Spontaneous spinal epidural hematomas: One case report and rehabilitation outcome.

Rationale: Spontaneous spinal epidural hematoma (SSEH) is a relatively rare but potentially disabling disease, and the classical presentation of it includes an acute onset of severe, sometimes radiating back or neck pain, followed by signs and symptoms of rapidly evolving nerve root or spinal cord compression.

Patient Concerns: Here, we report a 26-year-old female patient presented with weakness in bilateral lower extremities, progressing to intense paraplegia and anesthesia without recent medical history of trauma, infection, surgery, or drug use.

Diagnosis: A magnetic resonance imaging (MRI) scan of spinal cord was planned and a posterior epidural hematoma of the thoracic spine was observed.

Methylprednisolone microsphere sustained-release membrane inhibits scar formation at the site of peripheral nerve lesion.

Corticosteroids are widely used for the treatment of acute central nervous system injury. However, their bioactivity is limited by their short half-life. Sustained release of glucocorticoids can prolong their efficacy and inhibit scar formation at the site of nerve injury.

Hollow-bone-graft dynamic hip screw can fix and promote bone union after femoral neck fracture: an experimental research.

Background: Delayed bone union, nonunion or osteonecrosis often occur after femoral neck fractures in young adults. Secondary bone healing requires strong internal fixation, intramedullary pressure reduction and early functional exercise.

Objective: To compare bone healing of femoral neck fractures treated with hollow-bone-graft dynamic hip screws (Hb-DHS) and standard dynamic hip screws (DHS) in an animal model.

Rap system of stress stimulation can promote bone union after lower tibial bone fracture: a clinical research.

Background: Lower tibial bone fracture may easily cause bone delayed union or nonunion because of lacking of dynamic mechanical load.

Objective: Research Group would design a new instrument as Rap System of Stress Stimulation (RSSS) to provide dynamic mechanical load which would promote lower tibial bone union postoperatively.

Methods: This clinical research was conducted from January 2008 to December 2010, 92 patients(male 61/female 31, age 16-70 years, mean 36.

Effects of a sliding plate on morphology of the epiphyseal plate in goat distal femur.

The aim of this study was to observe the effects of a sliding plate on the morphology of the epiphyseal plate in goat distal femur. Eighteen premature female goats were divided randomly into sliding plate, regular plate and control groups. Radiographic analysis and histological staining were performed to evaluate the development of epiphyseal plate at 4 and 8 weeks after surgery.

Anterior versus posterior approach in the treatment of chronic thoracolumbar fractures.

The purpose of this study was to compare the results of anterior approach vs posterior approach in the treatment of chronic thoracolumbar fractures. A total of 36 patients with chronic thoracolumbar fractures were divided into 2 groups. Group A was treated by an anterior approach and group B was treated by a posterior approach.

Operative versus nonoperative management of Pipkin type-II fractures associated with posterior hip dislocation.

Little has been written on randomized, controlled studies of operative versus nonoperative management of Pipkin type-II fractures associated with posterior dislocation of the hip. It is difficult to validate the optimal management of these fractures. The goals of this study were to (1) evaluate the results of conservative and surgical treatment for Pipkin type-II fractures associated with posterior dislocation of the hip and supply the optimal management for these fractures and (2) identify whether the Smith-Petersen approach is a safe and reliable surgical approach for Pipkin type-II fractures.

[Transpedicular intracorporeal hydroxyapatite grafting and pedicle screw fixation via paraspinal approach for thoracolumbar fractures].

Objective: To investigate the feasibility and safety of the treatment for thoracolumbar fractures with transpedicular intracorporeal hydroxyapatite grafting and pedicle screw fixation via paraspinal approach.

Methods: From June 2007 to December 2008, 19 cases of thoracolumbar fractures were treated with transpedicular intracorporeal hydroxyapatite grafting and pedicle screw fixation via paraspinal approach. There were 7 female and 12 male, ranging from 21 to 57 years of age (mean 40.

Conservative versus surgical management of Pipkin type I fractures associated with posterior dislocation of the hip: a randomised controlled trial.

The aim of this study was to evaluate the long-term results of conservative and surgical fragment excision treatment in patients with Pipkin type 1 fractures of the femoral head associated with posterior dislocation of the hip by a randomised controlled trial. Sixteen patients were randomly divided into two groups: the conservative group was treated by closed reduction, and the surgical group was treated by closed reduction followed with fragment excision. Functional outcome was determined using the Thompson and Epstein score and the Merle d'Aubigne and Postel score.

[Tunnel enlargement after anterior cruciate ligament reconstruction with peroneus longus muscle combined with BMP and allogeneic bone].

Objective: To investigate the incidence and variation of tunnel enlargement after anterior cruciate ligament (ACL) reconstruction with peroneus longus muscle combined with BMP and allogeneic bone.

Methods: ACL reconstructions with peroneus longus muscle combined with BMP and allogeneic bone were performed in 18 patients (18 knees)in the study from March 2007 to July 2009. Among the patients,14 patients were male and 4 patients were female, ranging in age from 21 to 47 years, with an average of 35.

[Treatment of refracture in plate-screw fixation of femoral shaft with plate and xenogenic bony plate].

Objective: To evaluate curative effect of plate and xenogenic bony plate were applied in refracture in plate-screw fixation of femoral shaft.

Methods: Thirteen cases of refracture in plate-screw fixation of femoral shaft included 8 males and 5 females, average age was 31.2 years ranging from 14 to 57.

[Controlled clinical study of treatment of non-operation and surgical operation for scapular fracture].

Objective: To investigate the effect of treatment methods of non-operation and surgical operation for scapular fracture.

Methods: A retrospective analysis of 52 patients (male 37, female 15, ranging in age from 20 to 48 years, meanly 31 years)with scapular fractures was done. According to Hardegger classification: the scapular body fracture in 24 cases, the surgical neck fracture in 12 cases, the anatomical neck fracture in 3 cases, the glenoidal lip fracture in 6 cases, the scapular spine fracrure in 7 cases.

[Design and experimental study of an epiphyseal slide-traction plate].

Objective: To develop an epiphyseal slide-traction plate in child, which can supply the fracture a sufficient internal fixation, and will not restrain the growth of epiphyses. Animal experiments were carried out with the plates to compare the slide-traction with traditional plate.

Methods: Develop a slide-traction plate for the configuration of the femur condylus of children.

Comparative study on treating complete dislocation of acromioclavicular joint with three different methods.

Objective: To comparatively study complete dislocation of acromioclavicular joint treated with three different methods.

Methods: A total of 96 patients (81 males and 15 females, aged 16-59 years, mean=45 years) with complete dislocation of acromioclavicular joint were treated with Dewar's operation (Group A, n=32), internal fixation with Kirschner tension band wires (Group B, n=44), or internal fixation with Wolter plates (Group C, n=20), respectively, in this study. Eighty-five patients suffered from acute dislocations and eleven from chronic dislocations.