Ossification of the Coracoacromial Ligament in Subacromial Impingement Syndrome: A Case Report

Here, a case of a 59-year-old man with rotator cuff tear and impingement syndrome caused by an ossified coracoacromial ligament is presented. Ossification of the coracoacromial ligaments can occur because of degenerative changes due to trauma or repeated stress, which can lead to impingement syndrome. Therefore, when coracoacromial ligament ossification is present, rotator cuff damage due to impingement syndrome should be considered. Here, we conducted arthroscopic subacromial decompression, removal of the ossified coracoacromial ligament, and supraspinatus and subscapularis tendon repairs. We achieved satisfactory surgical outcomes without relapse; therefore, we report this case with a literature review.

Ossification of the Coracoacromial Ligament in Subacromial Impingement Syndrome: A Case Report

Here, a case of a 59-year-old man with rotator cuff tear and impingement syndrome caused by an ossified coracoacromial ligament is presented. Ossification of the coracoacromial ligaments can occur because of degenerative changes due to trauma or repeated stress, which can lead to impingement syndrome. Therefore, when coracoacromial ligament ossification is present, rotator cuff damage due to impingement syndrome should be considered. Here, we conducted arthroscopic subacromial decompression, removal of the ossified coracoacromial ligament, and supraspinatus and subscapularis tendon repairs. We achieved satisfactory surgical outcomes without relapse; therefore, we report this case with a literature review.

Breakage of the Femoral Cross-Pin with Impending Rupture of the Popliteal Vessels after Anterior Cruciate Ligament Reconstruction / 대한정형외과학회잡지

Breakage of the femoral cross-pin with impending rupture of the popliteal vessels is a rare complication for femoral tunneling in anterior cruciate ligament (ACL) reconstruction. The authors experienced a case of impending rupture of the popliteal vessels following breakage of the cross-pin 16 days after primary ACL reconstruction. Impending rupture of the popliteal vessels was detected with ultrasonography following breakage of the cross-pins which caused popliteal discomfort and irritation. After removal of the broken cross-pins, previous ACL graft and interference screw with subsequent re-reconstruction of the ACL using a new allograft and interference screw, the patient showed satisfactory results and resolution of symptoms. Therefore we report on this case with a review of literature.

Atypically Large Calcific Tendinitis of the Shoulder: A Case Report

Calcific tendinitis of the shoulder joint is common disease causing acute pain, mainly involving the supraspinatus or infraspinatus muscle, and less frequently the teres minor or subscapularis muscle. This study reports on the satisfactory arthroscopic removal of calcium deposits as well as infraspinatus and supraspinatus muscle repair without relapse via minimal incision using suture anchors. This was a case of atypically extensive calcific tendinitis involving the infraspinatus muscle, with a bursal side partial rupture of the supraspinatus muscle in a 61-year-old female whose chief complaint was chronic pain of the right shoulder exacerbated by limited movement.

Treatment of Avulsion Fracture of Proximal Rectus Femoris with Suture Anchor / 대한스포츠의학회지

Avulsion injuries of the anterior inferior iliac spine, which is the origin of the rectus femoris muscle, are sometimes reported in children and adolescents, but acute avulsion injuries with complete rupture of the rectus femoris are very rare in adults. We treated a case of avulsion fracture of the anterior inferior iliac spine with suture anchors in an adult and achieved a favorable outcome. Thus, we report the case with a review of literature.

Total Knee Arthroplasty for Severe Flexion Contracture in Rheumatoid Arthritis Knees

Flexion contracture deformities, as well as severe varus and valgus deformities of the knee joint, accompany osteoarthritis or rheumatoid arthritis (RA). In particular, severe flexion contracture deformity of the knee joint is often found in patients with RA, which renders them nonambulatory. This report describes a 26-year-old female patient diagnosed with RA 10 years ago. She had chronic joint pain, severe flexion contracture, valgus deformity in both knees, and limited range of motion in both knees and became nonambulatory. She underwent a total knee arthroplasty (TKA) and serial casting and physical therapy to restore stable joint movement and correct knee joint deformity. Her pain was successfully relieved, and she was able to walk after surgery. Here, we report the excellent results of TKA in this RA patient with severe flexion contracture of both knees.

Atypically Large Calcific Tendinitis of the Shoulder: A Case Report

Calcific tendinitis of the shoulder joint is common disease causing acute pain, mainly involving the supraspinatus or infraspinatus muscle, and less frequently the teres minor or subscapularis muscle. This study reports on the satisfactory arthroscopic removal of calcium deposits as well as infraspinatus and supraspinatus muscle repair without relapse via minimal incision using suture anchors. This was a case of atypically extensive calcific tendinitis involving the infraspinatus muscle, with a bursal side partial rupture of the supraspinatus muscle in a 61-year-old female whose chief complaint was chronic pain of the right shoulder exacerbated by limited movement.

The Influence of Stroke on Postoperative Prognosis of Femoral Intertrochanteric Fractures / 대한정형외과학회잡지

PURPOSE: The purpose of this study was to compare the general characteristics that affect the prognosis and evaluate the influence of stroke on one-year postoperative mortality and recovery of ambulatory status in elderly patients over 65 years old with femoral intertrochanteric fracture. MATERIALS AND METHODS: This study included 80 patients who were followed-up for one year after proximal femoral nailing for femur intertrochanteric fracture between January 2008 and December 2013. We analyzed the relationship among the one-year postoperative mortality, recovery of ambulatory status and the associated factors (age, gender, associated underlying disease, American Society of Anesthesiologists [ASA] grade, comminution of the fracture, dementia). RESULTS: The one-year postoperative mortality rate in all patients and patients with stroke was 28.8% and 42.9%, respectively. The one-year postoperative mortality rate was significantly higher in patients with stroke, high ASA grade, and unstable fracture. Decrease of the one-year postoperative ambulatory status was 50.9% in all patients and was significantly associated with grade III or IV ASA rating. No significant relationships were observed between the one-year postoperative recovery of ambulatory status and stroke. CONCLUSION: Stroke, ASA grade, and unstable fracture were prognostic factors associated with one-year postoperative mortality following intertrochanteric fracture. ASA rating was the only prognostic factor affecting one-year postoperative recovery of ambulatory status.

An Extradural En-Plaque Meningioma Involving Thoracic Spine / 대한정형외과학회잡지

Reports of extradural spinal meningioma are rare, and differentiation from a metastatic lesion is important. We treated a case of thoracic extradural meningioma with surgical excision and obtained a favorable outcome without recurrence during one-year follow-up. Thus, we report on a case with review of the literature.

Short-Term Results of Total Knee Arthroplasty with Anterior-Posterior Glide LCS Mobile-Bearing System

PURPOSE: To evaluate the clinical and radiological results of total knee arthroplasty (TKA) using the anterior-posterior glide (APG) low contact stress (LCS) mobile-bearing system. MATERIALS AND METHODS: We evaluated 130 knees in 117 patients who had undergone TKA with APG LCS mobile-bearing system between September 2005 and July 2007 and could be followed over 5 years. The mean follow-up period was 68 months. The clinical and radiological results were evaluated using the American Knee Society Scoring System, Oxford knee score and the American Knee Society Roentgenographic Evaluation and Scoring System. And we analyzed short-term postoperative complications. RESULTS: The average range of motion of the knee joint was 107.9degrees (range, 70degrees to 135degrees) preoperatively and 125.2degrees (range, 90degrees to 135degrees) at the last follow-up. The average knee and functional scores were improved from 39.1 and 42.0 to 71.2 and 75.6, respectively, between the preoperative and last follow-up evaluation. The Oxford knee score was decreased from 42.9 preoperatively to 23.1 at the last follow-up. The femoro-tibial angle (anatomical axis) changed from 10.1degrees varus preoperatively to 3.3degrees valgus at the last follow-up. Radiolucency was observed in 14% of all cases. There were 1 case of traumatic dislocation of the polyethylene liner, 1 case of aseptic loosening and 6 cases of posterior instability because of posterior cruciate ligament (PCL) insufficiency. CONCLUSIONS: TKA with APG LCS mobile-bearing system demonstrated relatively good short-term clinical and radiological results. However, further considerations for posterior instability associated with PCL insufficiency are needed.

A Vessel Injury by Trocar of Closed Suction Drainage after Hip Hemiarthroplasty: A Case Report / 대한고관절학회지

Vascular complication of hip arthroplasty is relatively rare, and usually involves iatrogenic injury or thrombus formation of main vessels. No case of vascular injury associated with closed suction drainage has been reported. The current report describes an injury of a branch from the lateral circumflex femoral artery caused by a trocar of closed suction drainage in a 72-year-old man who had been treated with bipolar hemiarthroplasty because of a femoral neck fracture. We report on this case with a review of the literature in order to avoid similar complications.

Adenomyoepithelioma Located Over the Tibial Tuberosity

Adenomyoepithelioma is a rarely occurring tumor and its generation in the limbs is extremely rare. We report a case of an adenomyoepithelioma over the proximal tibial tuberosity that was treated without any complications after an excisional biopsy with a literature review.

Injury of the Superficial Femoral Artery Secondary to an Unstable Intertrochanteric Fracture: A Case Report / 대한고관절학회지

Injury of the femoral artery with a femoral intertrochanteric fracture is rare, and usually occurs on the deep femoral artery during surgery. We experienced a case of preoperative injury of the superficial femoral artery by a lesser trochanteric fragment. We repaired the femoral artery through an anterior approach before internal fixation.

Effect of Hydroxyapatite on Bone Integration in a Rabbit Tibial Defect Model

BACKGROUND: The aim of the present study was to prepare hydroxyapatite (HA) and then characterize its effect on bone integration in a rabbit tibial defect model. The bone formation with different designs of HA was compared and the bony integration of several graft materials was investigated qualitatively by radiologic and histologic study. METHODS: Ten rabbits were included in this study; two holes were drilled bilaterally across the near cortex and the four holes in each rabbit were divided into four treatment groups (HAP, hydroxyapatite powder; HAC, hydroxyapatite cylinder; HA/TCP, hydroxyapatite/tri-calcium phosphate cylinder, and titanium cylinder). The volume of bone ingrowth and the change of bone mineral density were statistically calculated by computed tomography five times for each treatment group at 0, 2, 4, 6, and 8 weeks after grafting. Histologic analysis was performed at 8 weeks after grafting. RESULTS: The HAP group showed the most pronounced effect on the bone ingrowth surface area, which seen at 4, 6, and 8 weeks after graft (p 0.05). On histological examination, the HAP group revealed well-recovered cortical bone, but the bone was irregularly thickened and haphazardly admixed with powder. The HAC group showed similar histological features to those of the HA/TCP group; the cortical surface of the newly developed bone was smooth and the bone matrix on the surface of the cylinder was regularly arranged. CONCLUSIONS: We concluded that both the hydroxyapatite powder and cylinder models investigated in our study may be suitable as a bone substitute in the rabbit tibial defect model, but their characteristic properties are quite different. In contrast to hydroxyapatite powder, which showed better results for the bone ingrowth surface, the hydroxyapatite cylinder showed better results for the sustained morphology.

Anterior Knee Pain after Intramedullary Tibial Nailing / 대한정형외과학회잡지

PURPOSE: To document the incidence and analyze the causes of anterior knee pain following closed intramedullary nailing for tibial fractures. MATERIALS AND METHODS: Between January 2005 and February 2007, 50 tibial fractures (48 patients) were treated using locked intramedullary nails. We examined the relationship between postoperative anterior knee pain and age, gender distribution, mechanism of injury, cause and type of fracture, method of patellar tendon incision, and position of the nails on radiography. Anterior knee pain was assessed using a visual analogue scale (VAS). Pearson chi-square test was used to assess the incidence of knee pain. RESULTS: At a mean follow-up period of 16 months (range 13-30 months), 23 cases (46%) had developed anterior knee pain. Knee pain was more common in woman (p=0.000), but there was no statistically significant difference with regard to age, cause or type of fracture, reaming or incision technique. If the knee apex distance was below -30 mm on radiological analysis, there was no statistically significant increase in postoperative knee pain (p=0.000). Nail removal resolved or improved the symptoms in 77% of patients with anterior knee pain. CONCLUSION: Based on these data, nail prominence correlated with increased knee pain. We believe surgeons can decrease the severity of knee pain after tibial nailing by burying the tip of the nail as reflected on lateral radiographs.

Arthroscopic Anterior Cruciate Ligament Repair

PURPOSE: To evaluate the efficacy of arthrorscopic ACL repair on femoral side using suture technique. MATERIALS AND METHODS: We performed arthroscopic ACL repair suture technique on femoral side and evaluate the results using the functional grading system of Lysholm and physical examination in 15 cases between July, 1997 and June, 2004 that were able to be followed up for more than 24 months. The mean age was 32.1 years old, the follow up period were 58.7 month. RESULTS: The postoperative Lysholm knee score increased from preoperative mean 17 to postoperative mean 93 by an average of 76 points. Postoperative Excellent group over 90 points were 6 cases(40%), Good group over 75 points were 8 cases(53%), Fair group over 51 points was 1 case(7%). On anterior drawer test, 3 cases showed anterior insta- bility between 0 and 2mm and 2 cases between 3 and 5mm. But other 10 cases did not show anterior instability on anterior drawer test. On stress lateral radiographic evaluation, the mean anterior translation of tibia was 2(0~5)mm. CONCLUSION: We concluded that arthroscopic ACL repair with suture technique is one of the most reliable and effective method to recover the instability and full ROM enabling early rehabilitation.

Midterm Results of Treatment with a Retrograde Nail for Periprosthetic Fractures of the Femur Following Total Knee Arthroplasty

PURPOSE: To analyze the midterm results of the treatment with a retrograde nail for periprosthetic fractures of the femur following total knee arthroplasty. MATERIALS AND METHODS: Between Jan 1998 and Jan 2004, 11 cases in 11 patients were treated for the periprosthetic fractures following total knee arthroplasty. The mean follow-up was 42.0 (30~98) months and the mean age was 66.0 (57~79) years old. 2 were males and 9 patients were females. In all cases, retrograde nailing was done for the periprosthetic fractures. Postoperative range of motion, HSS knee rating score, femorotibial angle, the time required for union, complications were evaluated. RESULTS: Postoperative range of motion was 103.6° degrees on an average, HSS knee rating score was 83.5 points on an average at the last follow up. The mean angulation on radiograph was valgus 6.3°. The mean time required for union was 4 months. One had a newly fracture line at proximal part of supracondylar fracture, but there was no significant in clinical course. There was no prostheses required revision. CONCLUSION: It appears that retrograde nail is a reliable surgical technique for periprosthetic fractures of the femur following total knee arthroplasty with low complication rate. The midterm results in our study showed that none of the prostheses required revision.

Arthroscopic Internal Fixation of Displaced Tibial EminenceFracture Using Cannulated Screw / 대한정형외과학회잡지

PURPOSE: This study examined the outcome of arthroscopic internal fixation for types II and III tibial eminence fractures in children using a cannulated screw. MATERIALS AND METHODS: A series of 10 cases of displaced fractures of tibial eminence of the tibia that were treated with an arthroscopic cannulated screw fixation from February, 1997 to October, 2005 were examined. Four patients had a type II and six patients had a type III tibial eminence fracture according to the Meyer and McKeever's classification. All the patients were reviewed radiographically and clinically for bone union, instability and the range of motion after an average follow-up of 22.4 months (range, 12 to 81 months). RESULTS: There were no cases of nonunion. The clinical examination showed that, all the patients with types II and III lesions had a negative Lachman test, and a full range of motion with the exception of one patient with a type III fracture. The average Lysholm functional score was 96.3 (mim 92.6-max 99.0) for all types II and III lesions. CONCLUSION: Arthroscopic internal fixation with a cannulated screw for types II and III avulsion fractures of the tibial eminence in children can provide a satisfactory outcome through firm fixation of the fragment and an early start of the range of motion.

Results of Operative Treatment of Distal Femoral Fracture

PURPOSE: To evaluate the result of comparative study about the cases in the fracture of the distal femur treated with plate and screw, dynamic condylar screw, blade plate, retrograde intramedullary nail and external fixator. MATERIALS AND METHODS: The AO classification system was used. 84 cases who were preformed operation during the period from March 1996 to May 2002, were included in this study. The mean duration of follow-up was 25 months. According to Sachatzker criteria, we classified the following results to excellent, good, fair and poor. RESULTS: Type A were excellent or good result when treated with plate and screw, dynamic condylar screw and retrograde intramedullary nail. Type B were excellent or good result when treated with cannulated screw. Type C were excellent or good result when treated with plate and screw and blade plate. CONCLUSION: We conclude that the most important thing in operation is firmly internal fixation and to obtain this, accurately anatomical reduction and the choice of suitable instrument for the type of the fracture are needed. cannulated screw. Type C were excellent or good result when treated with plate and screw and blade plate.

Ad-TRAIL Induces Apoptosis in Chondrocytes in Vitro and Neutralizing Antibody to TRAIL Prevents The Induction of Apoptosis in Vitro and in Vivo / 대한해부학회지

We undertook this study to investigate whether tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)implicates in the pathogenesis of osteoarthritis (OA). Expression of TRAIL, and death and decoy receptors was examined on the primary cultured chondrocytes and the cartilage obtained from experimentally-induced OA rat model by immunohistochemistry. In vitro and in vivo blocking experiments with anti-TRAIL neutralizing antibody were conducted, and the prevention of cell death was determined by TUNEL assay. Ad-TRAIL infection induced expression of TRAIL and increased expression of death receptor DR4, and decreased expression of DR5 and DcR1 in primary cultured rat chondrocytes. Ad-TRAIL, at 10 and 100 MOI doses, decreased viability of chondrocytes on 4 days after infection. The cartilage obtained from chemically induced OA rat model showed the increased expression of TRAIL and DR4, and the decreased expression of DR5 and DcR1. Whereas surgically induced OA cartilage in vivo showed the increased expression of TRAIL, and DR4 &5 and the decreased expression of DcR1, compared to the control cartilage. In vitro blocking experiment prevented partially Ad-TRAIL induced death of chondrocytes. Furthermore, in vivo blocking experiment also partially prevented apoptosis in two in vivo OA models. In conclusion, TRAIL-induced chondrocyte apoptosis may play a role in pathogenesis of osteoarthritis.