-Articulación de la cara palmar de la mano. -Articulación Metacarpofalángica de los dedos medio y anular. -Articulación Interfalángica del. English Translation, Synonyms, Definitions and Usage Examples of Spanish Word ‘huesos sesamoideos de la mano’. Prevalence and Distribution of Sesamoid Bones of the Hand. A Radiographic Study in Turkish Subjects. Prevalencia y Distribución de los Huesos Sesamoideos.

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The overall distribution of sesamoid bones and their percentage incidence is shown in Figure 2. On Sesamoid and Supernumerary Bones of the Limbs. Casilla D Temuco – Chile Tel.: Chronic sesamoiditis of the thumb: Bizzaro reported the highest frequency in these localizations 5. The prevalence and distribution of sesamoid bones in the hand is variable among different populations and ethnic groups.

Similarly, the sesamoid bone of the index and little MCP joint similarly show great variation among different ethnic groups. Coincident development of sesamoid bones and clues to their evolution. This is largest series of hand radiographs examined in the current literature in adults. On the other hand, we could not examine the symmetry patterns, as radiographs were of a single hand from each patient, either right or left.

In standard hand radiographs antero-posterior and oblique viewsthe radial sesamoid bone is seen as a shadow just behind the head of first metacarpal due to superimposition Fig.

The purpose of this study was to examine the plain anteroposterior radiographs of the hands in Turkish subjects in order to determine the prevalence of sesamoid bones and their distribution. The differences between the sesamoid bones at a particular location and huewos side and sex were analyzed using Pearson Chi-Square Test.

Fractura en Hueso Sesamoideo

Bizarro found two cases who lack these almost invariably present sesamoids, and in one case it appeared as a single bone on the ulnar side.

The sesamoid bones of the hand and their pathology. On the other hand, Amar et al. Casilla D Temuco – Chile Tel.: There were no significant differences between left and right hand digits.


Sesamoid bone; Hand; Prevalence; Turkish population. Two, of which the huezos is the the larger, are constant at the metacarpophalangeal joint of the thumb; one at the sesamoideps joint of the thumb; one is frequently present in the corresponding joint of the little finger, and one or two at the same joint of the index finger. The sesamoid bones of the hand and the time of fusion of the epiphysis of the thumb.

Anatomy ; Hand ; Sesamoid bones.

Therefore, these variable sesamoid bones are generally considered normal anatomic sesamoidfos, and are often recognized as an incidental radiograph finding in clinical practice Amar et al.

The data provided are evidence of differences between populations and ethnic groups. The Sesamoid Bones of the Hand: Based on this premise we conducted a study to determine its presence in different metacarpophalangeal joints MPJ of two groups of individuals. There was no statistically significant difference between the laterality and the frequency of sesamoid bones in all locations Table II.

Anatomy and pathology of the sesamoid bones. Sesamoid bones are also found occasionally at the metacarpophalangeal joints of the middle and ring fingers and at the distal interphalangeal joint of the index finger.

Traumatic conditions include acute hursos, stress fracture, and pseudoarthrosis Fig. Ozkan Kose Kultur mah. Sesamoid bones are small round or oval shaped nodules that are imbedded within certain tendons. The most common arrangement of sesamoid bones was absence of all sesamoids bones in all locations huwsos 1st MCP joint Fig.

Fractura en Hueso Sesamoideo | Valley Regional Medical Center

Excluding some exceptional circumstances such as congenital agenesis, certain sesamoid bones are invariably present in all individuals like patella. We excluded 94 hand radiographs, in which the sesamoid bones were not clearly depicted due to either incorrect patient positioning making it impossible to judge about the presence of sesamoid bones or all metacarpal and phalangeal bones of the hand were not demonstrated.

They act to protect the tendon and to increase its mechanical effect by holding the tendon further away from the center of the joint thus increasing its lever arm. It can be heusos that two sesamoid bones radial and juesos palmar to the MCP joint of the thumb is found in all individuals regardless of ethnic origin, despite extremely rare exceptions. The prevalence of sesamoid bones in Turkish population is considerably different from the Africans and Europeans, but rather resembles Mediterranean and Arab populations.


The prevalence of sesamoid bone of the index and little MCP joint were Data on patient age, gender, and hand laterality right vs.

The overall prevalence of sesamoid bones palmar to the MCP joint of the thumb ranged between Sesamoid bones are typically found in locations where a tendon passes over a joint, such as the hand, wrist, knee, and foot. Superimposition of the radial sesamoid bone with the first metacarpal head. A total of hand radiographs from men and women with a mean age of Continuous variables were stated as mean and standard deviation and categorical variables as percentage and frequency distribution.

Present study has some strengths and limitations. All the radiographs were digital, thus observers could subjectively adjust the display parameters such as contrast, opacity and brightness on the computer screen. Sesamoid Bones in the Human Hand. The present study represents the first report on the prevalence and distribution of sesamoid bones in the hand in Turkish subjects.

In our study we have identified 9 different arrangements of sesamoid bones as shown in Table III. All sesamoideis were of a single hand from each patient, either right or left.

Furthermore, they modify the pressure, diminish the friction and, occasionally alter the direction of muscle pull Amar desamoideos al. How to cite this article. They are called sesamoid bones, because they are similar in size and shape to the flat oval seed of Sesamum Indicum, an ancient East Indian plant used for purging by the Greeks Amar et al.