Biomedical subjects

L Swärd

Publications and source records attributed to L Swärd.

41 records · Page 3Linked to original sources

PubMedDate not supplied

Partial rupture of the patellar ligament.

Eighty-one patients with 91 partial ruptures of the patellar ligament verified by ultrasonography were treated conservatively with a standardized training program based on the principles of eccentric loading. The partial ruptures were quantified by measuring the length of the hypoechoic lesion using ultrasonography in longitudinal projection. The partial ruptures were then divided into three groups: Grade I (less than 10 mm), Grade II (10 to 20 mm), and Grade III (greater than 20 mm). The results after the training program were significantly better in Grade I ruptures than in Grades II and III. The overall need for surgery was 29.6%: highest in Grade III ruptures (38.5%) and lowest in Grade I ruptures (6.6%). The outcome of conservative management, as well as the need for surgery of partial ruptures of the patellar ligament, may to some extent be predicted by the use of ultrasonography.

Adolescent↗

PubMedDate not supplied

Ultrasonography of chronic tendon injuries in the groin.

Ultrasonography was used in the diagnosis of 36 patients with chronic groin pain localized to the tendons of the rectus abdominis, rectus femoris, adductor muscles, hamstring muscles, and the gluteal muscles. Abnormal findings, such as focal sonolucent areas and discontinuity of tendon fibers, that are indicative of nonhealed partial ruptures were found in 28 patients. These findings differed clearly from the asymptomatic contralateral side, which was used for comparison. The abnormalities were located in three different sites: at the tendon insertion, within the tendon, and at the tendomuscular junction. Ten patients were treated surgically and the findings at surgery correlated well with the ultrasonographic findings of partial tendon tears: 9 were true-positive and 1 was a true-negative. Ultrasonography appears to be a valuable method in the diagnosis of chronic groin pain.

Adolescent↗

PubMedDate not supplied

Vertebral ring apophysis injury in athletes. Is the etiology different in the thoracic and lumbar spine?

In a radiologic study of the thoracolumbar spine in 143 athletes aged 14 to 25 years and 30 male nonathletes aged 19 to 25 years, abnormalities of the vertebral ring apophyses were analyzed. Abnormalities affecting the anterior part of the vertebral ring apophysis occurred exclusively in athletes and they were most common in wrestlers and female gymnasts. Different types of abnormalities were found and the type of abnormality was related to the spinal level. We propose that this is related to trauma of various types. Excavation of the anterior part of the vertebra, probably from compression forces, was mainly found in the thoracic and thoracolumbar junction of the spine. Persisting or enlarged apophysis, probably caused by avulsion of the anterior part of the vertebral ring apophysis, was only found in the lumbar spine.

Adolescent↗

PubMedDate not supplied

Comparison of two anatomic reconstructions for chronic lateral instability of the ankle joint.

Two anatomic reconstructions for correction of chronic lateral ankle joint instability were compared. In a prospective, randomized study, 60 patients were allocated to one of two treatment groups: reconstruction of the ligaments as described by Karlsson et al. (Group I) or with the modification of the Broström procedure as described by Gould et al. (Group II). The functional results were evaluated with a scoring scale, and the mechanical stability with standardized stress radiographs. The minimum follow-up period was 2 years. The functional results were satisfactory in 27 of 30 (90%) patients in Group I and 25 of 30 (83%) in Group II. There was no significant difference between the groups regarding mechanical stability. The mean anterior talar translation in Group I was 7.1 mm (range, 4 to 10) at followup, compared with 6.7 mm (range, 3 to 9) in Group II. The corresponding values for talar tilt were 4.9 degrees (range, 0 degree to 8 degrees) in Group I and 4.4 degrees (range, 0 degree to 8 degrees) in Group II. The duration of operation time was significantly longer in Group II and surgical complications were more frequent, probably due to the more extensive surgical exposure. This study showed that the majority of patients with chronic ankle instability can be successfully treated with anatomic reconstruction of the lateral ankle ligaments. Mechanical stability was restored with both methods.

Activities of Daily Living↗

PubMedDate not supplied

Spondylolysis and the sacro-horizontal angle in athletes.

The frequency of spondylolysis and the relationship between spondylolysis and the sacro-horizontal angle in 143 athletes and 30 non-athletes is reported. Athletes had a larger sacro-horizontal angle than non-athletes. The sacro-horizontal angle was larger in athletes with spondylolysis as compared with those without. An increased incidence of spondylolysis with an increased angle was demonstrated. It is suggested that an increased sacro-horizontal angle may predispose to spondylolysis, especially in combination with the high mechanical loads sustained in certain sports.

Adolescent↗