The Relationship between Structure of the Wrist and Function in a Japanese and Caucasian Population.

Factors such as age and joint structure affect normal wrist motion. The midcarpal joint participates in flexion/extension, radial-ulnar/deviation (RUD), and since lunate/wrist type-2 is likely more stable than a lunate/wrist type-1, we suggest that midcarpal joint structure will affect wrist motion. Our purpose was to compare wrist motion in Caucasian and Japanese populations and to associate motion with midcarpal joint morphology.

Non-osteoporotic fractures are associated with increased risk of subsequent major osteoporotic fractures.

Unlabelled: We studied the association between non-osteoporotic fractures and future major osteoporotic fractures, using UK health records. Non-osteoporotic fractures were found to increase the risk of major osteoporotic fractures, although to a lesser extent than osteoporotic fractures. This highlights the importance of considering all previous fractures in assessing future fracture risk.

[ISOLATED FOURTH EXTENSOR COMPARTMENT TENOSYNOVITIS DUE TO EPIDEMIC RELATED CHANGES IN THE WORKPLACE].

We report on cases of isolated fourth extensor compartment tenosynovitis without evidence of systemic inflammation that occurred in the context of alteration in the work environment due to the COVID-19 epidemic. Early identification of the deleterious effects of virtual/technologically-dependent work from home can aid in treatment and prevention of these conditions. We describe the phenomenon and suggest a treatment approach.

Failure Rate and Early Complications of Thumb Carpometacarpal Joint Replacement-A Multicenter Retrospective Study of Two Modern Implant Designs.

Joint replacement arthroplasty for the treatment of thumb osteoarthritis is gaining popularity as recent studies have demonstrated better pinch and grip strength and faster rehabilitation. Our aim was to identify early complications in modern implant designs using a multicenter study. A total of 381 patients who underwent thumb carpometacarpal replacement surgery in six participating hospitals were enrolled.