(a.) Resembling a pea or peas in size and shape; as, a pisiform iron ore.
(n.) A small bone on the ulnar side of the carpus in man and many mammals. See Illust. of Artiodactyla.
Example Sentences:
(1) Our study points to the role of the flexor and extensor carpi ulnaris muscles in the stability of the internal carpus, confirming that the pisiform is a sesamoid bone in the flexor carpi ulnaris tendon.
(2) Since 1986, 7 necrosed lunate bones (Kienbock disease) in 7 patients were replaced by the nearby pisiform bone with a pedicle of its own nutrient vessels and tendon of the flexor carpi ulnaris.
(3) The nerve arises from the ulnar aspect of the ulnar nerve at an average distance of 8.5 centimeters from the proximal border of the pisiforme.
(4) Erosions on the triquetrum and pisiform are frequent in early rheumatoid arthritis and occur characteristically at 3 sites.
(5) Surgical decompression of Guyon's canal with removal of the pisiform bone resulted in a complete cure.
(6) Mechanisms of injury reported in the literature include blunt trauma to the hamulus or pisiform, forceful swinging of a grasped object, or a forceful muscular contraction.
(7) Os multangulum minus and os capitatum as well as os triquetrum and possibly also the os pisiforme showed a synostosis.
(8) Group A received vibration to an area 12.5 cm2 on the ulnar aspect of the palm of the hand 1 cm distal to the pisiform bone.
(9) Degenerative arthritis of the pisotriquetral joint was diagnosed by point tenderness over the pisiform and crepitus elicited by lateral movement of the pisiform on the triquetrum.
(10) If conservative therapy is unsuccessful, relief of pain can be obtained by excision of the pisiform bone.
(11) The accelerative phase of the adolescent growth spurt is accompanied by epiphyseal widths reaching diaphyseal widths in the fingers and radius and by ossification of the pisiform and hamate Stage 1.
(12) Fractures and especially luxations of the pisiform bone are rare injuries of hands, of which X-ray pictures are very important.
(13) Beside measurements of the wall structures in the region of the pisiform bone, the hook of hamate and the entrances of the loge, variations of muscles and the position of the ulnar artery and nerve with their terminal branches have also been examined.
(14) The so-called secondary pisiform is not a congenital variant but develops with increasing frequency in older age as one of the features of the osteoarthritic reactions.
(15) Five of the seven patients came to operation for the following disorder: local, circumscribed chondrosis, chondromatosis of flexor carpi ulnaris with osteochondromatosis, atrophy of the pisiform and in the two cases aseptic osteonecrosis.
(16) The pisiform is the only moving structure of the canalis carpi.
(17) The muscle originates from the medial epicondyle and the fascia of the forearm and inserts into the pisiform bone and retinaculum.
(18) In eight of sixteen patients with symptomatic pisotriquetral joints the pisiform was excised.
(19) In the early stages of lunate necrosis with a minus variant of the ulna the best results were obtained by shortening of the radius otherwise with the pisiform transposition.
(20) The lipoids leaving the vascular paths infiltrate the connective tissue capsule of the pisiform bone and stimulate the formation of osteoblasts at the border between bone and soft tissue.
Ulna
Definition:
(n.) The postaxial bone of the forearm, or branchium, corresponding to the fibula of the hind limb. See Radius.
(n.) An ell; also, a yard.
Example Sentences:
(1) The growth in the revascularized bone grafts has been compared to that in heterotopic, nonvascularized ulna transfers and to normal ulnar growth.
(2) Entrapment of the ring finger flexor digitorum in the ulna following fracture of both forearm bones is very rare.
(3) The length of ulna resected was not related to the outcome of the operation.
(4) The brace extended from the proximal radius and ulna to the level of the radial styloid and allowed a full range of movement at the radiocarpal joint.
(5) A report is given on a small-for-date male infant showing the following symptoms: bilateral aplasia of humerus, radius, and ulna, shortened femora, bilateral cleft lip and cleft palate, stigmata of dysmorphism, and notably; simple helix formation of the ear, simian crease, clinodactylia, bilateral clubfoot deformity, hypospadia, thrombocytopenia, micrognathia, and contractures in the knee joints.
(6) The proximal radius grew 3.5 cm, and the ulna grew 3.4 cm.
(7) Following 8 weeks of loading, areal properties and histomorphometry were performed on both the experimental and intact control ulnae.
(8) A case report of anterior traumatic dislocation of the radial head in a 5-year-old boy without evident injury of the ulna is presented.
(9) The anatomical relations of the semilunar notch of the ulna were studied in radiographs, taken in a strict lateral view, from 100 patients with elbow dislocations.
(10) The allometric relations of diameter and length of humerus, ulna, femur, and tibia of 108 specimens, from 63 different breeds of dogs and 12 specimens of wolves, were calculated by means of model II of regression or major axis method.
(11) Isolated bowing of the ulna is rare, yet its occurrence, particularly in conjunction with congenital dislocation of the radial head, has been documented.
(12) A proposed routine examination method of the wrist and forearm includes a true antero-posterior and a lateral projection of the radius and the ulna, performed with the forearm and wrist in a neutral rotation, a neutral wrist deviation and with the elbow angled 90 degrees.
(13) Most of the caudal articular surfaces of the humeral condyles, the caudal perimeter of the radius, and the trochlear notch and portions of the anconeal process of the ulna could be identified.
(15) Bone mineral content (BMC) and width (W) were measured bilaterally on the radius, ulna, and humerus.
(16) The cortical defect in the ulna of 1 limb was filled with 1 g of ACBG that had been compressed with 2-MPa pressure for 30 seconds.
(17) Removal of the articular disc portion of the triangular fibrocartilage complex decreased the load on the intact ulna from 18.4% to 6.2%.
(18) In patients who were inadequately treated initially, the distal end of the ulna should be excised at the time of the operation on the radius, but a poor result is the inevitable outcome.
(19) Failure to release this structure from the proximal ulna caused kinking and tethering of the nerve when transposition was attempted.
(20) Using the externally loadable, functionally isolated turkey ulna preparation, the ulnae of 1-year-old (n = 5), and 3-year-old (n = 3) turkeys were subjected to 300 cycles per day of a load regimen generating a high but physiologic level of normal strain (3,000 microstrain).