Hermann Krimmer

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Die Einteilung der Kahnbeinfrakturen nach Stabilitätskriterien liefert die Basis für ein differenziertes Therapiekonzept. Wegen der besonderen Form des Kahnbeins ist eine sichere Unterscheidung zwischen stabiler und instabiler Fraktur anhand der Röntgenbilder häufig nicht immer möglich, so dass ergänzend ein CT parallel zur Längsachse des Kahnbeins(More)
Herbert's classification of scaphoid fractures provides the underlying rationale for treatment according to the fracture type. A CT bone scan in the long axis of the scaphoid is the best means of differentiating between stable and unstable fractures. This is difficult from conventional X-rays due to the particular three-dimensional anatomy of the scaphoid.(More)
We have established a simple method of measuring joint motion under physiological conditions. For this purpose we use an ultrasound measuring system employing marker points consisting of miniaturized ultrasound transmitters. This device was tested on a simple biomechanical model, the linkage of the proximal and distal interphalangeal joints. The angles of(More)
Total wrist fusion still represents the main treatment for severe posttraumatic disorders of the wrist due to longstanding scaphoid nonunion (SNAC-wrist) or scapholunate dissociation (SLAC-wrist). During the last decade, midcarpal fusion has become more and more popular as it preserves motion. The question, however, remained if the preserved motion is of(More)
Internal fixation of distal radius fractures often shows the problem of secondary dislocation due to dorsal comminution and osteoporosis. Although dorsal plating systems provide good stabilization, the intraoperative control of reduction is difficult in the comminuted area with high incidence for the need of cancellous bone graft. Occurrence of extensor(More)
OBJECTIVE Prosthetic joint replacement to reduce pain and maintain function of the proximal interphalangeal joint. INDICATIONS Symptomatic arthritis of the proximal interphalangeal joint with preservation of the collateral ligaments, sufficient bone support, and intact or at least reconstructable extensor tendons. CONTRAINDICATIONS Lack of stability, e.(More)
Das vergangene Jahrzehnt hat entscheidende Erkenntnisse über die Biomechanik und Funktion des Handgelenkes erbracht und das Verständnis für die Entstehung posttraumatischer Folgeschäden erweitert. War die Bedeutung der knöchernen Stabilisierung von Frakturen und Pseudarthrosen des Kahnbeins hinreichend bekannt, wird jetzt auch den Bandverletzungen der(More)
PURPOSE The purpose of this prospective study is to assess the diagnostic value of intravenously applied contrast agent for diagnosing osteonecrosis of the proximal fragment in scaphoid nonunion, and to compare the imaging results with intraoperative findings. MATERIALS AND METHODS In 88 patients (7 women, 81 men) suffering from symptomatic scaphoid(More)
OBJECTIVE In literature the diagnostic value of MRI for detecting lesions of the carpal ligaments and the TFCC is judged controversially. The aim of the following study is to determine the diagnostic accuracy of direct MR arthrography for depicting and staging of intraarticular lesions of the wrist. MATERIAL AND METHODS One day before undergoing(More)
Microsurgical tissue transplantation has provided a great advance in reconstructive surgery, especially regarding upper limb defects. Compared to conventional pedicled flaps, mobilisation can occur earlier, hospital stay is shorter and no additional interventions for pedicle detachment and flap inset are needed. The lateral arm flap is an exceptionally(More)