For navigation systems that rely on the pelvic anterior plane, cup alignment values can be converted to familiar target values with our nomogram with good accuracy and reproducibility. The next generation of navigation systems should be able to measure the pelvic tilt for each individual patient and automatically adjust alignment values.

The use of KT has a positive effect on proprioception in patients with an anterior cruciate ligament rupture. Therefore, the application may improve gait pattern as well as the subjective function of the affected knee joint.

Primary non-Hodgkin lymphoma (PHL) occurs very rarely in bone. We report a case of a 63-year-old patient with PHL of the spine and an unusual postoperative complication leading to the development of a perforation of the transverse colon. After right hemicolectomy the patient recovered fully and was further treated with chemo- and radiotherapy. We emphasise the importance of an immunohistochemical analysis to exclude misdiagnosis.