• Journal of Trauma and Injury
• /
• v.32 no.1
• /
• pp.47-50
• /
• 2019

Irreducible dislocation of the distal interphalangeal (DIP) joint is a rare traumatic condition commonly seen in sports injuries. Herein, we present a case with chronic dislocation of the DIP joint caused by high energy trauma accompanied by a fracture of the ipsilateral clavicle. The local deformity resulting from the dislocation can be trivial. Therefore, obtaining radiographs of all the interphalangeal joint injuries, regardless of the findings on inspection, is crucial for accurate diagnosis in the case of high energy trauma. The good functional improvement was obtained by open reduction and temporary wire fixation for 4 weeks.

• Journal of Yeungnam Medical Science
• /
• v.9 no.2
• /
• pp.302-311
• /
• 1992

Talus is a important structure of the ankle joint and its function is critical for ambulation and weight bearing. The talus fracture is rare, but the complications of fracture and dislocation are serious and resulting in avascular necrosis, osteoarthritis. So its treatment is carefully considered at initial status. Authors reviewed 11 cases of fracture and dislocation of the talus treated at Yeungnam university hospital from 1984 to 1991. The longest follow up was 8 years and shortest, 1 year. The results were as follows. 1. There were all males, the average age was 30 years old. 2. The most common cause was fall down(8 cases), and next traffic accident(2cases), sports injury(1 case). 3. According to Marti-Weber classification, 1 cases was type I, 1 in type II, 4 in type III and 5 in type IV. 4. The method of treatment were open reduction and internal fixation in 6 cases, the others were closed reduction in 5 cases. 5. Final results(by Hawkins grading system) were as follows, 3 cases were excellent, 4 cases were good, 1 case was fair and 3 cases were poor. 6. Complications were AVN in 2 cases, degenerative arthritis in 8 cases, malunion in 1 case. 7. The range of motion of the ankle joint was relatively preserved(74%), but in the subtalar joint it was decreased(43%).

• The Academic Congress of Korean Shoulder and Elbow Society
• /
• 2005.03a
• /
• pp.5-5
• /
• 2005

• The Academic Congress of Korean Shoulder and Elbow Society
• /
• 2004.03a
• /
• pp.42-42
• /
• 2004

• Clinics in Shoulder and Elbow
• /
• v.8 no.2
• /
• pp.181-186
• /
• 2005

An anterior dislocation of the elbow without a fracture of the olecranon is an extremely rare injury. This paper reports a 36-year-old male who stumbled and fell on his outstretched hand during a soccer game. The anteroposterior and lateral radiographs indicated a simple anterior dislocation of the elbow, which was reduced using a closed method. The elbow joint was stable in the range of motion, but the sensation of the two ulnar digits was still reduced. MRI was useful for the identification of the pathoanatomy. At the follow-up examination three months after the initial trauma, the hypesthesia has fully recovered and the patient regained the full range of the elbow and forearm motion without pain and instability. After 18 months, the patient had a normal elbow function, and could play various sports. If an anterior elbow dislocation is detected early, a closed reduction with careful pathoanatomical considerations would be successful.

• Clinics in Shoulder and Elbow
• /
• v.9 no.1
• /
• pp.42-49
• /
• 2006

Purpose: This study evaluated clinical results, and recommended treatment protocol of traumatic anterior shoulder dislocation in the patients older than 60 years of age. Materials and Methods: Thirty-eight patients with first traumatic anterior shoulder dislocation aged over 60 years were included. The average age was 69.4 (range, 60 to 87 years). There were 8 men (average age of 71.6) and 30 women (average age of 69). Most common cause of injuries was a fall on the outstretched hand. The additional injuries were evaluated using MRI or CT arthrogram in the patients with significant pain and weakness while movements after 2 weeks sling immobilization. Results: Fifteen patients (39%) had rotator cuff tears and 5 patients (14%) had greater tuberosity fractures. The sizes of rotator cuff tears were diverse; 2 partial tears, 1 small tear, 4 medium tears, 3 large tears and 5 massive tears. Among 5 massive cuff tears, 3 patients revealed cuff arthropathy after reduction. 4 patients (11%) had recurrent dislocation more than one time during 1 month after the first dislocation. Bankart lesions revealed in 5 patients and three of them had associated rotator cuff tears. 3 out of 5 patients with Bankart lesions, 13 out of 15 patients with rotator cuff tears and 3 patients with displaced greater tuberosity fracture had operations. Conclusion: The injury mechanism of shoulder dislocation in patients older than 60 years of age seems to have either anterior or posterior mechanism. The diagnosis and treatment should be approached 2 weeks after dislocation.

• Clinics in Shoulder and Elbow
• /
• v.12 no.2
• /
• pp.264-270
• /
• 2009

Purpose: The elbow joint is one of the most stable joints. Dislocation and fracture can occur in elbow joint most commonly next to shoulder joint. Various injuries can occur according to generated mechanism, age of patient and impact. Despite proper treatment, various complications can occur. Materials and Methods: We describe etiology and treatment of these complications after elbow trauma such as stiffness, instability and heterotopic ossification. Results and Conclusion: Malunion, nonunion and traumatic arthritis are addressed as a possible complication after fracture around elbow joint.

• Korean Journal of Materials Research
• /
• v.25 no.11
• /
• pp.630-635
• /
• 2015

The fatigue strength of a nickel-base superalloy was studied. Stress-controlled fatigue tests were carried out at $700^{\circ}C$ and 5 Hz using triangular wave forms. In this study, two kinds of testing procedures were adopted. One is the conventional tension-zero fatigue test(R = 0). The other was a procedure in which the maximum stress was held at 1000 MPa and the minimum stress was diverse from zero to 1000 MPa at 24 and $700^{\circ}C$. The results of the fatigue tests at $700^{\circ}C$ indicate that the fracture mechanism changed according to both the mean stress and the stress range. At a higher stress range, ${\gamma}^{\prime}$ precipitates are sheared by a/2<110> dislocation pairs coupled by APB. Therefore, in a large stress range, the deformation occurred by shearing of ${\gamma}^{\prime}$ by a/2<110> dislocations, which brought about crystallographic shear fracture. As the stress range was decreased, the fracture mode gradually changed from crystallographic shear fracture to gradual growth of fatigue cracks. At an intermediate stress range, as it became more difficult for a/2<110> dislocation pairs to shear ${\gamma}^{\prime}$ particles, cracks started to propagate in the matrix, avoiding the harder ${\gamma}^{\prime}$ particles. High mean stress induced creep deformation, that is, ${\gamma}^{\prime}$ particles were sheared by {111}<112> slip systems, which led to the formation of stacking faults in the precipitates. Thus, the change in fracture mechanism brought about the inversion of the S-N curves.

• Journal of Korean Foot and Ankle Society
• /
• v.19 no.4
• /
• pp.181-187
• /
• 2015

Purpose: The purpose of this study is to retrospectively analyze the clinical results of screws and Kirschner wire (K-wire) fixation in patients with fracture dislocation of Lisfranc joint and the consequence of screw breakage. Materials and Methods: Sixty patients underwent Lisfranc joint open reduction and removal of internal fixators from January 2007 to December 2011. Forty-nine cases (81.7%) underwent operations with screw alone, and 11 cases (18.3%) underwent operations with both screws and K-wires. Type of internal fixators, duration of internal fixator removal, breakage of internal fixators and satisfaction with reduction were investigated. Additionally, American Orthopaedic Foot and Ankle Society (AOFAS) midfoot scales were analyzed. Results: The internal fixator was broken in 5 cases (8.3%). The average duration of instrument removal was 154 days in the non-broken screw group and 268.6 days in the broken screw group (p<0.05). The average AOFAS midfoot scale was 77.4 in the non-broken screw group and 74.2 in the broken screw group. The most commonly damaged portion was the first tarsometatarsal (Lisfranc) joint. Conclusion: Treatment with screws and K-wires was effective in patients with fracture dislocation of Lisfranc joint. The appropriate time for screw removal should be considered.

• Journal of the Korean Arthroscopy Society
• /
• v.5 no.2
• /
• pp.104-110
• /
• 2001

Purpose : To analyze the patterns of osteochondral fracture associated with patellar dislocation and to assess the results of arthroscopic treatment. Materials and Methods : Fourteen patients were treated from March, 1989 to April, 1998 for patellar dislocations with osteochondral fracture. The average follow-up was 32 months. All were treated by arthroscopic procedures. The location and size of the fracture fragments were recorded. To assess the functional results, we used Larsen & Lauridson's score system. Results : Osteochondral fractures were found 8 cases in medial side of patella, 1 case in lateral side of patella, 5 cases in lateral margin of lateral femoral condyle. The range of maximal diameter of osteochondral fragment was from 1cm to 4.2cm. Treatments include fragment excision only in 6 cases, excision and medial retinacular repair in 2 cases, excision and medial retinacular repair and lateral retinacular release in 3 cases, and internal fixation only in 3 cases. The functional results were excellent in 5 cases$(36\%)$. good in 6 cases$(43\%)$, fair in 1 case$(7\%)$ and poor in 2 cases$(14\%)$. Conclusion : In osteochondral fractures associated with patellar dislocation, arthroscopic treatment is useful to diagnose precisely, to determine proper treatment modality, and to minimize the complications.