SPECT scan is a reliable tool for selection of patients undergoing unicompartmental knee arthroplasty.

Purpose: Was to determine the relationship between pre-operative SPECT and intra-operative assessments of tibio-femoral chondral changes.

Methods: One hundred cases had been selected on the following criteria: (1) marked Tc-99 m uptake on the medial compartment and (2) its normal uptake laterally. The cartilage macroscopic condition of tibio-femoral compartments were then recorded during the surgery.

[Precise, computed-assisted leg angle correction with open-wedge high tibial osteotomy].

Aim: This prospective study investigates open-wedge high tibial osteotomy performed with the aid of a kinematic computer-guided navigation system. After the X-ray control the osteotomy was stabilized by internal LCP fixation. The aim of the study was to demonstrate the accuracy of the navigation system and to prove the reliability of the LCP fixation.