Sarcomere number change was investigated in an animal model of tendon transfer. In 9 adult New Zealand white rabbits, the flexor digitorum longus muscle was cut distally and transferred and woven into the tibialis anterior tendon. Ankles were then immobilized for 3 weeks in 75 degrees flexion. Transferred flexor digitorum longus muscles were harvested and complete architectural analysis was per...

Tuberculous infection of the hand is a rare form of extrapulmonary tuberculosis that, left untreated, can cause serious joint and tendon damage. We report the case of a 65-year-old male patient who presented with an insidious flexor weakness of the fifth finger but without any history of trauma. Magnetic resonance imaging revealed a partial tear of the fifth finger flexor tendon with a fluid co...

Introduction Accessory flexor muscles in the forearm were first reported by Gantzer in 1813 [1]. These small accessory muscles typically arise from the medial arm and forearm [2] and the deep surface of the flexor digitorum superficialis [3]. Gantzer muscles insert via thin tendons into the tendon of the flexor pollicis longus, digitorum superficialis, or flexor digitorum profundus [2–4]. Here,...

The anterior interosseous nerve syndrome involves paralysis of the flexor pollicis longus, flexor digitorum profundus of the index and long fingers, and the pronator quadratus. We have encountered 33 cases of an incomplete syndrome in which only the flexor pollicis longus or the flexor digitorum profundus of the index finger is either paretic or paralyzed. This entity must be distinguished from...

The long-term results of the key grip procedure (tenodesis of the flexor pollicis longus tendon to the radius, release of the A1 pulley, and percutaneous pin fixation of the interphalangeal joint of the thumb) were evaluated in 10 tetraplegic patients. Seven patients also had tenodesis of the extensor pollicis longus and brevis tendons to prevent flexion at the metacarpophalangeal (MP) joint. P...

TENOSYNOVITIS of the deep digital flexor tendon (thoroughpin) in horses is manifested by distention of its tarsal synovial sheath due to formation of an excessive synovial effusion. Unless tenosynovitis is acute, signs of inflammation, pain or lameness are absent (1). Tendinitis can and does occur in conjunction with inflammation of the tarsal synovial sheath. As tendons function they are frequ...

Snapping finger is frequently encountered in orthopeidic diagnosis a:r:d treatment, and frequently experienced as cases of minor surgical operation of the hand. Cases of snapping finger generally are broadly classified into infantile cases and adult cases by their operative findings. The former is caused by formation of tumor by the flexor pollicis longus tendon itself at the entrance of the te...

BACKGROUND Primary flexor tendon repair was first introduced in the 1960s. Since then, major advances in the understanding of flexor tendon anatomy and biology have led to improved outcomes following repair. Relative to the adult population, sparse knowledge exists as to which operative and postoperative treatments are most successful in children. This is due, in part, to the rarity of pediatri...

Healing canine flexor tendons treated with either total immobilization, delayed protected mobilization, or early protected mobilization was studied by biomechanical, microangiographic, biochemical, and histologic techniques at intervals through 12 weeks. The healing characteristics of the early mobilization tendons showed higher tensile strengths and improved gliding function than the delayed m...

BACKGROUND The main goals of flexor tendon surgery are to restore digital motion by providing tendon healing and to preserve tendon gliding. Our purpose was to investigate the effects of 5-fluorouracil (5-FU) on tendon adhesions in partially divided profundus flexor tendons (flexor digitorum profundus [FDPs]) following surgical repair and in partially divided FDPs without surgical repair, and t...