Open reduction and stabilisation of coxofemoral joint luxation was made via a ventral approach to the hip joint in dogs and cats, using a transarticular stainless steel rope. A feature of the procedure is transarticular penetration of the rope from the pelvic cavity to the femoral neck by guidance with a guide wire which was previously inserted from the femoral neck into the pelvic cavity and by detection of the guide wire in the pelvic cavity by use of forceps connected to an alarm-ohmmeter. Forty-seven animals (37 dogs and 10 cats) with acute and simple coxofemoral luxation were treated and postoperatively maintained in cage rest without external fixation. Most of the animals regained an almost normal gait within several days.

The morphometric anatomy of the superficial cerebral veins in relation to cerebral gyri was studied in 244 cadaveric cerebral hemispheres. Our morphometry revealed that the position of the central sulcus and that of the parieto-occipital sulcus near the superior sagittal sinus were at 55% and 83.6% respectively of the half-perimeter running from the frontal pole to the occipital pole (FO). The drainage position of the central sulcal vein (of Rolando) into the superior sagittal sinus was about 65% of the FO half-perimeter on each side. The three main drainage veins among the superficial cerebral veins are classified into four types: (1) left predominant, (2) right predominant, (3) no laterality, and (4) absent. No laterality predominance was observed regarding the superficial middle cerebral vein (of Sylvius). The inferior anastomotic vein (of Labbe), however, was predominant on the left hemisphere. The superior anastomotic vein (of Trolard) was observed with similar frequency in each type. In conclusion, the superficial cerebral veins can be classified into eight different types according to venous drainages.

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We retrospectively evaluated the efficacy of combination therapy with steroid and hyperbaric oxygenation for sudden idiopathic sensorineural hearing loss (SISNHL). Patients (n: 109; 111 ears) visited our clinic within 14 days from onset before receiving treatment between January 1999 and March 2003. Hearing loss was assessed based on criteria prepared by the Ministry of Health and Welfare Acute Severe Hearing Loss Study Group. Patients were distributed into Group I-95 patients who started treatment within 7 days from onset-, and Group II-14 patients who started treatment within 8-14 days from onset. We evaluated the outcome of therapy using grading established by The Research Committee on Acute Profound Deafness, Ministry of Health and Welfare, Japan. The complete recovery of hearing was worse in patients with severe hearing loss. It was 4.8% in grade 4a, 18.2% in grade 3a, 25% in grade 2a, 20.0% in grade 4b, 38.5% in grade 3b, and 66.7% in grade 2b. We studied the relationship between type of hearing loss and recovery after treatment. The complete recovery of hearing was most favorable in patients with low tone hearing loss, followed by those with middle tone hearing loss and those with horizontal hearing loss. These findings indicate that the type of hearing loss was the most significant determinant of SISNHL prognosis and course. Twenty patients with acute stage SISNHL had diabetes mellitus. The recovery of hearing was almost the same in those with and without diabetes mellitus. Recovery was complete in 32.4%, Niarked in 32.4%, and slight in 21.6%. In 13.5%, no change was observed. Our results and data from previous reports, involving more than 70 Japanese patients treated with steroids alone, suggest that combination therapy with steroid and hyperbaric oxygenation is effective for SISNHL.

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