The pseudoaneurysm of the popliteal artery following an arthroscopic posterior cruciate ligament reconstruction is rare. We present a case of the delayed pseudoaneurysm of the popliteal artery after arthroscopic posterior cruciate ligament reconstruction. Open excision of the pseudoaneurysm and pin-point repair were done. Retrospectively reviewing the case, we found that the relation of the popliteal artery and posterior cruciate ligament on preoperative magnetic resonance images can predict the complication of pseudoaneurysm of the popliteal artery.
Aneurysm, False ; Magnetic Resonance Spectroscopy ; Popliteal Artery ; Posterior Cruciate Ligament ; Retrospective Studies

Throwing induced humeral shaft fracture can be occurred by repeated torsional load or sudden torsional load. We report a case of a 33-year-old man with throwing-induced non-stress humeral shaft fracture.
Adult ; Humans

Calcific tendinitis is most common seen within the rotator cuff of the shoulder, although it may develop around the hip, wrist, elbow, knee, forefoot, and neck. However, there has been no report in the medical literature regarding calcific tendinitis of the common extensor tendon. We present a case of a 26-year-old woman who had calcific tendinitis of the common extensor tendon. Intraoperatively, partial rupture and calcific deposit at the insertion of the common extensor tendon were seen. We were removed calcific deposit and ruptured tissue of common extensor tendon, and then ruptured common extensor tendon was sutured. The patient showed excellent result two years postoperatively with return to range in a degree of activity levels.
Adult ; Elbow ; Female ; Hip ; Humans ; Knee ; Neck ; Rotator Cuff ; Rupture ; Shoulder ; Tendinopathy ; Tendons ; Wrist

To evaluate the effects on the restoration of proprioception, we compared joint position sense (JPS) after meniscal allograft transplantation. Nine patients who underwent meniscal allograft transplantation between March 2008 and January 2010 were evaluated at preoperation and 6 months post-operation. International Knee Documentation Committee (IKDC) subjective score and Lysholm score were evaluated. The peak torque of the isokinetic flexor and extensor strength test was performed using Biodex system III. Passive JPS was assessed to evaluate proprioceptive function. In the results, IKDC subjective score and Lysholm score were improved (p=0.05). The flexor and extensor power decreased, however there was no statistically significant difference. In the assessment of JPS, there was improvement from 6.56degrees and 4.11degrees to 4.89degrees and 1.89degrees, however, this was not statistically significant. Although, proprioception was improved in JPS at 6 months after meniscus transplantation, it did not show statistic significance. Therefore, future studies using combined methods will be needed to evaluate proprioceptive function after meniscal allograft transplantation.
Humans ; Joints ; Knee ; Proprioception ; Torque ; Transplantation, Homologous ; Transplants

The purpose of this study was to do the surveillance study of sports injuries which were suffered to National players of South Korea Team during the summer Asian Games 2010 in Guangzhou. All medical staffs of Korea Delegation were asked to report all sports injuries newly incurred during the Games on injury report form, and the physicians made clinical diagnoses of the injuries. Total 725 injuries (430 athletes) were reported, and 288 injuries (209 athletes) were newly incurred: 68 injuries (58 athletes) were recurrent with previous history, resulting in total incidence rate: 45.5 injuries/1000 athlete exposures (AE) (95% confidence interval [CI]: 40.1-50.6 injuries/1000 AE) and incidence proportion: 26% (95% CI: 23-29). The new injury was highest in athletics (n=37, 12.8%), hockey (n=26, 9.0%), and basketball (n=23, 8.0%). While 162 injuries (56.2%) were incurred during practice, 126 injuries (43.8%) were incurred in competition. The most frequent diagnoses were lateral ankle ligament sprain (n=28, 9.7%, 95% CI: 6.3-13.1), calf muscle cramp (n=23, 95% CI: 4.9-11.1), and hamstring strain (n=22, 95% CI: 4.6-10.7). The relapsed injury was highest in athletics (n=16, 23.5%), basketball (n=6, 8.8%), and wrestling (n=5, 7.4%). While 50 injuries (73.5%) were recurred during practice, 18 injuries (26.5%) were recurred in competition. The most frequent diagnoses of relapsed injury were calf muscle cramp (n=11, 16.2%, 95% CI: 7.4-25.0), low back strain (n=6, 8.8%, 95% CI: 2.1-15.6), and hamstring strain (n=6, 8.8%, 95% CI: 2.1-15.6). Our data indicated incidence rates, incidence proportions, characteristics and frequent diagnoses of acute and recurrent sports injuries during the games, therefore these results could provide relevant information for the sports injury prevention at elite level.
Animals ; Ankle ; Asian Continental Ancestry Group ; Athletes ; Athletic Injuries ; Basketball ; Hockey ; Humans ; Incidence ; Korea ; Ligaments ; Medical Staff ; Muscle Cramp ; Republic of Korea ; Sports ; Sprains and Strains ; Wrestling

The purpose of this study was to evaluate the change in three-dimensional (3D) ankle joint kinematics on the arch pad. Ten male subjects performed running trials on treadmill, and ten motion capture system were used to record a position data of the reflected markers on the lower limb. Two conditions (no support and support: arch pad) were compared with the joint angles which were analyzed by the Cardan method. As a result, ankle joint eversion angles with support shoe (-6.5degrees+/-2.5degrees) were significantly lower than that with no support shoe (-10.2degrees+/-3.2degrees) (p<0.01). Nevertheless, differences in ankle joint dorsiflexion and abduction angles were not significantly different between support (20.1degrees+/-3.1degrees, -2.5degrees+/-1.9degrees) and no support shoe (20.4degrees+/-3.4degrees, -2.4degrees+/-2.1degrees) (p>0.25, p>0.11). Shoes with medial arch support or using special shoe inserts may help correct one's running form by reducing pronation and may reduce risk of running injury.
Animals ; Ankle ; Ankle Joint ; Biomechanics ; Humans ; Joints ; Lower Extremity ; Male ; Pronation ; Running ; Shoes

This study evaluated the effects of saddle height on the muscle activity and oxygen uptake during bicycling. The subjects were 20 young adult volunteers. Muscle activity and oxygen uptake were measured with the two saddle heights (maximum knee extension of 180degrees and 120degrees) and at two power outputs (70 and 100 watts, respectively.) The pedaling rate was 40 rpm. The exercise time was 1 minute and the resting time between each condition was 3 minutes. The raw electromyogram activity was measured for 1 minute and was converted to a root mean square value. Oxygen uptake was measured during exercise using the mixing chamber mode. The activities of two flexors (the medial hamstring and medial head of gastrocnemius) increased at the high saddle height and the activities of four extensors (rectus femoris, vastus medialis, vastus lateralis, and tibialis anterior) increased at the low saddle height. The oxygen uptake at the low saddle height was significantly higher than that at the high saddle height. The oxygen uptake positively correlated with the muscle activities of the knee extensors. The muscle activity and oxygen uptake were significantly affected by the postures (saddle heights) in cycle ergometer. The postures should be considered in the exercise test and prescription.
Bicycling ; Exercise Test ; Head ; Humans ; Knee ; Muscles ; Oxygen ; Posture ; Prescriptions ; Quadriceps Muscle ; Young Adult

To investigate effect of fatigue and anticipation on lower extremity joint load during a side-cutting maneuver in female collegiate soccer players, thirteen female collegiate soccer players whose right leg dominant participated in this study. Three dimensional motion analysis system and a force plate were used to record the 45degrees side cutting maneuver. In the first, anticipated and unanticipated cutting were measured in the pre-fatigue condition. Second, participations performed the fatigue protocol by the squat exercise with weight lifting. And then, two different type of cutting task were measured again after fatigue condition. The cutting direction let known before start their running in case of the anticipated cutting, the random signal of cutting direction were presented in the unanticipated condition. In the results, the most influential variable was anticipation factor. Lower limb angles represented significantly flexed posture during unanticipated cutting than anticipated condition. Maximum knee flexion moment represented significantly higher in unanticipated cutting than anticipated cutting. Adduction and internal rotation moment of lower limb joint decreased in unanticipated cutting. Fatigue factor was influenced by the initial contact angles of the ankle joint. Lower limb angles at the initial ground contact indicated more erect posture in post-fatigue condition. The unanticipation factor had more effect on locomotors ability of lower limb in this study. Therefore, the sensory-motor training to adapt to unanticipated situation should be considered for the injury prevention training program.
Ankle Joint ; Anterior Cruciate Ligament ; Fatigue ; Female ; Humans ; Joints ; Knee ; Leg ; Linear Energy Transfer ; Lower Extremity ; Posture ; Running ; Soccer ; Weight Lifting

The purpose of this study was to know utility of percutaneous cannulated screw fixation of fifth proximal metatarsal stress fractures in athletes by assessment of radiological and clinical outcome. This study examined clinical and radiological union time of eleven cases of percutaneous screw fixation, which used the 4.0 mm cannulated screw, of fifth proximal metatarsal stress fracture in athletes. Type I of Torg classification is 7 cases, type II is 3 cases and type III is 1 case. All the cases showed fracture union, and all the patients resumed their athletics at the final follow-up. None of the cases complained of refracture or pain around where they had surgery, and visual analogue scale of pain, and American Orthopedic Foot and Ankle Society score was 0.73 and 93.4. The results of the study confirm that percutaneous screw fixation, which used the cannulated screw, of fifth proximal metatarsal stress fracture would help athletes resume their athletics in early stages.
Animals ; Ankle ; Athletes ; Follow-Up Studies ; Foot ; Fractures, Stress ; Humans ; Metatarsal Bones ; Orthopedics ; Sports

The purpose of this study was to evaluate the clinical results and recovery of sports activity in patients who received meniscal allograft transplantation. From December 1999 to May 2009, we selected 36 cases out of 38 cases who received meniscal transplantation using fresh frozen allograft. The mean age was 33.8 years (range: 17-50 years) and the mean follow up was 68.8 months (range: 12-142 months). Clinical results were evaluated with knee assessment scoring system (KASS), Lysholm knee score and International knee Documentation Committee. The information of quadriceps and hamstrings strength recovery was obtained using Tegner activity scale, Tegner activity score and Biodex system II (Biodex, USA), and it was used to evaluate the recovery of sports activity. The average KASS score was increased from 61.7 preoperatively to 83.8 postoperatively. The average Lysholm score was increased from 77.7 preoperatively to 87.7 postoperatively. Also, Tegner activity scale, Tegner activity score and the recovery of quadriceps and hamstrings increased at 1year after surgery. In knee joint position sense, the proprioception increased compared to preoperational count. We propose the meniscal allograft transplantation is one of a proper treatment after subtotal or total meniscectomy, which can significantly relieve pain and improve function of the knee joint.
Follow-Up Studies ; Humans ; Knee ; Knee Joint ; Proprioception ; Sports ; Transplantation, Homologous ; Transplants