Bony anatomy of the third metacarpal and relationship with the capitate: a computed tomography study.

Purpose: The purpose of this study was to accurately establish the anatomical variability of the third metacarpal, its medullary canal, and the relationship with the capitate in the context of high rates of component loosening still seen in total wrist arthroplasty.

Methods: CT scans of a 100 hands (age: 41 ± 14 years (range: 16-71 years); male/female ratio: 53/47) were studied to establish the detailed anatomy of the third metacarpal and the capitate.

Results: Although the shape of the third metacarpal and the angles formed with the capitate were highly variable, the third metacarpal length was longer in males (p < 0.

The Effectiveness of a Flexible Locked Intramedullary Nail and an Anatomically Contoured Locked Plate to Treat Clavicular Shaft Fractures: A 1-Year Randomized Control Trial.

Background: Displaced and shortened clavicular shaft fractures can be treated operatively with intramedullary or extramedullary fixation. The aim of the present study was to compare the union rates and functional outcomes of displaced and/or shortened clavicular shaft fractures treated with a flexible locked intramedullary nail or with an anatomically contoured locked plate.

Methods: Seventy-two patients with acute displaced and/or shortened clavicular shaft fractures underwent randomly assigned management with either an intramedullary locked nail or an anatomically contoured locked plate.

The treatment of clavicular shaft fractures with an innovative locked intramedullary device.

Background: Displaced and shortened clavicular shaft fractures can be treated by intramedullary fixation; however, hardware migration and soft tissue irritation at the insertion site have complicated its use. The aim of this study was to determine whether the new Sonoma CRx intramedullary device (Sonoma Orthopedic Products Inc, Santa Rosa, CA, USA) could be used successfully to treat displaced and shortened clavicular shaft fractures and restore the functional capacity of shoulder without the development of secondary complications.

Methods: Displaced and shortened clavicular shaft fractures in 47 consecutive patients were treated with the CRx device.