The effect of laminae lesion on thoraco-lumbar fracture reduction.

INTRODUCTION: The treatment of fractures involving the lumbar spine has been controversial. Laminae lesion may be complete or of the greenstick type (incomplete). Dural tears and nerve root entrapment may accompany these laminae fractures. The aim of this study is twofold, to assess the effect of different types of laminae fractures on the anteriorvertebral height restoration in upper lumbar burst fractures and to determine the incidences of the intraoperatively detected dural tear and neural entrapment in complete and incomplete laminae fractures to choose the optimal treatment. MATERIALS AND METHODS: A retrospective review was conducted on 112 patients with 114 lumbar burst fractures treated operatively, age ranged from 17 to 55 years (mean age 32). Male to female ratio was (93%/7%), 8 females. Patients were divided into three groups, group 1 patients without lamina fracture, group 2 patients with complete type lamina fracture and group 3 patients with (percutaneous) incomplete type lamina fractures. All clinical charts and radiologic data of these groups were analyzed for their association with dural tears, neural entrapment and the impact of lamina fracture (complete and incomplete types) on the efficacy of anterior vertebral height restoration. The severity of injury was determined using the ASIA (Modified Frankel scale). RESULTS: Out of 114 upper lumbar burst fractures, lamina fracture occurred in 34 patients (29.8%), complete lamina fracture occurred in 21 patients (61.7%), whereas incomplete lamina fracture occurred in 13 patients (38.3%). Dural tear was detected in 16 patients (47%) and was predominantly higher in complete type lamina fracture 12 patients (57%) when compared to 4 dural tears (30%) in incomplete lamina fractures. Analysis of the data revealed no significant difference in the preoperative anterior vertebral height loss and local kyphotic angle between the three groups. However the anterior vertebral height and local kyhpotic angle restoration were found to be affected by the presence of complete lamina fracture when compared to other groups with incomplete lamina fracture and without lamina fracture (P=0.001). CONCLUSION: In upper lumbar burst fractures, complete lamina fracture is an indicator of injury severity. When detected preoperatively on CT or MRI scanning, it should be operated by open book laminectomy even if the patient is neurologically intact since it carries a high risk of neural entrapment, and its presence affects the intraoperative postural and instrumental trials for anterior vertebral height restoration.

Tumor grade-related thallium-201 uptake in chondrosarcomas.

OBJECTIVES: Diagnosis of low-grade chondrosarcoma, especially discrimination between enchondroma and low-grade chondrosarcoma, may be difficult pathologically. The aim of this study was to evaluate the value of thallium-201 (Tl-201) scintigraphy in the diagnosis of chondrosarcoma and to investigate whether there was a correlation between Tl-201 uptake and tumor grade. METHODS: We retrospectively evaluated 121 patients with pathologically proven bone and soft tissue tumors diagnosed between the years 1999 and 2007. All patients were followed by the Bone and Soft Tissue Tumor Working Group in our hospital. Twenty-three patients, mean age 44 +/- 15 (range 17-72) years, with a diagnosis of cartilaginous tumors were included. Increased Tl-201 uptake at the lesion sites greater than background was evaluated as malignant tumor. For the pathologic classification, a grading system (grade 1-3) based on the histopathologic findings was used. Pearson correlation coefficient was used to determine whether there was any correlation between Tl-201 uptake and tumor grade in chondrosarcoma. RESULTS: There were 7 enchondromas and 16 chondrosarcomas. Four of 16 patients with chondrosarcoma had lesions pathologically classified as grade 3, 5 as grade 2, and 7 had grade 1 chondrosarcoma. Increased Tl-201 uptake was observed in all patients with grade 3 chondrosarcoma and 2 patients with grade 2 chondrosarcoma. Of 10 patients with chondrosarcoma, 3 grade 2 chondrosarcomas and 7 grade 1 chondrosarcomas, there was no Tl-201 uptake in the tumor region. A significant correlation was found between Tl-201 uptake and tumor grade in chondrosarcoma (p = 0.002, r = 0.71). Only a few reports in literature have demonstrated false negative results in low-grade chondrosarcoma. CONCLUSION: Tl-201 uptake was related to tumor grade in chondrosarcoma. If there is a possibility of chondrosarcoma, Tl-201 scintigraphy should be reported with caution.

Reduction of major amputations after starting a multidisciplinary diabetic foot care team: single centre experience from Turkey.

INTRODUCTION: It is widely recognized that a multidisciplinary team is effective in the management of diabetic foot ulcers. Contrary to developed countries, multidisciplinary diabetic foot care teams and/or clinics have not been constructed in most centres in developing countries. The aim of this study was to present our data regarding amputation rates and profiles before and after starting the Dokuz Eylul University multidisciplinary diabetic foot care team. METHODS: This study includes data from diabetic foot ulcer episodes which were managed in Dokuz Eylul University Hospital between January 1999 and January 2008. The data was collected prospectively during a minimum follow-up of 6 months in all ulcers. After January 2002, management of ulcers was coordinated by the diabetic foot care team (n=437). Amputation rates were compared to those who were admitted before January 2002 (n=137). RESULTS: Overall amputation and minor amputation rates were similar for both periods. However, major amputations were observed to be decreased after starting the Dokuz Eylul University multidisciplinary diabetic foot care team (20.4% vs. 12.6%, p=0.026). CONCLUSIONS: Our results demonstrated that major amputation rates can be reduced by team work. Formation of multidisciplinary diabetic foot care teams and clinics should be encouraged in Turkey.

Tl-201 uptake in bone and soft tissue involvement of sarcoidosis.

The authors describe a 38-year-old man who was referred to the nuclear medicine department because of pain and swelling of his fingers in both hands. Tc-99m MDP and Tl-201 scans were performed to evaluate the lesions. A Tc-99m MDP bone scan showed hyperemia and increased uptake in the lesions. A Tl-201 scan showed marked uptake in both early and delayed images in the lesions of his fingers. Bone biopsy and histologic examination confirmed sarcoidosis. This case indicates that Tl-201 uptake can be seen in bone lesions resulting from sarcoidosis.

Effect of rotation on frontal plane deformity in idiopathic scoliosis.

To analyze the effect of rotation on frontal plane deformity in idiopathic scoliosis, 44 patients with idiopathic scoliosis aged 11 to 18 years were examined using standing anteroposterior and true AP radiographs. Axial rotation was measured by computed tomography. Patients were divided into two groups according to Cobb angle: patients with angles <30 degrees comprised group 1 and patients with angles >30 degrees comprised group 2. Cobb angle increased with true-AP projection a mean of 21.2% in group 1 and 16.7% in group 2. Rotation degree was significantly correlated with increasing degree of frontal plane deformity (P<.01) in group 1 but not in group 2 (P>.05). These results demonstrate the influence of rotation over frontal plane deformity and is more apparent at curves >30 degrees.

Forty-two year survival with bilateral Judet hip prostheses.

In this case report, a 70-year-old man is presented who had begun to suffer from ankylosing spondylitis when he was 12 years old and had been operated on because of bilateral hip ankylosis at the age of 21 years. The interesting aspect of this case is that both hips were replaced with Judet type prostheses, which survived for 42 years.

Primary intramuscular hydatidosis of supraspinatus muscle.

Hydatid disease of the muscle is very rare and represents approximately 3% of all patients with hydatidosis. Since the infection closely resembles a soft-tissue tumor on clinical examination, the preoperative radiologic diagnosis is very important to avoid biopsy. We report an unusual case of primary intramuscular hydatidosis with its magnetic resonance imaging appearance, clinical and pathological findings.

Pigmented villonodular synovitis of the knee presenting as a popliteal cyst.

Pigmented villonodular synovitis is a locally aggressive tumor of the synovium of joints and tendon sheaths. It is commonly seen in the synovial lining of the flexor tendons of the hand and in the synovium of the knee and less commonly in other joints. A case of pigmented villonodular synovitis of the knee in a 60-year-old man, with an intra-articular origin extending extra-articularly, is presented. The interesting point is that the initial diagnosis was a Baker cyst.

A new method to measure vertebral rotation from CT scans.

CT measurement methods have good reliability for idiopathic scoliosis transverse plane deformity evaluation. However, because of application difficulties and variations in how these methods are applied, more sensitive methods are needed. This paper presents a new method for measurement of vertebral rotation from tomographic scans. First, the method was subject to clinical, intra-observer and inter-observer analysis. Twenty-three patients with adolescent idiopathic scoliosis were studied to test the clinical reliability of this method. There were no statistical differences between the results of the new method and Ho's method (P = 0.3380) in the clinical study. Intraobserver and inter-observer analysis showed that this method was reliable. An experimental study was then conducted to show the confidence limits of our new method, which were found to be +/-1.6 degrees, and there was no significant difference between the mean rotation value obtained from CT scans using our new method and that obtained using the mechanical method. These results suggest that our new method is a simple, practical and reliable method for measurement of vertebral rotation from CT scans.