reconstruction by double free muscle transfer (DFMT, 47 cases), single muscle transfer (SMT, 16 cases) or nerve transfers (NT, 18 cases). METHODS They were evaluated for functional outcome and quality of life (QoL) using the Disability of Arm, Shoulder and Hand(More)
Outcomes of Kanaya's procedure for congenital proximal radioulnar synostosis varied depending on the type of radial head dislocation. In our series of 14 patients with 17 forearms who underwent Kanaya's original procedure, the postoperative total rotation arc of the forearm was unsatisfactory in cases with posterior radial head dislocation. We examined the(More)