• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.36 no.2
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• pp.134-140
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• 2010

Synovial condromatosis of the temporomandibular joint (TMJ) is characterized by the presence of loose bodies (joint mices). It can be confused with temporomandibular disorder clinically, and be with chondrosarcoma histologically. The purpose of this clinical report was to review the clinical, radiological, arthroscopic findings, histological feature and the results of surgical treatment of TMJ synovial chondromatosis. Four patients presented with pain of TMJ and limited mouth opening. The dynamic magnetic resonance imaging (MRI) disclosed a characteristic morphologic changes and displacement of the meniscus with limited translation of the condyle head. Bone scans showed progressive resorptive changes with hot-uptake of the radioisotope. The synovial loose bodies in the joint spaces were removed and sent to pathology for diagnosis as the synovial chondromatosis. The follow-up examination with computed tomography (CT) and MRI revealed no evidence of recurrence and good in function until postoperative 18 months. Diagnostically, the distension of the lateral capsule and fluid findings in the joint on the MRI are very suggestive tool for this synovial chondromatosis, but they are not always detected on the preoperative MRI. Arthroscopic approaches are very useful to inspect the joint spaces and to remove the loose bodies without interruption of the whole synovial membranes.

• Clinics in Shoulder and Elbow
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• v.7 no.2
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• pp.76-82
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• 2004

Purpose: In the traumatic anterior shoulder instability, the laxity of joint capsule and ligament is frequently demonstrated. Although a arthroscopic procedure to address anterior instability with joint capsular redundancy have generally provided good results, its recurrence rate is higher than open procedure. By reducing the capsular redundancy, thermal shrinkage is likely to improve the outcome of arthroscopic anterior stabilization. The objective of this study was to evaluate additional thermal capsular shrinkage as a treatment of joint capsular redundancy in anterior shoulder instability. Materials and Methods: From March 1999 to June 2000, 25 shoulders of 23 patients of recurrent anterior shoulder dislocation underwent arthroscopic Bankart repair with shrinkage procedure. The mean follow up was 29 months and average age at the time of operation was 26 years. Of these patients, 20 were male and 3 were female who had been experienced the average 8 times of dislocation before operation. Thermal shrinkage alone without Bankart repair was performed in two cases who did not have Bankart lesion. The clinical result was evaluated in according to Modified Rowe Score. Results: The Modified Rowe Score was improved from preoperative 35 points to postoperative 88 points. None of cases showed recurrence of dislocation. But, in two cases, temporary sensory hypesthesia of the axillary nerve was developed and in two cases of postoperative stiffness, arthroscopic capsular release and brisement were performed. Conclusion: Additional capsular shrinkage in arthroscopic technique to address recurrent anterior shoulder instability could treat effectively the capsular redundancy.

• Journal of Korean Neurosurgical Society
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• v.30 no.3
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• pp.358-365
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• 2001

Objectives : Although posterior lumbar fusion operations had been reported to accelerate spinal degeneration, there have been only a few studies for their biomechanical effects. We have studied the change of motion range at the vertebral joint one level above the fusion(UVJ) in pedicle screw fixation group(PSF)(n=13) where facet capsule was destroyed and in posterior lumbar interbody fusion group(PLIF)(n=8) where it was spared. Patients and Methods : The patients were divided into early(3 to 6 months) and late(over 12 months) according to postoperative follow-up period. The flexion, extension and flexion-extension angles(FA, EA, FEA) were measured at the UVJ with pre-operative, early and late post-operative films. Results : Mean age and male to female ratio were $52.7{\pm}9.3$ and 1 : 3.2. Mean follow-up periods were $144.1{\pm}30.0$ and $528.8{\pm}160.3$ days in early and late groups, respectively. The FEA and FA in the late PSF($11.8{\pm}3.1$, $8.5{\pm}2.9$) were significantly greater than pre-operative angles($7.8{\pm}3.9$, $5.1{\pm}3.7$)(p<0.01, p<0.05). All angles in the PLIF showed no significant changes with time. The FEA and FA in the late PSF($11.8{\pm}3.1$, $8.5{\pm}2.9$) were significantly greater than those of the late PLIF($7.6{\pm}2.3$, $3.4{\pm}2.0$)(p<0.01, p<0.001). All angles at early follow-up period were similar between PSF and PLIF. The EA showed no significant change in relation with follow-up period or fusion method. Conclusion : As a result, the facet capsule injury in pedicle screw fixation seems to be related with increased flexion angle or degeneration of the adjacent joint above the fused vertebra in the late phase.

• Physical Therapy Korea
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• v.15 no.1
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• pp.69-76
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• 2008

This study was designed to determine the effects of swimming and low power laser on rheumatoid arthritis in Sprague-Dawley rats. Rheumatoid arthritis was induced in 36 rats among 48 Sprague-Dawley rats by the subcutaneous injection of .05 $m{\ell}$ Freund's Complete Adjuvant into the right hind paw and .05 $m{\ell}$ Freund's Complete Adjuvant into the right hind knee joint capsule. A second injection was performed by the same method using .1 $m{\ell}$ Freund's Complete Adjuvant per a rat. Arthritic rats were divided into 8 groups: each 1 week and 2 weeks of arthritic swimming, arthritic laser, arthritic case control and normal group. In this study, several experimental tests were performed to determine the concentration of Interleukin-6, the space of the knee joint and the thickness of the hind paw. The concentration of Interleukin-6 and hind paw thickness decreased in the swimming group and laser group as compared to the control group. The space of the knee joint increased significantly after the swimming exercise. Swimming and low power laser therapy positively affect rheumatoid arthritis in rats affect by decreasing the concentration of Interleukin-6 and hind paw thickness, and increasing the space of the knee joint.

• The Journal of the Korean bone and joint tumor society
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• v.6 no.2
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• pp.88-91
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• 2000

The osteochondroma is the most common benign bone tumor, which occupies 40% of the benign bone tumor. About 80% of lesions arise in the long bone of the extremities, particularly in the knee and the upper extremity. But the occurrence of an intraarticular osteochondroma is rare, especially in the interphalangeal joint. We report the case of a intraarticular osteochondroma which occurred at the interphalangeal joint of the hand in a 12-year-old male patient. The plain X-ray demonstrates an exostosis arising from intraarticular dorsal aspect of the proximal phalanx of the right middle finger. The excised mass was round, measuring $8{\times}3$mm in size and 1 mm in thickness with definite cartilage capsule.

• Journal of Physiology & Pathology in Korean Medicine
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• v.25 no.5
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• pp.870-875
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• 2011

Arthritis of the knee is the most common type of joint inflammatory disorder and it is associated with pain and inflammation of the joint capsule. The aim of present study was to investigate the endogenous effect of low intensity laser acupuncture on collagen-induced arthritis in rats. Forty Sprague-Dawley rats were randomly divided into normal group, arthritis group, low laser group with 10 rats in each group. Arthritis in rats was induced by subcutaneous injection of type II collagen combined with complete Freund's adjuvant. Here we investigated the effects of low intensity laser therapy in experimentally induced rat knee arthritis. To evaluate preventive and therapeutic effects of low intensity laser acupuncture on collagen-induced arthritis rats. In collagen induced arthritic rats, there was significant increase in rat paw volume and decrease in body weight increment, whereas low intensity laser therapy groups, showed significant reduction in paw volume and normal gain in body weight. The altered biochemical parameters(blood urea, serum creatinine, total proteins and acute phase proteins) in the arthritic rats were significantly brought back to near normal by the low intensity laser therapy. Therefore, low intensity laser acupuncture may be a useful treatment in the prevention and treatment of collagen-induced arthritis.

• The Journal of Korean Orthopaedic Ultrasound Society
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• v.4 no.2
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• pp.97-100
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• 2011

The iliopsoas bursa lies between the iliopsoas tendon and the anterior hip joint capsule and is difficult to detect by ultrasonography in normal setting. However, some of them communicated with the hip joint and the iliopsoas bursitis can be detected as a reflection of intra-articular pathology. We report two cases of acetabular labral tear accompanied with the iliopsoas bursitis detected by ultrasonography.

• Clinics in Shoulder and Elbow
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• v.8 no.1
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• pp.43-48
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• 2005

We report the case of a heterotopic ossification in the subscapularis muscle. A 30-year-old woman was diagnosed as a heterotopic ossification in the right subscapularis muscle. X-rays, a CT scan and a MRI showed bone-like lesions in the muscle. The location of the ossification was both inferior and anterior to the joint. The mass nearly bridged between the proximal humerus and the inferior portion of the coracoid process. Symptoms did not respond to rest, NSAIDs for 3 months and to stretching exercises treatment for 6 months. Excision and biopsy was performed through deltopectoral approach. Disodium Etidronate was administered during the postoperative period. She regained normal range of motion postoperatively and improved in the shoulder pain after performing strengthening exercises with Therabands. We think that a cause of limitation of the shoulder was impingement between the mass and the coracoid process, and that another cause was adhesion between the mass and the joint capsule. We conclude that excision and postoperative rehabilitation exercises are good methods for a heterotopic ossification in the subscapularis muscle for those that are nonresponsive to nonoperative treatments.

• Clinics in Shoulder and Elbow
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• v.21 no.4
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• pp.252-255
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• 2018

A 51-year-old male who is right-handed visited the outpatient for right fingers-drop. The patient's fingers, including thumb, were not extended on metacarpophalangeal joint. The active motion of the right wrist was available. The electromyography and nerve conduction velocity study were consistent with the posterior interosseous neuropathy. Further evaluation was done with the magnetic resonance imaging for finding the space-occupying lesion or any possible soft tissue lesion around the radial nerve pathway. On magnetic resonance imaging, the ganglion cyst, which was about 1.8 cm in diameter, was observed on the proximal part of the superficial layer of the supinator muscle (Arcade of Frohse). The surgical excision was done on the base of ganglion cyst at the base of stalk of cyst which looked to be connected with proximal radioulnar joint capsule. The palsy had completely resolved when the patient was observed on the outpatient department a month after the operation.

• Hip & pelvis
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• v.35 no.1
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• pp.15-23
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• 2023

Purpose: Hip microinstability is defined as hip pain with a snapping and/or blocking sensation accompanied by fine anatomical anomalies. Arthroscopic capsular plication has been proposed as a treatment modality for patients without major anatomic anomalies and after failure of properly administered conservative treatment. The purpose of this study was to determine the efficacy of this procedure and to evaluate potential predictors of poor outcome. Materials and Methods: A review of 26 capsular plications in 25 patients was conducted. The mean postoperative follow-up period for the remaining patients was 29 months. Analysis of data included demographic, radiological, and interventional data. Calculation of pre- and postoperative WOMAC (Western Ontario and McMaster Universities Osteoarthritis) index was performed. Pre- and postoperative sports activities and satisfaction were also documented. A P<0.05 was considered significant. Results: No major complications were identified in this series. The mean pre- and postoperative WOMAC scores were 62.6 and 24.2, respectively. The WOMAC index showed statistically significant postoperative improvement (P=0.0009). The mean satisfaction rate was 7.7/10. Four patients with persistent pain underwent a periacetabular osteotomy. A lateral center edge angle ≤21° was detected in all hips at presentation. We were not able to demonstrate any difference in postoperative evolution with regard to the presence of hip dysplasia (P>0.05), probably because the sample size was too small. Conclusion: Capsular plication can result in significant clinical and functional improvement in carefully selected cases of hip microinstability.