[Effects of invasion on the functional groups and niche of benthic crustaceans and fishes in mangrove wetland].

To investigate the effects of invasion on mangrove wetland ecosystem, the benthic crustacean and fish samples were collected using cage nets in Zhangjiang Estuary Mangrove Wetland, Fujian Pro-vince in August 2020, January and April 2021. The five sampling sites included two mangroves ( and ) sites, two sites, and one mudflat site. The abundance, biomass, index of relative importance (IRI), Shannon diversity index (), Pielou evenness index (), and Margalef richness index () were used to quantify the dominant species and species diversity of benthic crustaceans and fishes.

[Clinical outcome analysis on using extensor digitorum communis splitting approach for the treatment of radial head fractures].

Objective: To explore the clinical outcomes of internal fixation or replacement for the treatment of radial head fractures through the extensor digitorum communis splitting approach.

Methods: From July 2012 to May 2015, 25 patients with radial head fractures were reviewed. There were 17 males and 8 females, ranging in age from 20 to 67 years old, with a mean age of 39 years old.

[Sapflow characteristics of Kandelia obovata and their controlling factors in Zhangjiang estuary, China.].

In this study, the Grainer's thermal dissipation probe method was applied to monitor sap flux density (SFD) of a mangrove species Kandelia obovata over a period of one year (2010-10-2011-10) in Zhangjiangkou Mangrove National Nature Reserve, Fujian, China. The results showed that both season and diameter class exerted significant effects on the SFD of K. obovata trees.

[Short-term result of hip resurfacing arthroplasty in the treatment of patients with femoral head necrosis].

Objective: To study short-term results of hip resurfacing arthroplasty (HRA) in the treatment of patients with avascular necrosis of femoral head (ANFH), and to explore indication and strategy in this surgery.

Methods: From December 2006 to December 2009, 37 patients (43 hips) with avascular necrosis of femoral head were treated with total hip resurfacing arthroplasty. Among the patients, 25 patients were male and 12 patients were female, with an average age of 44.

[Anatomic comparison between spinous process screws and pedicle screws techniques of the second cervical vertebar].

Objective: To compare anatomic difference between spinous process screws and pedicle screws techniques of the second cervical vertebra.

Methods: Ten human cadaveric of cervical spine (5 male, 5 female) were harvested and had no gross deformities such as scoliosis and/or kyphosis were found in the study. The average age of the subjects was 60.

[Case-control study on acute colonic pseudo-obstruction after total hip or knee arthroplasty].

Objective: To investigate the incidence, predisposing factors and therapeutic modalities of acute colonic pseudo-obstruction (ACPO) in patients after total hip arthroplasties (THA) and total knee arthroplasties (TKA).

Methods: From January 2006 to December 2009, 12 patients with ACPO after THA and TKA operation were investigated retrospectively,who were viewed as the ACPO group. There were 10 males and 2 females with an average age of (78 +/- 12) years in the ACPO group.

[An anatomic study of posterior C(2) spinous process laminar screw fixation].

Objectives: To explore the feasibility and the technical parameters in posterior C2 spinous process laminar screw fixation, and discuss the clinic significance of C2 spinous process laminar screws.

Methods: Twenty cervical cadaveric spines of C2 were dissected, with care taken to expose the lamina and spinous process. After the entrance point of spinous process screw were determined, posterior C2 spinous process laminar screw implantation was performed under visual control.

[Anatomical considerations for the placement of C₂ spinous process screws].

Objectives: To quantitatively anatomically evaluate the C₂ spinous process, analyze the anatomical feasibility of the C₂ spinous process screws and its clinical significance.

Methods: To dissect and evaluate 30 cervical cadaveric spines of C₂ which were taken to expose the lamina and spinous process. Anatomic quantitative evaluation of the C₂ spinous process included its height and width.

[Biomechanical study on transarticular screw and plate fixation syetem in the lower cervical spine].

Objective: To compare the cervical stabilities of transarticular screw fixation alone, and transarticular screw and plate fixation system.

Methods: Twelve specimens of cervical vertebra containing C2-T1 were obtained from human cadaver. The three-column instability model was made at C4.

[Comparison of humeral head replacement and internal fixation for the treatment of 3 parts and 4 parts fractures of proximal humerus in the elderly].

Objectives: To compare the indication, technical keys during surgery and early results of humeral head replacement and internal fixation for the 3 parts and 4 parts fractures of proximal humerus in the elderly.

Methods: From July. 2004 to July.

[Hip resurfacing arthroplasty in patients with ankylosing spondylitis].

Objective: To study the short-term results of metal on metal hip resurfacing arthroplasty (HRA) for the treatment of patients with ankylosing spondylitis (AS), to explore the indications and technology of this surgery.

Methods: From February 2006 to April 2008, 11 patients (15 hips) with ankylosing spondylitis were treated with metal on metal total hip resurfacing arthroplasty. Among them, 9 patients were male, and 2 patients were female, with an average age of 32.

[Strategy of prevention and management of intraoperative fractures of acetabulum during primary total hip arthroplasty].

Objective: To analyse the causes and resultes of intraoperative occurrence of an acetabular fracture in primary total hip arthroplasty and discuss propriate prevention and treatment of this problem.

Methods: Between July 2004 and December 2006, 326 primary total hip arthroplasties were retrospectively reviewed and found that eleven patients (eleven hips) had sustained an intraoperative acetabular fracture involving 7 male and 4 female,aged from 37 to 71 years (mean 54 years). Analyzed the causes of fractures, the anatomic location, treatment and outcome of the fractures.

[The feasibilty study of posterior laminar screw fixation techniques in axis].

Objective: Observation and measurement were done on axial laminar to get the parameters of morphology in Chinese. To evaluate the possibility of the placement of axial laminar screw.

Methods: The relative parameters of 28 sets of fresh Chinese adults' axial specimens were measured with a digital caliper, a goniometer and imageology, including the distance from superior and inferior the anchor point of the axial laminar screw to superior margin of the axial laminar, the superior,middle and inferior thickness of axial laminar, the height of axial laminar, the length and the angle of the axial laminar screw trajectory, the distance from the anchor point of the axial laminar screw to hole of vertebral artery and the central point of inferior articular process and so on.