PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “Ulna”

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 19 recordsLinked to original sources
PubMed1976

Management of massive defects in radius and ulna following wringer injury. A case report.

An unusual case of wringer injury in a 29-month-old child demonstrates extensive loss of the diaphysis of both the radius and ulna. Reconstruction consisted of cortico-cancellous autogenous tibial bone grafting of the radius and ulna in two stages. Follow-up of 24 years showed remodeling and good alignment of the entire radius and ulna, culminating in a good functional and cosmetic result. Extensive soft tissue damage and decreased blood supply result in bone necrosis. There is no reason to bone graft the radius and ulna at the same time.

Accidents, Home↗
PubMedDate not supplied

Bilateral traumatic dislocation of the distal radioulnar joint, ulna dorsal: case report and review of the literature.

Bilateral dislocation of the distal radioulnar joint seems not to have been reported in the literature. This is a report of a 22-year-old man successfully treated with closed reduction and immobilization in long arm casts. Limited forearm rotation and wrist pain after a twisting injury are typical findings. In ulna dorsal dislocation the patient's forearm is locked in pronation. In ulna volar dislocation the wrist appears narrow and the forearm is locked in supination. The mechanism of injury for dorsal dislocations is hyperpronation; for volar dislocations it is hypersupination. Dislocation of the distal radioulnar joint injures the triangular disk and/or fractures the ulnar styloid. Suspicion is important in making the diagnosis. Fifty per cent of unilateral cases reported in the literature were missed initially or were diagnosed late. The acute case is easily treated by closed reduction under local anesthesia and immobilization in a long arm cast. Treatment of the chronic dislocation includes various soft tissue reconstructions or resection of the distal ulna depending on the degree of arthrosis.

Adult↗
PubMed1979

[Solitary bone cysts of the ulna (author's transl)].

The solitary bone cysts occurs most frequently in the upper humerus and femur in 75% of the cases, and it is very seldom located in the ulna, in 0.5--1.5%. This report deals with the treatment results of two children, five and six years old, suffering from solitary bone cysts of the lower end of the ulna. In one case a subtotal resection of the cyst was carried out and the defect was bridged with an autologous iliac bone graft. In the other case the patient was treated by curettage, and the defect was filled in with an autologous bone graft and cancellous bone out of the tibia. In both cases complete cure of the tumorlike lesion was obtained and no loss of function or deformity of the forearm was observed 12 and 16 years after operation. In the X-ray picture at that time there was no alteration on the length, form or structure of the bone.

Bone Cysts↗
PubMed1978

Non-metric features in the ulna of Aegyptopithecus, Alouatta, Ateles, and Lagothrix.

A comparison of the non-metric features of the ulnar fragment (YPM 23940) referred to Aegyptopithecus zeuxis with those in the same bone of Alouatta, Ateles, and Lagothrix -- the three living taxa whose ulnae most closely resemble that of the fossil -- reveals that the closest similarities of the fragment are with the ulna of Alouatta.

Alouatta↗
PubMed1979

Asynchronous growth of the canine radius and ulna: effects of retardation of longitudinal growth of the radius.

After 2,000 rads of x-radiation to the right distal radial physis of eight 70-day-old dogs, the longitudinal growth of the right radius was retarded 42.1% when compared with the growth of the nonirradiated left radius. Asynchronous growth of the right radius and ulna resulted. The gross and radiographic changes that occurred over the subsequent 75 days were described. Subluxation of the humeroradial and humeroulnar joints occurred and was first observed 31 days after irradiation. By 75 days after irradiation, the radius was puller 7.8 mm distally by the radioulnar ligament. However, subluxation of the humeroradial joint was minimized by accelerated growth from the proximal radial physis and articular cartilage. Acceleration of growth also occurred at the distal radial articular cartilage. Growth from the distal ulnar physis and styloid process was retarded. It was thus apparent that after retardation of growth from the distal radial physis, considerable adjustment occurred in the relationship between the radius and the ulna and also in growth from their other physes, which reduced the deleterious effects of the growth retardation.

Animals↗
PubMed1979

[Multiple enchondromas of both hands with ulna hypoplasia and radius dysplasia on the left].

A 33 year old patient with multiple enchondromas of both hands, ulna hypoplasia and radial dysplasia is described. In addition, a deformity of ulna and radius was present on the left side. The first signs of the disease appeared in 1949. The diagnosis, made by biopsy and X-ray was the indication for surgery. The result was very satisfactory. The differences of this undescribed syndrome from Morbus Ollier disease are discussed.

Adult↗
PubMedDate not supplied

Congenital anterior subluxation of the distal ulna. A case report.

A healthy 17-year-old girl with painful congenital subluxation of the distal ulna was successfully treated by surgical stabilization of the distal radioulnar joint. This procedure may avoid or delay the need for resection of the distal end of the ulna.

Adolescent↗
PubMed1979

Long-term results of resection of the distal ulna for post-traumatic conditions.

Sixty-two patients underwent resection of the distal ulna because of pain or limited motion after wrist trauma. The median length of resection was 23 mm. Injury to the distal radioulnar joint occurred primarily during fractures of the distal radius. Followup time averaged 87 months. The primary surgical indication was pain, but some procedures were performed in an effort to increase motion. All patients improved after surgery. Three patients had residual pain, 25 had mild pain, and 34 had no pain. Supination was greatly improved, with only modest improvement in other wrist motions. Four patients developed ulnar translation of the carpus (from 1 to 3 mm). Pseudoarticulation and ulnar regrowth of the carpus were noted, but neither pseudoarticulation nor regrowth was clinically symptomatic. Grip strength improved significantly after surgery, the average from 45.3 to 78.9% of the unaffected wrist. The presence or absence of radiocarpal arthritis preoperatively had no significant effect on the patients' estimates of results. Overall, 51 patients (82%) had satisfactory results. The primary gains were pain relief, increased supination, and increased strength.

Adolescent↗
PubMed1976

Analysis of an early hominid ulna from the Omo Basin, Ethiopia.

The discovery (in 1971) of a nearly complete right ulna from the Shungura Formation of the Omo basin provides the opportunity to abalyze the forelimb structure of the Australopithecus boisei form of early hominid. Results from multivariate morphometric analyses show that this bone is unique in shape among the extant hominoids although it is most similar to Pan and Homo. Despite its long slender shaft and large distal articular surface the bone's overall morphology is quite unlike Pongo.

Animals↗
PubMed1979

Further morphometric studies of the ulna from the Omo Basin, Ethiopia.

A reanalysis of the L40-19 fossil ulna from the Omo Basin, Ethiopia is presented. Using covariance adjustment rather than ratios to correct metric data for variations due to body size, a comparative sample reflecting 21 contemporary Anthropoid taxa, and both distribution-free and multivariate statistical procedures, this study indicates that the earlier conclusion drawn by McHenry et al. ('76), viz., that the fossil is "unique" among Hominoids, is essentially correct. This study also concludes, however, that although the fossil is projected closer to Pan and Homo than to Pongo, the distances are considerably greater than found between behaviorally similar modern forms. Consequently, aside from assigning the fossil on morphometric grounds to the Hominoidea, little else can be said about its possible locomotor habits or its ancestry.

Animals↗
PubMed1978

[Creation of reaction-less pseudoarthrosis on the ulna of the dog (author's transl)].

The model situation of so called "avital, avascular" pseudoarthrosis was surgiclly induced in 25 beagle dogs using defectosteotomy and heat-necrotization of both ulna bones. The clinical evolution was examined weekly using roentgengraphy and each 4th week by scintigraphy. According to roentgen pictures three stages can be identified: 1. Reaction of the bone on surgical trauma (until 4th week). 2. Sequestration or asepticosteolysis (until 18th week). 3. Consolidation of the pseudoarthrosis model-situation (after 18th week). Scintigraphy revealed by the continuing so called "avital" pseudoarthrosis an enhanced metabolism activity at the tips of both bone fragments. The cause for these active metabolic processes evoking enhanced activity on both fragment ends during scintigraphy wich is not demonstrable with roentgen device are the pulling, pushing and tensile strengths originating from a connective-tissue-cord existing between them. The results of scintigraphy lead us to use the term "reaction-less pseudoarthrosis" instead of "avascular" or "avital" for this model of pseudoarthrosis.

Animals↗
PubMed1978

[Physiological increase in the mineral content of the radius and ulna during growth (author's transl)].

Bone mineral estimations were carried out in 273 normal youngsters aged 6 to 18 years using a 125I photon absorption technique. Measurements were carried out at two points on the radius and ulna. Normal values for different ages were calculated for both sexes. Statistical analysis of the data, together with measurements obtained from 773 adults, has shown that the curve derived from children and adolescents merges smoothly with that for adults.

Adolescent↗
PubMed1979

Fractures of the humerus, radius, and ulna in the same extremity.

Fracture of the humerus, radius, and ulna is a rare combined injury. In our review of 21 cases, it was found that this injury was usually a result of rather severe trauma. There are frequently associated injuries to other organ systems. The most common associated injury was residual nerve damage, which occurred in over 50% of cases. Of all the different treatment modalities no one was found to be better than the others.

Adolescent↗
PubMed1979

Congenital pseudarthrosis of the ulna: a case report.

A case of congenital pseudarthrosis of the ulna is described. The inevitability of dislocation of the radial head in the early years of life, is pointed out. Following dislocation of the radial head, creation of a stable single-bone forearm is necessary to prevent loss of hand function due to effective shortening of the long flexors. A method of radioulnar fusion is described. Following such fusion good hand function can be anticipated, as the vital humeroulna radiocarpal joints are intact.

Child↗
PubMed1979

Isolated fractures of the shaft of the ulna.

Fractures of the shaft of the ulna are described and a simple classification is proposed. Statistics are analysed in respect of mode of treatment and time of healing, and the unique mechanism of direct trauma is discussed. This survey showed that operative treatment has no place whatsoever in the treatment of these fractures.

Adolescent↗
PubMed1978

Dysplasia epiphysealis hemimelica of the ulna.

A 3-year-old boy developed an abnormality of the forearm and wrist characterized by asymmetrical overgrowth, premature ossification of the distal ulnar epiphysis, shortening of both bones of the forearm, dorsal bowing of the ulna and formation of an enlarged lunate from 2 ossification centers. The eccentric overgrowth of the distal ulnar epiphysis was similar to the abnormality seen in dysplasia epiphysealis hemimelica of the long bones of the lower limbs, tarsal and carpal bones.

Child, Preschool↗