BACKGROUND Besides early diagnosis, an anatomical and stable reduction is paramount for obtaining a favorable outcome. The current study looked at the influence that the type of approach for tarsometatarsal injuries has on the accuracy of the reduction and the effect that the type of fixation has on stability. METHODS Consecutive patients treated surgically for an acute Lisfranc injury were i...

I want to thank my supervisor, Martin Grohe, for his patience, many illuminative discussions and for encouraging me to develop questions of my own. I would like to thank Dzifa Ametowobla for supporting me throughout this work especially by reading several parts of it and helping me greatly with the design. Furthermore, I am indebted to Bettina Hepp and Kay Thurley for helpful comments on earlie...

PURPOSE To review the infection rate in 43 patients who underwent percutaneous Kirschner wire fixation for distal radius fractures. METHODS Records of 13 men and 30 women aged 25 to 86 (mean, 49) years who underwent closed reduction and percutaneous Kirschner wire fixation for unstable distal radius fractures were reviewed. Each fracture was fixed with 2 to 3 wires of 1.6-mm diameter. Kirschn...

In this study, the authors assess the strength of proximal humerus fracture fixation using different methods. The strength, while pulling out the chosen single Kirschner wires implanted in porcine bone, has been examined. Tests concerning the strength of fixation with different types of implants have been carried out on prepared models. We observed the maximum strength of the bone-single wire c...

We report a case of intrathoracic migration of a Kirschner wire used for inveterate anterior right shoulder luxation penetrating the spinal canal through the right Th8 nerve root foramen. The migration was asymptomatic. The treatment involved removing the pin via posterolateral thoracotomy. The postoperative course was uneventful. Intrathoracic migration of Kirschner wires should be expected in...

Orthopedic wires and pins are regularly used for the treatment of dislocations and bone fractures. Migration of these metallic fixation devices into the spinal canal is an uncommon complication. We present a 35-year-old man who underwent thoracic spinal canal migration of a Kirschner wire. The patient had undergone treatment of acromioclavicular joint dislocation with Kirschner wire fixation. T...

One of the most active and most systematic researchers of the Prague group of computational linguistics, Dr. Zdeněk Kirschner, born January 15, 1924, died on the Christmas Eve 2008, three weeks before his 85th birthday. Zdeněk joined our research group in the spring of 1970, after his return from a longer stay in Tanzania, where he, among other things, was engaged in the education and cultural ...

Later on in [2], Grekos refined the previous results, in some cases, by introducing the infimum of the radii of curvature r(Γ ) of the curve. He succeeded in showing an upper bound of the shape N(Γ ) l(Γ )r(Γ )−1/3 and conversely constructed a family of curves Γ0 with N(Γ0) l(Γ0)r(Γ0)−1/3. Naturally, Grekos’ results suppose that the curve has at least C2-regularity. In fact, this is the maximal...

PURPOSE To assess treatment outcomes of young patients with medial epicondylar fracture of the elbow using standard operative protocols. METHODS 24 consecutive patients with medial humeral epicondylar fracture underwent surgery by one of the 3 methods: (1) 2 parallel Kirschner wires, (2) 2 parallel Kirschner wires plus a tension-band wire, and (3) a screw plus an anti-rotation Kirschner wire....

We answer a question of Golumbic, Monma and Trotter by constructing proper tolerance graphs that are not unit tolerance graphs. An infinite family of graphs that are minimal in this respect is specified.