The learning curve of imageless robot-assisted total knee arthroplasty with standardised laxity testing requires the completion of nine cases, but does not reach time neutrality compared to conventional surgery.

Purpose: The assistance of robot technology is introduced into the operating theatre to improve the precision of a total knee arthroplasty. However, as with all new technology, new technology requires a learning curve to reach adequate proficiency. The primary aim of this study was to identify the learning curve of an imageless robotic system with standardised laxity testing.

Reduced joint awareness after total knee arthroplasty with a cruciate retaining design.

A range of different total knee arthroplasty (TKA) designs have been developed, each specifically designed to relieve pain and restore knee function with the greatest possible patient satisfaction. The purpose of this study was to compare a posterior stabilized design and a cruciate-retaining design. We hypothesized that a cruciate-retaining design would have a higher Forgotten Joint Score (FJS) than a posterior stabilized design.

Addition-Subtraction Osteotomy With Ligamentoplasty for Symptomatic Trapezial Dysplasia With Metacarpal Instability: A 10-Year Follow-Up.

Purpose: Symptomatic trapezial dysplasia with metacarpal instability in a nonarthritic joint can lead to a disabling condition characterized by decreased pain, mobility, and strength. Bony correction may be required in dysplastic joints, because soft tissue correction might be insufficient to stabilize the trapeziometacarpal (TMC) joint. We combined 2 techniques described previously, an abduction-extension osteotomy of the first metacarpal and an opening wedge osteotomy of the trapezium, including a ligament reconstruction (hemi-flexor carpi radialis).

Measurement of ulnar variance and radial inclination on X-rays of healed distal radius fractures. With the axis of the distal radius or ulna?

Ulnar variance and radial inclination are radiological parameters frequently used to evaluate displacement of distal radius fractures. In most studies measurements are based on the long central axis of the distal radius, although the axis of the distal ulna can also be used. The purpose of this study was to determine which axis is more reliable.