A feasibility study using cadaver: Efficacy and safety of the novel automatic urinary catheterization device.

Intermittent catheterization is an effective bladder management strategy for patients with incomplete bladder emptying. For self-catheterization, sufficient hand function in both hands is necessary. We have developed a novel automatic urinary catheterization device to induce self-IC for patients with bladder dysfunction and upper extremity disability.

Impact of Neck Position on the Probability of Common Carotid Artery Puncture During Ultrasound-Guided Stellate Ganglion Block.

Background: The carotid artery must be avoided during stellate ganglion block. However, information on optimal neck position during the ultrasound-guided approach is limited.

Objective: To investigate the relation between the target area of the procedure and the carotid artery in different neck positions.

Predictive Variables for Sonographically Guided Corticosteroid Injection in Mild-to-Moderate Carpal Tunnel Syndrome.

Objective: To assess the predictive variables after sonographically guided corticosteroid injection in carpal tunnel syndrome.

Methods: A prospective, observational study was carried out on 25 wrists of 20 consecutive patients with carpal tunnel syndrome, confirmed by the American Association of Neuromuscular and Electrodiagnostic Medicine criteria, which includes clinical history, symptoms, and evidence of slowing of distal median nerve conduction. Visual analogue scale (VAS) and Boston Carpal Tunnel Questionnaire (BCTQ) were asked to the patients before and 4 weeks after the procedure.

A preliminary study on surgical navigation for epiduroscopic laser neural decompression.

Epiduroscopic laser neural decompression is an emerging therapeutic modality to treat lumbar spine pathologies including chronic low back pain, spinal stenosis, and disk herniation via catheter insertion followed by laser ablation of the lesion. Despite the efficacy of epiduroscopic laser neural decompression, excessive radiation doses due to fluoroscopy during epiduroscopic laser neural decompression have limited its widespread application. To address the issue, we propose a surgical navigation system to assist in epiduroscopic laser neural decompression procedures using radiation-free image guidance.

Osteosarcoma in Asian Populations Over the Age of 40 Years: A Multicenter Study.

Background: Elderly patients with osteosarcoma (OSA) are no longer uncommon; however, many questions remain regarding this population. We investigated the clinicopathological characteristics and prognostic factors of OSA in an Asian population over the age of 40 years.

Methods: This was a multi-national, multi-institutional study by the Eastern Asian Musculoskeletal Oncology Group (EAMOG).

The analysis of treatment of aggressive fibromatosis using oral methotrexate chemotherapy.

Background: Aggressive fibromatosis is a rare but invasive tumor infiltrating widely between fascia and muscle fibers. It has a high tendency to be locally recurrent despite complete resection. Effectiveness of adjuvant treatment for aggressive fibromatosis including radiotherapy, pharmacological agents, hormonal treatments, and chemotherapy have been previously reported.

Tumor treated by endoscopy.

Background: This study was conducted to examine the clinical usefulness and efficacy of endoscopic curettage on benign bone tumor.

Methods: Thirty-two patients (20 men and 12 women) with benign bone tumor were included in the study. The patients were aged between five and 76 years; the mean follow-up period was 27.

The efficacy of epiduroscopic neural decompression with Ho:YAG laser ablation in lumbar spinal stenosis.

Although epiduroscopy is one of the popular interventions for the management of lumbar spinal stenosis (LSS), only a part of these patients show improvement in pain and functional level. Consequently, the authors thought that holmium:YAG (Ho:YAG) laser can be a reasonable alternative as an adjunct of epiduroscopic procedure, but has not been thoroughly determined yet which influence is resulted by it. This study was conducted to evaluate and compare the efficacy of epiduroscopic neural decompression (END) and END with Ho:YAG laser (ELND) in patients with LSS.

Clinical outcome of autologous bone marrow aspirates concentrate (BMAC) injection in degenerative arthritis of the knee.

Purpose: As a treatment method of degenerative arthritis of knee, this study evaluated the clinical efficacy of the intra-articular injection of autologous bone marrow aspirates concentrate (BMAC) with adipose tissue.

Materials And Methods: Between April 2011 and May 2012, 41 patients (75 knees) who were diagnosed as a degenerative knee arthritis and underwent the BMAC injection with adipose tissue were included in this study. Mean age was 60.

Biologic fixation through bridge plating for comminuted shaft fracture of the clavicle: technical aspects and prospective clinical experience with a minimum of 12-month follow-up.

For comminuted shaft fracture of clavicle, the operative goal, aside from sound bone healing without complications of direct reduction, is maintenance of the original length in order to maintain the normal biomechanics of adjacent joint. Our bridge plating technique utilizing distraction through a lumbar spreader was expected to be effective for restoring clavicular length with soft tissue preservation. However, there are two disadvantages.

Clinical and radiological outcomes following microscopic decompression utilizing tubular retractor or conventional microscopic decompression in lumbar spinal stenosis with a minimum of 10-year follow-up.

Satisfactory short- and mid-term results have been observed following microscopic decompression with tubular retractor (MDT) and conventional microscopic decompression (CMD) in lumbar spinal stenosis (LSS). It is not yet clear which surgical procedure is the optimal treatment for LSS, especially in long-term follow-up period. To the best of our knowledge, there is no comparative study analyzing the clinical-radiological outcomes of MDT and CMD over a 10-year follow-up periods.

The efficacy of percutaneous long-segmental posterior fixation of unstable thoracolumbar fracture with partial neurologic deficit.

Study Design: Retrospective analysis.

Purpose: The aim of this study was to evaluate the clinical and radiological outcomes of patients with unstable thoracolumbar fracture (UTLF) who were treated by percutaneous long-segmental posterior fixation (PLSPF) by two vertebrae cranial to the fracture with two vertebrae caudal.

Overview Of Literature: To the best of our knowledge, PLSPF for stabilization of UTLF has not been reported.

Platelet-rich plasma (PRP) injections as an effective treatment for early osteoarthritis.

The aims of this study were to analyze the range of cartilage damage and patellofemoral joint (PFJ) degeneration in degenerative osteoarthritis (OA) and determine the duration for the positive effects of platelet-rich plasma (PRP) injection. This study included 65 patients suffering from OA that were treated with intra-articular PRP injection. The patients were prospectively evaluated at 1, 3, 6, 9, and 12 months after the procedure using a visual analogue scale (VAS) score and an International Knee Documentation Committee (IKDC) score.

Occipitocervical reconstruction through direct lateral and posterior approach for the treatment of primary osteosarcoma in the atlas: a case report.

Study Design: Case report.

Objective: To report a new surgical technique of the primary cervical osteosarcoma in the atlas.

Summary Of Background Data: Primary osteosarcoma of the atlas is extremely rare.

A reconstruction with extracorporeal irradiated autograft in osteosarcoma around the knee.

Background And Objectives: An extracorporeal irradiated (ECI) autograft was first reported in Israel in 1968 for the treatment of primary malignant bone tumor. However, subsequent reports covered mostly short-term follow up results, and the reported results of reconstruction vary from study to study. We analyze the long-term follow up results of reconstruction using an extracorporeal irradiated (ECI) autograft in osteosarcoma around the knee.

Long-term survivals of stage IIb osteosarcoma: a 20-year experience in a single institution.

Background: The purpose of this study is to evaluate the disease-free survival (DFS) and overall survival (OS) of patients with stage IIB osteosarcoma at a single institution for 20 years and to compare the results according to the chemotherapy protocols.

Methods: From Jan 1988 to Nov 2008, 167 patients with osteosarcoma were treated at our hospital and among them, 117 patients (67 males and 50 females) with stage IIB osteosarcoma were evaluable. Their mean age was 22.

Location and classification of popliteus tendon's origin: cadaveric study.

Background: In posterolateral insufficiency, many investigators have proposed a lateral tunnel for PT reconstruction. Although they were usually located at the anterior and proximal to the lateral femoral epicondyle, there are still controversies regarding the exact location of PT tunnel. The aim of the present study was to describe our novel findings of femoral attachment of popliteus tendon (PT) and lateral collateral ligament (LCL) and to present an adequate femoral tunnel site, based on the cadaver dissection.

Pelvis and extremity osteosarcoma with similar tumor volume have an equivalent survival.

Background And Objectives: The poor prognosis of pelvic osteosarcoma is well recognized, but the cause of this prognosis has not been well defined.

Methods: We analyzed the clinicopathologic characteristics of pelvic osteosarcoma, and their prognostic significances in a cohort of 41 patients, treated either surgically by ablation or non-surgically. In a separate case-controlled study, the 20 surgically treated osteosarcoma patients were matched with 38 patients with extremity osteosarcoma by tumor volume and age.

Differential presentations, clinical courses, and survivals of osteosarcomas of the proximal humerus over other extremity locations.

Background: Although there are controversies about the prognosis of proximal humeral osteosarcoma, our previous study showed poor survival in those patients. In the present study, we undertook to determine why this site is associated with a poor outcome and to identify the clinicopathologic variables involved.

Methods: The study cohort consisted of 36 proximal humeral and 341 other extremity American Joint Committee on Cancer (AJCC) stage II osteosarcomas.

Osteosarcoma of the patella: biologic reconstruction with allograft.

Osteosarcoma rarely occurs in the patella. The majority of lesions located in the patella are usually benign. According to the literature, osteosarcoma of the patella has been reported in 32 cases.

A 9-month-old phosphaturic mesenchymal tumor mimicking the intractable rickets.

Phosphaturic mesenchymal tumor is an extremely rare disease and is frequently associated with oncogenic osteomalacia showing paraneoplastic syndrome, which is characterized by phosphaturia, hypophosphatemia, normocalcemia, and decreased levels of 1,25-dihydroxyvitamin D3 associated with a tumor. A 2-year-old boy, who had a soft tissue tumor on his right thigh and previously diagnosed as myositis ossificans at 9-months-old, was presented with rachitic rosary and mildly enlarged tumor. Biochemical investigations showed hypophosphatemia, hyperphosphaturia, and an increased alkaline phosphatase level of 440 U/l (25-100 U/l), suggesting rickets, which was resistant to vitamin D dietary supplementation.

Latent period best predicts acetabular cup failure after total hip arthroplasties in radiated hips.

Unlabelled: We retrospectively analyzed the prognostic factors related to the failure of acetabular components after total hip arthroplasties in radiated hips. Eighteen hips from 12 patients who had primary arthroplasties were followed up for a mean of 58 months (range, 20-139 months). The patients' age, total radiation dose, latent period, presence of infection, and the type of the acetabular component were examined as possible predictors of failure using the Cox proportional hazard regression.