BACKGROUND The aim of this study was to determine the prevalence of the different types of median nerve thenar motor branch and to compare them with literature data. MATERIAL AND METHODS This study was conducted using median nerves dissected from cadavers stored in a 10% solution of formaldehyde at the Department of Anatomy of Jagiellonian University Medical College (JUMC) and cadavers from t...

An optimal thenar palmprint classification model is proposed in this paper. Firstly, the thenar palmprint image is enhanced using a high-frequency emphasis filter and histogram equalization. Then, from the enhanced image thirteen textural features of gray level co-occurrence matrix (GLCM) are extracted as classification feature vectors. Finally, the SVM classifier is used for classification and...

OBJECTIVE To delineate H-reflex parameters and specify the diagnostic accuracy measures of thenar muscle H-reflex in Fibromyalgia (FM). METHODS The study was a cross sectional study performed on 30 subjects with FM and 30 healthy volunteers in two major referral hospitals. We recorded the number of obtainable thenar H-reflexes and their minimum latency, threshold and amplitude in each group. ...

Thenar pain can represent a significant morbidity for a baseball player who relies on manual dexterity for gripping a bat and precise and accurate throws. While osseous, ligamentous, and neurovascular pathologies are commonly considered, musculotendinous injuries are often neglected in the differential diagnosis of thenar pain. We present a case of adductor pollicis longus strain as a cause of ...

Introduction: Bag-valve-mask (BVM) ventilation is the first and important part of the airway management. The aim of present study was to evaluate the quality of four different BVM ventilation techniques - E-C, Thenar Eminence, Thenar Eminence (Dominant hand)-E-C (Non dominant hand), and Thenar Eminence (Non dominant hand)-E-C (Dominant hand) - among two novice and experienced groups. Methods: I...

Muscles paralyzed by injury or disease fatigue excessively when stimulated. This study examined whether the first few paralyzed thenar motor units recruited by electrical stimulation of the median nerve were more fatigue resistant than the total thenar motor unit population. The paralyzed thenar muscles of four subjects with chronic cervical spinal cord injury were fatigued by a 2-min intermitt...

The thenar region was studied with ultrasonography in 10 healthy volunteers. All thenar muscles could be identified and their course followed entirely. In addition, their function could be assessed by scanning during unresisted or resisted active movements. Standard approach, normal appearance, and dynamic tests for each muscle are described.

Cavanagh syndrome is a rare, isolated congenital thenar hypoplasia with characteristic clinical, radiological and electrophysiological features. It has never been reported to occur in association with absent radial artery. We report the case of a boy with left sided congenital thenar hypoplasia fulfilling the characteristic clinical, radiological and electrophysiological features of Cavanagh sy...

Purpose We investigate the thenar and plantar sesamoids as markers of skeletal maturity, and grade appearance using two scales, a binary system (absent or present), and an analogue system that relies upon judging regular changes in morphological appearance. Methods We studied 94 healthy children (49 female and 45 male patients) between ages three and 18 years who had approximately 700 seriall...

A skillfully applied thenar flap is an excellent method of restoring major distal soft tissue losses of fingers. It not only provides full-thickness skin of near perfect tissue match but also is the only local flap with sufficient subcutaneous tissues to restore adequately the lost finger pulp. Its recovery of sensibility yields good function, it does not hyperpigment, and the donor site is on ...