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[Long-term results of active-passive ligament repair of the external lateral ligament of the ankle].

We reviewed 95 ankles at an average of 9 years after an "activo-passive" operation performed for chronic lateral instability. All the patients had suffered recurrent ankle sprain or instability, with pain in 67 patients. Ten ankles showed a subtalar injury at operation. Degenerative changes were noted in 11 ankle joints. On review, 81 ankles (85%) were stable. The 14 cases with persistent instability had developed the problem one to five years after operation. Two cases presented with limitation in mobility. Osteoarthritis, found in 15 ankles, was severe in only two, and had been present on preoperative films. We found no correlation between functional results (talar tilt, anterior-drawer test) and radiological evaluation. The "activo-passive" operation provides long-term stabilization with preservation of the ankle and of subtalar mobility without severe osteoarthritis.

Adolescent↗

[Basic research in ultrasound surgery. VII. Comparative animal experiments after intestinal anastomosis by suturing, ligament gluing with Fimomed and ultrasound sealing with ligament Fimomed].

Animal experimental anastomoses in the small intestine of Mini-Lewe-pigs showed that even sufficient anastomoses free of stenosis can be obtained by using the sticking respectively the ultrasound sealing method. The foreign-body reaction in the surroundings of the suture was approximately equally strong as on the gluten. All animals did not show any specialty in the postoperative course. The use of butylcyanidacrylic is possible in the human intestine as also shown in the literature. The use is indicated if advantages are to be expected in face of a suture anastomosis in clinical sight.

Anastomosis, Surgical↗

Ligamentous ossification of the cervical spine in the late middle-aged Japanese men. Its relation to body mass index and glucose metabolism.

STUDY DESIGN: The present study investigated the relationship of obesity and glucose metabolism in persons with ossification of the anterior longitudinal ligament, ossification of the nucal ligament, and ossification of the posterior longitudinal ligament of the cervical spine. OBJECTIVE: To provide a insight into the etiology of ligamentous ossification of the cervical spine. SUMMARY OF BACKGROUND DATA: The high incidence of ligamentous ossification of the cervical spine with obese patients has been reported, but no definite association was reported between the incidence of ossification of the anterior longitudinal ligament, ossification of the nucal ligament, and ossification of the posterior longitudinal ligament and their bone mass index values. METHODS: Lateral cervical radiographs and 75 g oral glucose tolerance tests of more than 4802 Japanese men aged 48-57 years at the Self Defense Force Hansin Hospital were evaluated. RESULTS: The incidences of ossification of the anterior longitudinal ligament, ossification of the nucal ligament, and ossification of the posterior longitudinal ligament were 23.1% (1110 of 4802), 23.3% (1117 of 4802) and 4.1% (198 of 4802), respectively. In the groups whose body mass index was 25 or more, the incidences of ossification of the anterior longitudinal ligament, ossification of the nucal ligament, and ossification of the posterior longitudinal ligament were significantly high (P < 0.01). The higher incidence of diabetes or impaired glucose tolerance was statistically significant in ossification of the anterior longitudinal ligament and ossification of the posterior longitudinal ligament but not in ossification of the nucal ligament. The rates, which showed significantly high glucose response by 1-hour or 2-hour plasma glucose level after oral glucose tolerance tests with body mass index-matched control subjects, were ossification of the anterior longitudinal ligament, 93.5%; ossification of the posterior longitudinal ligament, 52.0%; and ossification of the nucal ligament, 14.0%, respectively. CONCLUSIONS: From this study, obesity was shown to be the major risk factor of ossification of the nucal ligament, and obesity and glucose intolerance were risk factors in ossification of the anterior longitudinal ligament and ossification of the posterior longitudinal ligament. The authors concluded the morbidity rates of ossification of the anterior longitudinal ligament. ossification of the nucal ligament, and ossification of the posterior longitudinal ligament were high in obesity, however, concerning the glucose intolerance, ossification of the nucal ligament is etiologically different from ossification of the anterior longitudinal ligament and ossification of the posteior longitudinal ligament.

Blood Glucose↗

Tarsal autografts for reconstruction of the scapholunate interosseous ligament: a biomechanical study.

A biomechanical cadaver study was performed to identify a potential bone-ligament-bone autograft from the foot for reconstruction of the scapholunate interosseous ligament (SLIL). In this study the biomechanical properties of 9 dorsal tarsal ligaments and the anterior tibiofibular ligament were investigated and compared with those of the dorsal part of the SLIL. Fifteen fresh-frozen human cadaver feet and 14 fresh-frozen human cadaver wrists were used. In a Monsanto Tensometer testing apparatus (Monsanto Limited Instruments, Dorean Swindon, England) the complexes were uniaxially elongated at a constant velocity of 6.35 mm/min until rupture occurred. The stiffness and strength values for each tarsal ligament were calculated and compared with those of the dorsal part of the SL ligament. Analysis indicated that the third dorsal tarsometatarsal ligament (143 +/- 42 N) and the dorsal calcaneocuboid ligament (149 +/- 41 N) were comparable to the dorsal part of the SL ligament (141 +/- 20 N) while all other ligaments were stronger. The stiffness values of the third dorsal tarsometatarsal ligament (67 +/- 17 N/mm) and the dorsal calcaneocuboid ligament (55 +/- 14 N/mm) were comparable to the dorsal part of the SL ligament (61 +/- 6 N/mm). All the other ligaments had values that were higher than the dorsal part of the SL ligament. The strongest ligament appeared to be the medial dorsal cuneonavicular ligament (479 +/- 65 N), which had a stiffness value of 127 +/- 19 N/mm. Although the third dorsal tarsometatarsal ligament and the dorsal calcaneocuboid ligament are biomechanically most similar to the dorsal part of the SLIL, at present it is unclear how strength and stiffness values of ligaments are sustained following transplantation. From this selection of tarsal ligaments, the medial dorsal cuneonavicular ligament is the strongest ligament and it is therefore concluded that this ligament is the most suitable ligament to be used as an autograft for reconstruction of the SLIL.

Biomechanical Phenomena↗

The incidence and cross-sectional area of the meniscofemoral ligament.

BACKGROUND: The incidence, morphologic characteristics, and cross-sectional area of meniscofemoral ligaments of the knee are still not clarified. HYPOTHESIS: The incidence of meniscofemoral ligaments is very high, and they contribute significantly to the cross-sectional area of the posterior cruciate ligament complex. STUDY DESIGN: Descriptive laboratory study. METHODS: Clinical study: During arthroscopic anterior cruciate ligament reconstruction, the presence of a meniscofemoral ligament was confirmed in 38 patients (16 men, 22 women; mean age, 23.6 years) by observation and probing. Laboratory study: Posterior cruciate ligaments with the lateral meniscus attached were obtained as specimens from 30 patients (3 men, 27 women; mean age, 71.9 years) during total knee arthroplasty. The posterior cruciate ligament and meniscofemoral ligaments were observed, and the cross-sectional area was measured using an area micrometer. RESULTS: Clinical study: The anterior meniscofemoral ligament was found in 36.8% of patients, the posterior meniscofemoral ligament was found in 71.1%, and both ligaments were found in 26.7%. The overall incidence of at least 1 meniscofemoral ligament was 84.2%. Laboratory study: The anterior meniscofemoral ligament was present in 5 (16.7%) cases, and the posterior meniscofemoral ligament was present in all cases (100.0%). The cross-sectional area of the posterior cruciate ligament proper was 50.1 +/- 16.9 mm(2), that of the anterior meniscofemoral ligament was 2.3 +/- 1.2 mm(2), and that of the posterior meniscofemoral ligament was 7.5 +/- 2.5 mm(2). The mean ratio of the cross-sectional area of meniscofemoral ligaments to the posterior cruciate ligament proper was 17.2% (4.0%-38.9%). The origin of the posterior meniscofemoral ligament from the posterior horn of the lateral meniscus could be classified into 5 types. CONCLUSION: The meniscofemoral ligaments contributed significantly to the cross-sectional area of the posterior cruciate ligament complex.

Adult↗