INTRODUCTION Dislocation of the metacarpophalangeal joint (MCPJ) of the thumb is rare in children and delayed presentation of this injury is even more uncommon in the literature. We report two cases, both children, who presented to fracture clinic with a dislocated thumb over one week after initial injury. In each case closed reduction was attempted but failed, and open reduction was necessary....

The aim of the present study was to analyze the hydrodynamic characteristics of a true model of a swimmer hand with the thumb in different positions using numerical simulation techniques. A three-dimensional domain was created to simulate the fluid flow around three models of a swimmer hand, with the thumb in different positions: thumb fully abducted, partially abducted, and adducted. These thr...

A male infant is described with mandibulofacial dysostosis and absent thumbs, consistent with the Nager acrofacial dysostosis syndrome. In addition, the tetralogy of Fallot was present. Major congenital heart malformations occur rarely in this syndrome.

This chapter emphasizes the dilemma of salvage and reconstruction of the congenitally aplastic or hypoplastic thumb without normal cerebrocortical representation for prehensile grasp and pinch. The philosophy of reconstruction of the congenitally anomalous thumb is clearly divergent from thumb reconstruction following trauma. It is difficult to advise parents who seek surgical correction of the...

Splinting for the common osteoarthritis of the carpometacarpal (CMC) joint of the thumb is infrequently described in the literature, but the few splints that are described include one or both adjacent joints. This paper describes the design and biomechanics of a custom-molded thumb CMC immobilization splint that excludes the thumb metacarpophalangeal and wrist joints. The problem of the imbalan...

OBJECTIVE Thumb problems are common in some health professionals such as physical therapists. The purpose of this case-control study is to investigate the influence of clinical experience and different mobilization techniques on the kinematics of the thumb. METHODS Twenty-three participants without exposure to manual techniques (the Novice Group) and fifteen physical therapists with at least ...

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...

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...