PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “SESAMOID BONES”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 667 records · Page 37Linked to original sources
PubMed1990

Rupture of the intersesamoid ligament of a soccer player's foot.

The traumatic dislocation of the lateral sesamoid of the flexor hallucis brevis tendon in a soccer player is reported. It was treated surgically by open reduction and ligamentoplasty of the ruptured intersesamoid ligament. Fourteen months after the injury, the patient is fully asymptomatic, and has returned to full activity.

Adult↗
PubMed1991

First metatarsophalangeal joint reaction forces during high-heel gait.

First metatarsophalangeal (MTP) joint reaction forces were calculated for 11 normal females during the toe-off phase of gait while walking in bare feet and in high heeled shoes. A biomechanical model was used to calculate the forces utilizing kinematic, kinetic, footprint, and radiographic data. The results showed that the MTP joint reaction forces (FJ), the metatarsal-sesamoid forces (FS), and the resultant of these forces (FRES), were twice as large in high heels compared to barefoot walking. The average peak forces for barefoot and high-heeled gait were FJ: 0.8 and 1.58 times body weight, FS: 0.44 and 1.03 times body weight, and FRES: 0.93 and 1.88 times body weight. Also, the kinematics changed when wearing high heels, making angles of application of forces and sesamoidal articulations less favorable.

Adult↗
PubMedDate not supplied

Coalition of the hallux sesamoids: a case report.

Multiple variations in partition of the hallux sesamoids have been described; however, to our knowledge, a coalition of the hallux sesamoids has never been presented. A case of coalition of the hallux sesamoids is presented and the literature is reviewed with respect to the possible significance of this anomaly.

Adult↗
PubMedDate not supplied

A new type of dislocation of the first metatarsophalangeal joint: a case report.

We are reporting a case of traumatic dislocation of the first metatarsophalangeal joint that does not correspond to any previously reported type. This new type of dislocation was associated with a rupture of the lateral short sesamophalangeal ligament/plantar plate, partial rupture of the intersesamoid ligament, and separation of a previously bipartite tibial sesamoid. Closed reduction was easily performed; however, the distal portion of the tibial sesamoid remained trapped within the joint. The rationale for and result of surgical treatment are presented.

Adolescent↗
PubMed1993

Morphometric analysis of the plantar plate apparatus of the first metatarsophalangeal joint.

Reliable and reproducible radiographic assessment of plantar plate integrity of the great toe is possible with standard radiographic techniques. Normal values in 100 pairs of feet (200 feet) are defined for comparison of one foot to the other and absolute values emerge if comparison is not possible. Bipartite sesamoids occurred in 13.5% of 200 feet with a 37% bilaterality.

Fibula↗
PubMed1993

Diastasis of bipartite sesamoids of the first metatarsophalangeal joint.

Injury to the metatarsophalangeal (MP) joint of the great toe, often termed "turf-toe", is a common occurrence in football. We have identified four cases of first MP plantar capsular injury with diastasis of a bipartite sesamoid. In three cases, observation and protection resulted in progressive widening of the fragments associated with pain and disability. These players required resection of the distal sesamoid fragment and repair of the volar capsule. The fourth player underwent acute repair of the medial retinaculum and capsule. All players have had a full return to sports activity. Diastasis of components of a partite sesamoid provides objective evidence of disruption of the plantar capsular mechanism. Early recognition of this condition confirmed by stress radiographs is recommended. Treatment may include early protection followed by resection, if painful, or acute repair of the retinaculum. Previous descriptions of turf-toe have not included injuries to the sesamoid complex of the first MP joint. In our opinion, the term turf-toe should represent the consequences of a hyperextension injury to the first MP joint in which the volar capsule has been disrupted proximal to the sesamoid. A classification for first MP joint injuries is presented.

Adult↗
PubMed1993

The blood supply to the great toe sesamoids.

The purpose of this study was to define the intraosseous and extraosseous blood supply of the hallucal sesamoids by studying a total of 10 fresh-frozen, below-knee specimens with no evidence of vascular disease. Most specimens were injected with high grade India ink, cleared using a standard Spalteholz technique, and processed to delineate the extraosseous and intraosseous blood supply to include soft tissue dissection and coronal sectioning. Two additional specimens were injected with blue Mercox acrylic solution to further define the extraosseous vasculature. The major extraosseous blood supply to the sesamoids is via the posterior tibial artery. This vessel then branches into the medial plantar artery which further divides upon entering the medial and lateral sesamoids in their proximal poles. Vessels in the peripheral soft tissues, although abundant, do not seem to penetrate the cortex of the sesamoids. The intraosseous blood supply to the sesamoids seems to be threefold. Mainly, sesamoid arteries enter the lateral and medial sesamoids from the proximal aspect via a single vessel. This proximal vessel proceeds distally with a network of branching. Plantar, nonarticular vessels enter the sesamoids, constituting a second source of vascularity. Finally, small vessels also enter the sesamoids through medial and lateral capsular attachments. Based on this study, a possible explanation for avascular necrosis and nonunion of sesamoids is proposed, and an optimal surgical approach is discussed.(ABSTRACT TRUNCATED AT 250 WORDS)

Blood Vessels↗
PubMed1994

Radiographic changes in the first metatarsal head after distal chevron osteotomy combined with lateral release through a plantar approach.

The purpose of this study was to evaluate the development of clinically significant avascular necrosis of the head of the first metatarsal after: (1) distal metatarsal osteotomy of the chevron configuration beginning apically at the center of the metatarsal head and extending into the head metatarsal neck junction and (2) release of the adductor hallucis muscle, the lateral capsulosesamoid ligament, and the lateral head of the flexor hallucis brevis via fibular sesamoidectomy in the majority of procedures (71/77). Although there were initial radiographic findings suspicious of avascular necrosis, subchondral lucencies (28 feet), mottling (40 feet), and focal lucencies (29 feet) in 76% of the feet, at final follow-up (12-43 months, average 25 months) this figure had fallen to 25%. The range of motion of the first metatarsophalangeal joint and articular symptoms were important in this study because of the assumption that these two parameters of evaluation would correspond to the severity of radiographic evidence of avascular necrosis. Only those patients (8 feet) with persistent mottling at final follow-up had a statistically significant decrease in the average range of motion (P = .013), with 51 degrees total arc of motion compared with 64 degrees total arc of motion for the remainder. There were no patients with persistent radiographic changes suggesting avascular necrosis who complained of pain.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMed1995

Gout as a source of sesamoid pain.

Isolated gout of a great toe sesamoid has not been described previously. We present a case of gout of the medial sesamoid in a young athlete. Because a diagnosis is often elusive in patients with sesamoid pain, it is possible that other cases of gout of a hallucal sesamoid have gone unrecognized. Consideration of this diagnosis might lead to curative medical therapy precluding the need for surgical intervention.

Adolescent↗
PubMed2005

Painful stress fractures of the fabella in patients with total knee arthroplasty.

OBJECTIVE: The purpose of this study was to document a distinct pattern of stress fractures in the fabella of patients with total knee replacement and to call attention to this unusual complication that causes knee pain in postoperative patients. CONCLUSION: Stress fractures involving the fabella can be a clinically important entity in the patient with persistent or new knee pain after total knee arthroplasty. Scrutiny of radiographs, when coupled with clinical information, allows correct diagnosis of this potentially debilitating injury in symptomatic postoperative patients.

Aged↗
PubMed2000

Laminar microvascular flow, measured by means of laser Doppler flowmetry, during the prodromal stages of black walnut-induced laminitis in horses.

OBJECTIVE: To measure changes in laminar microvascular blood flow (LMBF) over time in healthy horses and horses in the prodromal stage of black walnut-induced laminitis and to determine the effects of glyceryl trinitrate application on LMBF in horses with acute laminitis. ANIMALS: 10 healthy adult horses. PROCEDURE: Laser Doppler flowmetry was used to measure LMBF Baseline measurements were obtained, horses were given deionized water via a nasogastric tube, and measurements were obtained hourly for 12 hours. Twenty-four hours later, baseline measurements were again obtained, and horses were given black walnut extract. Measurements were obtained hourly for 12 hours or until development of Obel grade-3 laminitis. At this time, 5 horses were treated with phenylbutazone, and the other 5 were treated with phenylbutazone and glyceryl trinitrate, and measurements were obtained hourly for an additional 12 hours. RESULTS: LMBF was significantly decreased 1 and 2 hours after administration of the black walnut extract but then returned to near-baseline values for the next 6 hours. Eight hours after extract administration, there was a second significant decrease in LMBF that persisted until the end of the study. Glyceryl trinitrate had no effect on LMBF. Clinical signs of laminitis developed 8 to 12 hours after extract administration. CONCLUSIONS AND CLINICAL RELEVANCE: Results suggest that in horses with black walnut-induced laminitis, there is an early decrease in LMBF followed by reperfusion prior to onset of clinical signs. Treatment with glyceryl trinitrate after development of clinical signs of laminitis did not have a significant effect on LMBF.

Animals↗
PubMed2003

Evaluation of the local analgesic effect of ketamine in the palmar digital nerve block at the base of the proximal sesamoid (abaxial sesamoid block) in horses.

OBJECTIVE: To evaluate the local analgesic effect of ketamine in a palmar digital nerve block at the base of the proximal sesamoid (abaxial sesamoid block) in horses. ANIMALS: 36 mature healthy Andalusian horses. PROCEDURE: Horses were randomly assigned to 4 groups of 9 horses each and received an abaxial sesamoid block in a randomly chosen forelimb with 1 of the following: saline (0.9% NaCl) solution, 1% ketamine solution, 2% ketamine solution, or 3% ketamine solution. To determine analgesia, the radiant heat lamp-hoof withdrawal model was used as a noxious thermal stimulus. Before each nerve block, baseline hoof withdrawal reflex latency (HWRL, time between lamp illumination and withdrawal of the hoof) was determined; after the nerve block, local analgesic effects were determined by measuring HWRL at 2 and 5 minutes after injection and then every 5 minutes for a total period of 1 hour. RESULTS: Significant differences in HWRL were found between baseline values and values at 2 to 15 minutes following a nerve block with ketamine. Significant differences were found between HWRL values at every time point from 2 to 10 minutes following a nerve block with saline solution, compared with 1 or 2% ketamine solution. Similarly, significant differences were found between HWRL values at every time point from 2 to 15 minutes following a nerve block with saline solution, compared with 3% ketamine solution. CONCLUSIONS AND CLINICAL RELEVANCE: Abaxial sesamoid block with ketamine ensures adequate analgesia in horses with an onset of action of 2 minutes and a maximal duration of action of 15 minutes.

Anesthesia, Local↗