Suture button suspension following trapeziectomy in a cadaver model.

Background: The safety and the effects of different trajectories on thumb motion of suture-button suspensionplasty post-trapeziectomy are not known.

Methods: In a cadaveric model, thumb range of motion, trapeziectomy space height, and distance between the device and nerve to the first dorsal interosseous muscle (first DI) were measured for proximal and distal trajectory groups. Proximal trajectory was defined as a suture button angle directed from the thumb metacarpal to the second metacarpal at a trajectory less than 60° from the horizontal; distal trajectory was defined as a suture button angle directed from the thumb metacarpal to the second metacarpal at a trajectory of greater than 60° from the horizontal (Fig.

Functional assessment of the acute local and distal transplantation of human neural stem cells after spinal cord injury.

Background Context: Spinal cord injury can lead to severe functional impairments secondary to axonal damage, neuronal loss, and demyelination. The injured spinal cord has limited regrowth of damaged axons. Treatment remains controversial, given inconsistent functional improvement.

Suture button suspensionplasty after arthroscopic hemitrapeziectomy for treatment of thumb carpometacarpal arthritis.

A myriad of techniques for reconstruction of the arthritic thumb carpometacarpal joint have been described. In the modern era, there has been a push, driven by both clinicians and patients, for more rapid rehabilitation after these procedures. A majority of the historically described techniques require pinning of the thumb ray for 4 weeks.

Lipids, lipoproteins, and exercise.

Purpose: Dose-response relationships between exercise training volume and blood lipid changes suggest that exercise can favorably alter blood lipids at low training volumes, although the effects may not be observable until certain exercise thresholds are met.

Methods And Results: Plasma triglyceride reductions are often observed after exercise training regimens requiring energy expenditures similar to those characterized to increase high-density lipoprotein cholesterol (HDL-C). Thresholds established from cross-sectional and longitudinal exercise training studies indicate that 15 to 20 miles/week of brisk walking or jogging, which elicit between 1,200 to 2,200 kcals of energy expenditure per week, is associated with triglyceride reductions of 5 to 38 mg/dL and HDL-C increases of 2 to 8 mg/dL.