Gerd M. Ivanic

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The BRAIN TEST, a computerized alternating finger tapping test, was performed on 154 patients with parkinsonism to assess whether the test could be used as an objective tool to evaluate reliably the severity of Parkinson's disease (PD). Patients were instructed to tap two marked computer keyboard keys as fast and as accurately as possible for 60 seconds.(More)
OBJECTIVES To assess the evidence for the existence and prevalence of sleep attacks in patients taking dopamine agonists for Parkinson's disease, the type of drugs implicated, and strategies for prevention and treatment. DESIGN Review of publications between July 1999 and May 2001 in which sleep attacks or narcoleptic-like attacks were discussed in(More)
Because malunion (usually with dorsal elevation of the first metatarsal) has been reported after the treatment of severe hallux valgus deformities by proximal osteotomies, the current study was designed to compare the sagittal stability of six different metatarsal shaft osteotomies: the proximal crescentic, proximal chevron, Mau, Scarf, Ludloff, and(More)
The vascular anatomy in the acetabular region involves a certain risk of arterial and venous injuries complicating orthopaedic surgery. These complications have been grouped into four categories: lacerations, thrombosis, pseudoaneurysms and arteriovenous fistula. In a period of 5 years, three injuries of the external iliac artery and four lesions of the(More)
The post-discectomy syndrome (PDS) is a common diagnosis in patients with problems following a disc operation. The different causes of PDS make the establishment of the correct diagnosis and its corresponding efficient treatment difficult. A general overview published in the bibliographical data covering the entity of PDS is rare. The following paper aims(More)
STUDY DESIGN A retrospective study involving 113 patients with a spondylolysis who underwent direct repair with a hook screw was conducted. OBJECTIVES Spondylolysis with instability can produce low back pain. In adults, fusion of the affected level is the gold standard of treatment. In the adolescent, direct repair of the lysis can save a functional(More)
AIM The present retrospective study investigates the mid-term results after medial displacement calcaneal osteotomy combined with flexor digitorum longus transfer for the treatment of acquired flatfoot deformity due to posterior tibial tendon insufficiency at stage II (Johnson and Strom Classification). METHOD 30 feet in 29 patients (6 male, 23 female)(More)
Korrektur des erworbenen Plattfußes mit Wiederherstellung einer möglichst normalen Form und schmerzfreien Funktion des Fußes. Erworbener Plattfuß, bedingt durch Sehneninsuffizienz des Musculus tibialis posterior im Stadium II bei passiv korrigierbarer Abduktion des Vorfußes und Valgusstellung des Rückfußes sowie schmerzhaften Funktionsstörungen des Musculus(More)
Technical aids in the treatment of foot problems have been known for hundreds of years. In the German-speaking countries, especially, shoemakers, prosthetists, and orthotists are well respected. They have great skills and provide the orthopedic surgeon with alternatives to surgery. Also, the combination of surgery and technical aids is important because(More)
A randomized clinical trial compared two materials used to prevent epidural scarring after microdiscectomy. To determine whether ADCON®-L Gel (ALG) or Preclude Spinal Membrane® (PSM) was more effective in preventing scarring, reducing pain, and improving quality of life postoperatively. Postdiscectomy syndrome may result from epidural scarring. Various(More)