Background The increasing use of fluoroscopy-based surgical procedures and the associated
exposure to radiation raise questions regarding potential risks for patients and operating …

Seventy-three children (48 boys and 25 girls; mean age, 5.7 years) with unilateral femoral or
tibial shaft fractures were treated using elastic intramedullary nails at the authors' institution. …

Background Computer-assisted surgery (CAS) can act as an intraoperative ruler in high tibial
osteotomy (HTO) to visualize continuously the leg during surgery. Questions The aim of the …

The indications for physiotherapy after supracondylar humeral fractures in children are not
clear in the literature, even in the presence of an active or passive limitation of elbow joint …

… This technique was introduced by Peter Keppler and co-workers in Ulm 26,27 and, because
of its high accuracy (length ±2 mm; Torsion ±5 degrees), reproducibility, and lack of radiation…

High tibial osteotomy is a widely accepted treatment of medial compartment osteoarthritis as
well as other lower extremity deformities. However, it is a technically demanding procedure. …

… In 1995, we began to use a navigated ultrasound system introduced by Peter Keppler and
colleagues 23 . In view of its high accuracy, high reproducibility, and high correlation with …

Objective: The objectives of this study are to design and evaluate a CT-free intra-operative
planning and navigation system for high tibial opening wedge osteotomy. This is a widely …

Several techniques for knee fusion have been described with success rates ranging from 29%
to 100%, with worse results occurring in patients with joint sepsis. We treated 21 patients …

Navigation systems track objects with precision expressed as root mean square equalling
even up to 0.15 mm. Application of navigation system combined with imaging technique …