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Results for “SESAMOID BONES”

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PubMed2006

[Ulnar sesamoid bone of the small finger causing painful trigger finger].

We report on a 38-year-old woman suffering from painful trigger finger. Contrary to the expected intraoperative finding of a simple stenosing pulley and ganglion cyst on a thickened flexor tendon sheath, we found fibrotic cords between an abnormal ulnar sesamoid bone at the fifth finger and the A1-pulley to be responsible for distortion of the tendon sheath and a consecutive "klicking"-phenomenon. A coherence between sesamoid bones and trigger finger has repeatedly been found on the thumb but there is no such description regarding the long fingers.

Adult↗
PubMed1991

Clinical relevance of radiographic findings in proximal sesamoid bones of two-year-old standardbreds in their first year of race training.

Radiographs of all 4 fetlocks of 71 Standardbred racehorses were obtained at 3-month intervals for 1 year. Radiographic findings in the abaxial surface of the proximal sesamoid bones were classified into 3 types according to the severity of lesions, and correlation was made with clinical findings at time of examination. Type-1 lesions (1 or 2 linear defects less than or equal to 1 mm wide) were detected in 55% of horses at the start of training; clinical signs of disease were not manifested, and lesions did not become clinically relevant. Type-2 lesions (3 or more linear defects less than or equal to 1 mm wide) were detected in horses not manifesting clinical signs of disease, and were more frequently observed after 3 months of training. However, 66% of horses affected with diseases of the suspensory apparatus, including superficial flexor tendinitis and suspensory desmitis, also manifested this type of lesion. When lameness was observed, it was associated with the soft tissue problem, and the sesamoid bone changes were considered secondary. Type-3 lesions (wide, abnormally shaped linear defects) were detected in 7 horses at the start of the study; lesions remained in horses throughout the study and were consistently associated with lameness during training. Type-3 lesions were considered clinically relevant and indicative of primary sesamoiditis.

Animals↗
PubMed1996

Functional anatomy of the radial sesamoid bone in the giant panda (Ailuropoda melanoleuca).

The function of the radial sesamoid bone (RS) in the giant panda (Ailuropoda melanoleuca) was examined by macroscopic study of RS-related bones and muscles. The RS was observed to be connected to the scapholunar and the 1st metacarpal bones. A joint cavity was present between the proximal surface of the RS and the distal area of the scapholunar bone but the RS possessed a fibrous joint connecting it to the proximal radial surface of the 1st metacarpal bone. It is suggested that the RS possesses no substantial abductor-adductor function as the articulation between the RS and the 1st metacarpal bone (FM) seems not to permit flexible movement of the RS. The RS may be a supporting process opposite the digits in the palm when the animal flexes its 5 digits to grip objects, but it is not an active grasping apparatus. In the muscular system, abductor pollicis longus provided strong tendons to the RS as an RS-abductor, whereas the abductor pollicis brevis, opponens pollicis and aponeurosis palmaris were well developed as an RS-adductor muscle group. Observation of RS articulations, however, showed that the muscles do not provide appreciable abduction-adduction actions for the RS.

Animals↗
PubMed2002

Percutaneous screw fixation for fractures of the sesamoid bones of the hallux.

Over a period of one year we treated nine fractures ofhe sesamoid bones of the hallux, five of which were in the medial sesamoid. All patients had symptoms on exercise, but only one had a recent history of injury. The mean age of the patients was 27 years (17 to 45) and there were six men. The mean duration of symptoms was nine months (1.5 to 48). The diagnosis was based on clinical and radiological investigations. We describe a new surgical technique for percutaneous screw fixation for these fractures using a Barouk screw. All the patients were assessed before and after surgery using the American Orthopaedic Foot and Ankle Society Hallux Score (AOFAS). There was a statistically significant improvement in the mean score from 46.9 to 80.7 (p = 0.0003) after fixation of the fracture with a rapid resolution of symptoms. All patients returned to their previous level of activity by three months. We believe that this relatively simple technique is an excellent method of treatment in appropriately selected patients.

Adolescent↗
PubMed1997

Septic tenosynovitis and focal osteomyelitis of the lateral proximal sesamoid bone in a thoroughbred gelding.

Chronic septic tenosynovitis with concurrent, associated focal osteomyelitis of the lateral proximal sesamoid bone was diagnosed in a seven-year-old thoroughbred gelding. Surgical management of this case consisted of open annular ligament desmotomy and curettage of the affected sesamoid. Following lavage of the digital sheath the incisional wound was closed but a 2 cm gap was left distally to allow for postoperative open drainage. The distal limb was bandaged and the horse treated with antibiotics and non-steroidal anti-inflammatories. Sepsis resolved and the horse made a gradual return to full work.

Animals↗
PubMed1990

[Aseptic osteonecrosis of the internal sesamoid bone of the large toe, apropos of 3 case reports in adults].

Idiopathic aseptic necrosis of the sesamoid bone of the big toe in teenagers and young adults has been described by Renander (1952). We reported three incidents of this condition in adults. The first case was secondary to trauma, whereas repeated trauma could have been responsible for the second. The third case was associated with gout and a multifocal osteo-necrosis. We favor the opinion that idiopathic aseptic necrosis of the sesamoid one of the big toe in adults is seldom a primary condition and that other predisposing factors should be taken into consideration.

Aged↗
PubMed1989

Bovine sesamoid bones: a culture system for anatomically intact articular cartilage.

Medial sesamoid bones from the metacarpophalangeal joints of calves were used for prolonged culture of anatomically intact articular cartilage on its natural bone support. The cartilage remained viable during culture, without signs of degeneration. After 1 wk of culture the cartilage showed an increased proteoglycan synthesis, and some minor changes in the composition of newly synthesized proteoglycans were observed. In the next 7 wk all studied parameters remained constant, except for the rate of proteoglycan synthesis, which declined between 4 and 8 wk to values just below those measured at the start of culture. Despite the fact that newly synthesized proteoglycans showed some altered biochemical properties, the composition of the total pool of proteoglycans did not change during 8 wk of culture. The significance of this phenomenon is discussed. This new in vitro model of intact articular cartilage offers a promising alternative to in vivo studies because in contrast to other in vitro models no surgical injury of the cartilage is introduced.

Animals↗
PubMed1978

Fracture of the navicular sesamoid bone: a case report.

The case history of a 45-year-old female patient who sustained a fracture of the right navicular sesamoid bone, probably due to sudden stretching of the tibialis posterior muscle, is described, and the literature briefly reviewed.

Female↗
PubMed1998

Giant-cell lesion in a sesamoid bone of the thumb.

We treated a 72-year-old woman by excision of the right thumb sesamoid which contained a giant-cell lesion. Nine years later she had normal function and no evidence of other lesions, recurrence or metastasis. We recommend that the diagnosis of giant-cell reparative granuloma and giant-cell tumour be considered when a bony mass in a sesamoid bone is discovered. Surgical excision at least in our one case was definitive treatment.

Aged↗
PubMedDate not supplied

Circumferential wiring of mid-body and large basilar fractures of the proximal sesamoid bone in 15 horses.

Circumferential wiring was used to repair 12 mid-body fractures and four large basilar fractures of proximal sesamoid bones in 15 horses. Eighteen-gauge stainless steel wire was placed around both fragments in five horses, and through the proximal fragment and around the distal fragment in 10 horses. The horses were returned to work when they were clinically sound and fracture healing was evident radiographically. Eleven horses resumed athletic performance, three horses were used as breeding animals, and one horse was retired. Five horses performed at an athletic level equal to or better than their previous levels, and six horses performed at a lower level.

Animals↗