Search PubMed⌕ Search

Biomedical subjects

O Paar

Publications and source records attributed to O Paar.

At least 55 records · Page 3Linked to original sources
PubMed1988

[Computed tomography of the menisci].

Thirty patients were examined with CT of the menisci. All findings were confirmed by arthroscopy. One false positive diagnosis of a torn meniscus was made, caused by partial volume effect. In seven patients with irregular degenerative changes of the menisci, the abnormality could be clearly demonstrated. One meniscus ganglion was shown. Seven meniscus lesions, which were not shown by arthrography or arthroscopy, were clearly demonstrated by CT. The computer tomographic demonstration of menisci can replace knee arthrography as the examination of choice and should be performed before carrying out arthroscopy.

Adult↗
PubMed1988

[Changes in pressure and contact surface of the talar joint surface in various foot angle positions and following stepwise division of the fibular ligaments--an experimental study].

Pressure and area of contact curves of the ankle joint were determined in various degrees of flexion and with the external ligaments in different states of severance or division, using five ankle joint preparations as basis. The largest contact area and most uniform pressure distribution were seen if the ankle was in normal position and at a plantar flexion of five degrees. After injury of the external ligaments there was either a reduction of the area of contact associated with a pressure increase, or an increase of the area of contact associated with an inhomogeneous pressure distribution. The greatest loss in area of contact and pressure increase occurred after lesion of the fibular ligaments in supination and supination/plantar flexion of the foot. The moment of rotation for supinatory forces applied to the margin of the foot, increased continuously in that case.

Ankle Injuries↗
PubMed1988

[Fresh rupture of the inner ligament of the knee joint. An analysis of a sports traumatologic patient sample from 1981 to 1987].

Acute injuries of the medial collateral ligament occur either isolated or in combination with lesions of the cruciated ligament and medial meniscus. 126 patients were investigated retrospectively and special attention was drawn to the distribution and kind of ruptures. All distal lesions of the ligament and the most of intraligamental ruptures were combined with injuries of the anterior cruciated ligament and posterior portion of the medial meniscus. On the contrary the more favourable proximal lesions were found "isolated" as well. But in these cases an elongation of the ligamentum popliteum obliquum and a dischargement of the posterior parts of the medial meniscus were common. True isolated lesions of the medial collateral ligament were found if only the deep ligamental layers were involved. Special attention is drawn to the large variety of surgical possibilities.

Adolescent↗
PubMed1986

[Alloplastic treatment of knee ligaments. Experience using artificial support in fresh injuries of the inner ligament].

From November 1983 to July 1985 a plastic reinforcement of the collateral medial ligament was performed in 14 patients. In all cases there was an additional reconstruction of the anterior cruciate ligament and a partial resection respectively refixation of the medial meniscus. In order to confirm the collateral ligament alloplastically in 6 cases a non-resorbable plastic connection (Gore-Tex patch), in 8 cases a resorbable plastic connection (PDS) was used. All the patients could be clinically reinvestigated on an average of 13 months after the operation. The results are presented.

Athletic Injuries↗
PubMed1985

[Imaging of the Achilles tendon on the computed tomogram. Normal findings and pathological changes].

Ligaments and tendons, including the Achilles tendon, show the highest density among normal soft tissue structures in the body. Traumatic and degenerative changes of the Achilles tendon are often associated with marked thickening and reduction in density associated with increased opacity of the space in front of the Achilles tendon. These changes are easily demonstrated by CT, whereas conventional radiological techniques only show non-specific changes. Twenty-five patients were examined, including nine with pain, seven following rupture of the Achilles tendon and nine post-operative controls; it was found that CT can add information important for the diagnosis and treatment planning of abnormalities of the Achilles tendon.

Achilles Tendon↗
PubMed1985

[Fresh and older elongation of the anterior cruciate ligament. Experiences in diagnosis and therapy].

The elongation of the anterior cruciate ligament leads to a ligamentary insufficiency which is followed by an instability of the knee joint. After acute trauma isolated second degree sprains may be treated conservatively, while old elongations, with a secondary laceration of the anterior-medial ligamentary structures, have to be treated operatively. We use the transpositions of the anterior cruciate ligament also in combination with the semitendinous tendon. Since 1980 at our department 36 old elongations of the anterior cruciate ligament were treated by operative reefing of the ligamentary structures. The best results as documented in a clinical and CT-Scan follow-up, were recorded when using a distalisation of the insertion of the anterior cruciate ligament together with a semitendinous transplant.

Follow-Up Studies↗