Geert I. Pagenstert

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BACKGROUND Osteochondral lesions are frequently seen in athletes after ankle injuries. At this time, osteochondral autologous transplantation (OATS, mosaicplasty) is the only surgical treatment that replaces the entire osteochondral unit in symptomatic lesions. PURPOSE To evaluate the clinical and radiological midterm to long-term outcome of ankles(More)
The precise localisation of osteoarthritic changes is crucial for selective surgical treatment. Single photon-emission CT-CT (SPECT-CT) combines both morphological and biological information. We hypothesised that SPECT-CT increased the intra- and interobserver reliability to localise increased uptake compared with traditional evaluation of CT and bone(More)
The combined single-photon emission computed tomography and conventional computed tomography (SPECT/CT) technique has increased the sensitivity and specificity of bone scans. We examined the value of using SPECT/CT for the assessment of coronal plane hindfoot deformities. Twenty-seven patients with varus (11 patients) or valgus (16 patients) malalignment of(More)
Patients with varus or valgus hindfoot deformities usually present with asymmetric ankle osteoarthritis. In-vitro biomechanical studies have shown that varus or valgus hindfoot deformity may lead to altered load distribution in the tibiotalar joint which may result in medial (varus) or lateral (valgus) tibiotalar joint degeneration in the short or medium(More)
In patients with asymmetric (varus or valgus) ankle osteoarthritis, realignment surgery is an alternative treatment to fusion or total ankle replacement in selected cases. To determine whether realignment surgery in asymmetric ankle osteoarthritis relieved pain and improved function, we clinically and radiographically followed 35 consecutive patients with(More)
Chronic ankle instability represents a typical sports injury which can mostly be seen in basketball, soccer, orienteering and other high risk sports. 20 to 40 % of the acute ankle sprains develop into chronic ankle instability. From a sports orthopaedic point of view, chronic ankle instability can be subdivided into a lateral, medial or a combination of(More)
Bei der Behandlung osteochondraler Läsionen am oberen Sprunggelenk stehen sowohl arthroskopische als auch offene Therapieverfahren zur Verfügung. Die Osteotomien rund um das obere Sprunggelenk haben sich als Zugangserweiterung bei der Behandlung weiter posterior gelegener osteochondraler Läsionen fest etabliert. Bei den relativ häufig anzutreffenden(More)
Osteoarthritis (OA) is defined as the syndrome of joint pain and dysfunction caused by substantial joint degeneration. In general, OA is the most common joint disease and is one of the most frequent and symptomatic health problems for middle-aged and older people: OA disables more than 10% of people who are older than 60 years. This article reviews the(More)
BACKGROUND Total ankle replacement is a possible treatment for ankle arthritis; however, participation in sports after this procedure has not yet been analyzed. HYPOTHESES There is a significant increase of sports activity after total ankle replacement in patients with arthritis. There is a significant correlation between sports activity and American(More)
PURPOSE To compare complication rates and outcome of open lateral retinacular (LR) lengthening and open LR release in the treatment of lateral patellar hypercompression syndrome (LPHS). METHODS In a prospective double-blinded study, 28 patients (mean age, 48 years; 21 women and 7 men) received either LR release (14 patients) or LR lengthening (14(More)