Complete Rupture of the Proximal Hamstring / 대한스포츠의학회지

While a sprain of the hamstring muscle is relatively common in athletes or those who participate in physically active sports, a complete rupture of the proximal hamstring is relatively rare. A rupture of the long head of the biceps femoris without rupture of the semimembranosus and semitendinosus muscles has rarely been reported. In this study, we saw relatively favorable outcomes after reattachment with a suture anchor at the ischial tuberosity in two patients who had a rupture of the long head of the biceps femoris.

A Case of Gait Disturbance due to Chronic Bilateral Subdural Hematoma Mimicking Cervical Spondylotic Myelopathy / 대한정형외과학회잡지

Cervical spondylotic myelopathy (CSM) is a spinal cord dysfunction involving compression of the vascular and neural structures due to bony spurring or soft tissue hypertrophy in patients with degenerative cervical disorders. It presents initially as subtle gait disturbance with gradual deterioration. An elderly patient presenting with gait disturbance due to spasticity and motor weakness of both lower extremities without mental change can be easily misdiagnosed as CSM. We report on a case of gait disturbance due to chronic bilateral subdural hematoma mimicking CSM.

Primary Aneurysmal Bone Cyst in the Iliac Bone: A Case Report / 대한고관절학회지

Symptomatic aneurysmal bone cysts with expansible lesions in the pelvis are rare in children. The management of an aggressive vascular lesion in a female child is challenging. The standard treatment for aneurysmal bone cysts is accompanied by a high risk of local recurrence. A 12-year-old female presented with a history of pelvic pain for 5 months. Plain radiographs and magnetic resonance imaging showed a very large expansile lytic lesion arising from the right iliac bone. Intralesional curettage, electric cauterization, chemical sclerotherapy and allogeneic bone graft were performed through the window of the iliac crest. At a follow-up consultation 3.5 years post-surgery, the child had painless full-range movement in the hip joint with no recurrence. Although many treatment options are described, our patient was treated successfully using curettage and allogeneic bone graft without recurrence.

Milwaukee Shoulder Syndrome in a Eldery Female Patient: A Case Report / 대한정형외과연구학회지

Milwaukee shoulder syndrome is a rare clinical entity that is a rapid destructive shoulder arthropathy associated with deposition of calcium hydroxyapatite crystals. It mainly affects elderly women. It is characterized by the presence of large amount of noninflammatory synovial fluid containing calcium hydroxyapatite crystals, a complete tear of the rotator cuff and progressive degenerative changes at the humeral head, leading to almost complete functional impairment. We present a case of a 65-year-old woman suffered by Milwaukee shoulder syndrome with literature view.

The Antero-medial Cortex Overlapped Reduction of Unstable Intertrochanteric Fractures / 대한고관절학회지

PURPOSE: The purpose of this article is to evaluate the result of treatment of unstable intertrochanteric fractures by lateralization of distal fragment and antero-medial cortex contact of the distal shaft piece. MATERIALS AND METHODS: We conducted an analysis of 20 cases of unstable intertrochanteric fractures treated using a gamma-3 nail from August 2011 to August 2012 and followed up for more than one year. Using postoperative and last follow-up radiographs, we measured NSA, TAD, Cleveland index, sliding length of the lag screw, and union time. Adequacy of reduction was assessed by a modification in the criteria of Baumgaertner and classified as good, acceptable, or poor. RESULTS: The mean NSA was 140degrees postoperative and 135degrees at last follow-up. The mean TAD was 11.3 mm. The position of the lag screw was in center-center in 12 cases, center-inferior in eight cases. The mean distance of lag screw sliding was 5.5 mm at last follow-up. The mean union time was 3.7 months. The state of reduction postoperatively was good in 15 cases, and acceptable in five cases. There was no failure of reduction, lag screw cut-out, or other complications at last follow-up. CONCLUSION: The reduction method for lateralization of distal fragment and antero-medial cortex contact of the distal shaft piece in an unstable intertrochanteric fracture is very useful for prevention of collapse of the fracture site, lag screw cut-out, and mechanical failure.

Asymptomatic Pulmonary Embolus Following Percutaneous Kyphoplasty: A Case Report / 대한골다공증학회지

Percutaneous vertebroplasty is a relatively recent procedure in the treatment of osteoporotic vertebral compression fractures. Bone cement embolism is a severe and potentially life-threatening complication of percutaneous vertebroplasty with cement. The risk for cement pulmonary embolism ranges between 3.5 and 23% for osteoporotic fractures. Bone cement leakage may be usually more frequent with vertebroplasty than with kyphoplasty. We experienced a 69-year-old female patient of an asymptomatic pulmonary embolus (length 8 cm) after kyphoplasty for an osteoporotic vertebral compression fracture

Analysis and Measurement of the Lumbar Spinal Canal Dimension using Magnetic Resonance Imaging / 대한정형외과학회잡지

PURPOSE: It is very difficult to measure the spinal canal dimension in elderly patients because of disc degeneration and facet joint hypertrophy. The purpose of this study is to determine reference values of the spinal canal dimension in a population of normal Korea subjects and to evaluate other measurement methods of the spinal canal dimension that correlate to normal spinal canal dimensions determined using Magnetic Resonance Imaging (MRI). MATERIALS AND METHODS: We studied 100 patients who had mild symptoms and had normal MRI findings from 2475 outpatients that had undergone lumbar MRI from November 2002 to May 2004. The dimension of the spinal canal and dural sac was measured at the center of intervertebral discs L3/4, L4/5 and L5/S1. The dimension of the spinal canal and vertebral body was measured and was compared at the transverse plane perpendicular to the spinal canal that transected L4, L5 and the S1 pedicle. RESULTS: For the sequence of L3/4, L4/5 and L5/S1, the mean spinal canal dimensions were 249.38+/-38.30 mm2, 253.04+/-48.62 mm2 and 288.46+/-57.62 mm2, respectively. For the sequence of L4, L5 and S1, the mean spinal canal dimensions were 279.78+/-42.36 mm2, 301.50+/-54.26 mm2 and 355.10+/-60.65 mm2, respectively. The correlation coefficient was high at 0.913 for the L3/4 and L4 interpedicular transverse plane. The correlation coefficient for L4/5 and L5 was 0.905, and the correlation coefficient for L5/S1 and S1 was 0.845. CONCLUSION: The lumbar spinal canal dimension measured at the intervertebral disc level in a population of normal Korean subjects is expected to be useful as reference data. The transpedicular plane perpendicular to the spinal canal can give information for estimating the spinal canal dimension at the disc level.