its comparative rarity may be indicated by the fact that in a review of the literature for the ensuing fifty-two years (Stieve 1916) only thirty-nine cases were collected. Lapidus, Guidotti and Coletti (1943) discovered six cases while examining 75,000 men drafted to an American Army centre. These workers quoted a statement by Dr M. Pomeranz. radiologist of the Hospital for Joint Diseases in Ne...

PURPOSE Interphalangeal joint stabilization often is performed concomitantly with tendon transfers that restore key pinch (lateral pinch) to the paralyzed thumb. The goal of this study was to measure the effect of interphalangeal joint stabilization via percutaneous pin fixation on the thumb-tip force produced by the flexor pollicis longus (FPL). METHODS We applied 10 N of force to the tendon...

This article reports a systematic research effort aimed at establishing a normative database of thumb circumduction range of motion (ROM) and related kinematic characteristics in vivo while examining the effects of anthropometry, gender, and direction of rotation. Twenty-eight (14 men, 14 women) anthropometrically diverse participants performed maximum voluntary thumb circumductions as the traj...

The condition of chronic instability of the MP (metacarpophalangeal) joint of the thumb, may be the resultant of chronic strain of the ulnar collateral ligament of the MP joint. This condition was described in Scottish gamekeepers who used to kill hunted animals by a special manoeuvre subjecting the thumb to extension abduction force, and was termed "Gamekeeper's Thumb" (Campbell, 1955). Nowada...

Background: The function of the thumb is critical to overall hand function. Uniquely endowed with anatomic features that allow circumduction and opposition, the thumb enables activities of pinch, grasp, and fine manipulation that are essential in daily life. Destruction of the thumb secondary to trauma represents a much more significant loss than would result from loss of any other digit. There...

Introduction: Trigger Thumb is a condition that caused by thickened A-1 pulley, often secondary to stenosed tendon sheath. There are several treatment options for trigger thumb, yet the use of prolotherapy treat has not been widely discussed in literature. Therefore, this study aims present case Bilateral Thumbs which were treated using Prolotherapy.
 Case: A 49-year-old female patient was...

Congenital duplication of the thumb is usually reconstructed by 18 months of age. This paper reports satisfactory outcome following reconstruction of two Wassel Type IV duplicate thumbs in adults aged over 40. Both achieved a good outcome based on Tada's criteria and a subjective Visual analogue score 8.

BACKGROUND Injury to the ulnar collateral ligament (UCL) of the first metacarpophalangeal joint (MCPJ) is a common injury, especially in skiers. It is often misdiagnosed, which can lead to chronic instability. OBJECTIVE This article reviews the current literature on UCL injury of the thumb and describes the clinical assessment and management. DISCUSSION The UCL of the thumb is often injured...