-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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However, the prevalence of sesamoid bones and their distribution in digits of the hand in Turkish population has not been reported yet. It can be concluded that two sesamoid bones radial and ulnar palmar to the MCP joint of the thumb is found in all individuals regardless of ethnic origin, despite extremely rare exceptions.

Excluding some exceptional circumstances such as congenital agenesis, certain sesamoid bones are invariably present in all individuals like patella.

We not observed such bones in the radiographs of the hands of children and young Brazilians. Although, Fawcett discussed about the sexual differences, there are only three previous studies which statistically examined the correlation between the gender and laterality with presence or absence of sesamoid bones in the hands Amar et al. Similarly, in our study, we could find any correlation between the laterality and sesamoid bones of the hand in any localization.

Furthermore, they modify the pressure, diminish the friction and, occasionally alter the direction of muscle pull Amar et al. In the little finger one sesamoid bone was seen palmar to the MCP joint in hands showing an incidence of The most common arrangement of sesamoid bones in Turkish subjects. Similarly, the sesamoid bone of the index and little MCP joint similarly show great variation among different ethnic groups.

The prevalence of sesamoid bones in Turkish population is considerably different from the Africans and Europeans, but rather resembles Mediterranean and Arab populations. Sesamoid bones palmar to the MCP joints of the middle finger and ring finger were rare; the incidence for these locations being 1.

Several radiographic studies have documented the prevalence and distribution of sesamoid huesox of the hand in different ethnic groups Table IV. The distribution of sesamoid bones and their prevalence in the hand. A total of hand radiographs from men and women with a mean age of In one patient, the sesamoid bone of the 2nd MCP joint and in another patient the sesamoid bone of the 5th MCP joint hueoss double in configuration Fig. The differences between the sesamoid bones at a particular location and the side and sex were analyzed using Pearson Chi-Square Test.


Among previous studies, only Joseph examined the arrangement of sesamoid bones in each individual hand Joseph.

In the group of Brazilian individuals, we observed that all hands had sesamoid bones at the level of MPJ sesamoideod the thumb; On Sesamoid and Supernumerary Bones of the Limbs. One sesamoid bone was seen palmar to the interphalangeal IP joint of the thumb in hands giving an incidence of However, some sesamoid bones are subject to variations such as sesamoid bones of the hand.

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. The sesamoid bones of the hand and the time of fusion of the epiphysis of the thumb.

Fractura en Hueso Sesamoideo | Valley Regional Medical Center

This percentage is considerably high compared to the previously published sesamoides. 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.

Services on Demand Journal. Anatomy ; Hand ; Sesamoid bones. Furthermore, two independent observers reviewed all cases to decrease the errors. On the other hand, Amar et al. Radiographic appearance of sesamoid bones in the hands and feet of Malawian subjects. Sesamoid bones are small round or oval shaped nodules that are imbedded within certain tendons. Sesamoid Bones in the Human Hand. Chronic sesamoiditis of the thumb: In the hand the sesamoid bones are found on the palmar surface of the several joints.

Continuous variables were stated as mean and standard deviation and categorical variables as percentage and frequency distribution. Thus, he classified the hands according to the presence or absence of sesamoid bones in 2nd and 5th digits.


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. This is largest series of hand radiographs examined in the current sesaoideos in adults. Superimposition of the radial sesamoid bone with the first metacarpal head.

Sesamoid bones have some functions. They are called sesamoid bones, huesox 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. Furthermore, Goldberg et al.

Lesiones En Un Hueso Sesamoideo Del Pie

Data on patient age, gender, and hand laterality right vs. We analyzed 34 radiographs of adult hands, Chileans, of both sexes, and 19 radiographs belonging to the hands of children and adolescents. The most common arrangement of sesamoid bones was absence of all sesamoids bones in all locations except 1st MCP joint Fig.

This may be an explanation for this different percentage. Therefore, these variable sesamoid bones are generally considered normal anatomic variations, and are often recognized as an incidental radiograph finding in clinical practice Amar et al.

Incidence and ossification of sesamoid bones in the hands and feet: The Sesamoid Bones of the Hand: The presence of sesamoid bones in various digits and their distribution was recorded by two orthopedic surgeons independently at separate times and any discrepancy was subsequently resolved by consensus. The overall prevalence wesamoideos sesamoid bones palmar to the MCP joint of the thumb ranged between At the level of the MPJ of the little finger, one sesamoid bone was observed in

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