• Korean Journal of Veterinary Service
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• v.33 no.4
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• pp.361-366
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• 2010

This study was carried out to investigate the characters of short-tailed dogs (DongGyeong dogs) with anatomical insights, molecular genetics in Gyeongju. The present study was conducted to further characterize of short-tailed dog population in Gyeongju. The short-tailed dog was analyzed in the distribution of 55 individual. The anatomical insights were by x-ray. For discovery of specific genes expressions were measured by Hot-start PCR analysis. Anatomy survey, the number of vertebral typical consists of more than 20. 88.9% of short-tailed dog populations consists of 3-8 vertebrates. The 54 individuals of the 47 observe the vestigial tailed of the sacrum. No detected sacrococcygeal vertebrae degradation individuals were malformation defects. The 3 genes were DEGs (differentially expressed genes) in Dong-Gyeong dogs. We succeeded in finding 3 novel DongGyeong dogs specific genes by using Hot-start PCR analysis, this study suggests that these novel genes may play role (s) in DongGyeong dogs.

• The Korean Journal of Pain
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• v.9 no.2
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• pp.415-418
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• 1996

The first reported the neural blockade of ganglion impar for pain control of perineal pain in 1990 by Plancarte and his fellows. they used 6ml of 10 percent phenol. but the point of issues, same as other neurolytics, are that it is impossible to check and control its spreading, so it might be possible to destruct the coccygeal plexus and sacral nerve, and also it has only short action time. Because of these problems, it could be very dangerous to attempt this procedure especially not for relieving the pain on cancer terminal patient, but for the sympathectomy of ganglion impar on the other purpose. We used the RF generator which had the control ability to point out the destructive lesion accurately. inserted We made the small burr hole on the sacrum near the sacrococcygeal junction directly, through the hole, and performed thermocoagulation to the ganglion impar.

• The Korean Journal of Pain
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• v.21 no.3
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• pp.229-232
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• 2008

Insufficiency fractures of the sacrum are relatively common and cause severe low back and buttock pain. Percutaneous vertebroplasty is effective for treating vertebral compression fractures. We present a case of percutaneous sacroplasty for the treatment of low back and buttock pain in a sacral insufficiency fracture. A 79-year-old male with non-small lung cancer presented with severe low back and buttock pain after series of radiation treatments. Preoperative MRI showed both a sacral ala and S2 metastatic insufficiency fracture. An epidural port was inserted for continuous morphine infusion and sacral nerve root blocks were performed. However, his pain did not diminish and we attempted percutaneous sacroplasty. Both sides of the sacroplasty were done with a fluoroscopy-guided technique with 1.7 ml and 2.3 ml of bone cement injected into the right and left sacral ala. Pain relief was significant and the patient was able to sit down 1 day after the procedure.

• Journal of Biomedical Engineering Research
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• v.14 no.3
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• pp.235-242
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• 1993

In the early stage of sacroilitis, it is'difficult to detect sacroiliac(Sl) abnormalities by conventional plain X-ray even though there are characteristic symptoms of ankylosing spondylitis. 3 dimensional volume rendering from the CT image was performed to make an early de tection of the structural changes of Sl joint. 2 cases who had clinical impression of ankylosing spondylitis without sacroilitis in plane X-ray and 1 case of typical ankylosing spondylitis as well as 1 case of normal control were studied. The Sl Joints were separated and each joint surface of sacrum and ilium was independently reconstructed by a special 3D manipulation program. All 2 patiant who complained of inflammatory lower back pain with no abnormal findings in the plain X-ray showed structural changes in 3 dimensionally reconstructed surface Image of the Sl joint compared to the normal control. Authors tried several parameters, such as fourler analysis of each surface and the mean and variance of Sl joint gap. We couldn't tell the statistical significance because of the limited number of cases. However, the parameters showed difference according to the progression of disease.

• Journal of Yeungnam Medical Science
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• v.5 no.2
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• pp.255-261
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• 1988

Conjoined twinning is a rare congenital malformation, accounting for 1% of monozygotic twins. Conjoined twins result if twining is initiated after the embryonic disc and rudimentary amnionic sac have been formed and if division of the embryonic disc is incomplete. Recently we experienced a case of conjoined twins, dicephalus dipus dibrachius, who had died at 3 hours of life, and performed autopsy. Autopsy revealed a total duplication of the heads, spines up to sacrum, small bowels, thymus and lungs. Two hearts existed within a common pericardium.

• The Korean Journal of Pain
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• v.8 no.1
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• pp.149-151
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• 1995

Piriformis syndrome is a syndrome of low back and leg radiating pain thought to be due to a chronic contracture of the piriformis muscle that causes irritation of the sciatic nerve. The piriformis muscle is a flat pyramidal muscle, an external rotator and abductor of the hip, originating from the front of the sacrum and inner aspect of the sacroiliac joint, then passes laterally out of the sciatic notch to attach posteriorly to the greater trochanter of the femur, the sciatic nerve passes between the two bellies of the muscle. Mechanical irritation of the sciatic nerve by an inflammatory reaction of the piriformis muscle and its fascia at this pelvic level causes pain to radiate in the dermatomal regions of the nerve roots similar to that disk entrapment. diagnosis of piriformis syndrome is made primary on the basis of history and clinical examination. The incidence is considerably higher in women, with the reported ratio of women to men of 6:1. These patients frequently present with associated symptoms of pelvic pain and/or dyspareunia. Symptoms are usually unilateral but occasionally be bilateral. We had a 42 year-old woman patient with low back and left leg radiating pain and dyspareunia treated by caudal steroid and local anesthetic.

• Journal of Biomedical Engineering Research
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• v.24 no.5
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• pp.435-442
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• 2003

In this paper, biomechanical aspects of dynamic대학교postural responses against forward perturbations were experimentally determined simultaneous measurements of joint angles, accelerations. EMG activations, center of pressure(CoP) movements and ground reaction forces(GRF), Thirteen young healthy volunteers, stood on a flat platform, were translated into the forward direction by an AC servo-motor at two separate velocities(0.1m and 0.2m/s). In order to recover postural balance against the forward perturbation, joint motions were observed in the sequence of the ankle dorsiflexion, the knee flexion and then the hip flexion during the later acceleration phase. Both acceleration patterns at the heel and the sacrum were shown the forward acceleration pattern during the later acceleration phase and early of constant velocity phase as increasing platform velocity, respectively. Tibialis anterior(TA) for the ankle dorsiflexion and biceps femoris(BF) for the knee flexion. the primary muscle to recover the forward perturbation, was activated during the half of acceleration phase. Ankle strategy was used for slow-velocity perturbation, but mixed strategy of both ankle and hip used for the fast-velocity perturbation. In addition, parameters of perturbation such as timing and magnitude influenced the postural response against the perturbation.

• Journal of Korean Neurosurgical Society
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• v.47 no.1
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• pp.58-63
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• 2010

Sacral insufficiency fracture is a debilitating injury not easily found in general radiologic examinations and is rarely diagnosed, since its symptoms are obscure. It is known to frequently occur in patients with osteoporosis, but the treatment has not yet been established and various kinds of treatment methods are being attempted. Sacroplasty is sometimes performed by applying percutaneous vertebroplasty which is known to be a less invasive treatment. Since the course of diagnosis of sacral insufficiency fracture is difficult and clear guidelines for treatments have not yet been established, many spine surgeons fail to diagnose patients or speculate on treatment methods. We report our experience in diagnosing a sacral insufficiency fracture in a 54-year-old healthy female patient using MRI and treating her with sacroplasty. From a therapeutic point of view, we then cover the usefulness, effects and characteristics relating to the complications of sacroplasty, along with literature review.

• The Journal of the Korean bone and joint tumor society
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• v.13 no.2
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• pp.142-145
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• 2007

Gastrointestinal stromal tumor (GIST) occurring outside the gastrointestinal tract is uncommon. When GIST is found outside the gastrointestinal tract, it has greater possibility to be diagnosed with metastatic lesion from other primary focus. But it rarely occurs in extragastrointestinal tract primarily, and then even outside abdomen. We experienced one case of GIST occurred from right buttock area of 25 year-old man. We could not find out the primary focus in abdomen. The tumor was developed inside gluteus medius and minimus and extended to pelvic inner area destroying iliac bone and adjacent sacrum. Here, we report the case of GIST with terminology of extragastrointestinal stromal tumor (EGIST).

• Journal of Korean Foot and Ankle Society
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• v.19 no.1
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• pp.27-31
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• 2015

Intraosseous lipoma is a benign tumor that originates from proliferating mature lipocytes. It often occurs in the metaphysis of long bones of the lower extremity, and also in the calcaneus, humerus, mandible, sacrum, and rib bones. Frequently, it involutes spontaneously through a process of infarction, calcification, and cyst formation. It can either present as pain, or be asymptomatic and only discovered through an incidental radiological finding. In our case, the patient presented with heel pain. Intraoperatively, it was found that the intraosseous cavity was filled with fat along with an adjacent but separate area of cystic degeneration. There was also a cortical perforation at the cystic lesion which was communicating with the subtalar joint. This cortical breach is most likely the cause of diffuse lateral heel pain experienced by our patient, and such a pathological fracture due to intraosseous lipoma has never been reported.