Comparison of the Effects of Proximal Humeral Internal Locking System (PHILOS) Alone and PHILOS Combined with Fibular Allograft in the Treatment of Neer Three- or Four-part Proximal Humerus Fractures in the Elderly.

Objective: To compare and analyze the clinical outcomes of the proximal humeral internal locking system (PHILOS) alone and the PHILOS combined with fibular allograft in the treatment of Neer three- and four-part proximal humerus fractures (PHF) in the elderly.

Methods: From January 2014 to January 2018, a total of 42 elderly patients with Neer three- or four-part PHF admitted to our hospital were randomly divided into observation group and control group, with 21 patients in each group. The observation group was treated with the PHILOS combined with fibular allograft.

[Case control study on Zero-profile intervertebral fusion system and conventional cage-plate intervertebral fusion system for the treatment of multi-segment cervical spondylosis].

Objective: To explore the clinical effect in the near future between Zero-profile intervertebral fusion system (Zero-P) and conventional cage-plate intervertebral fusion system (CCP) for the multi-segment(>=2 segments) cervical spondylosis.

Methods: Forty-two patients with cervical spondylosis who underwent multi-segment decompression of the cervical spine from October 2012 to October 2017 were selected as subjects. Zero-P was applied in 21 patients (Zero-P group) and CCP was applied in 21 patients(CCP group).

Value of forceps biopsy and kyphoplasty in Kümmell's disease.

The diagnosis of Kümmell's disease mainly depends on clinical and radiologic findings. However, these are not the gold standards for diagnosing this disease; bone biopsy is required. The authors performed modified bone biopsy and cement-filling techniques during kyphoplasty and investigated the feasibility and efficacy of kyphoplasty for the treatment of Kümmell's disease.

[The application of biopsy and kyphoplasty in the diagnosis and treatment of osteoporotic thoracolumbar vertebral compression fracture nonunion].

Objectives: To investigate the clinical efficacy and safety of biopsy and Kyphoplasty in the diagnosis and treatment of osteoporotic thoracolumbar vertebral fracture nonunion, and to explore the clinical characteristics of the disease.

Methods: From July 2005 to May 2010, the clinical data of 8 patients with nonunion of osteoporotic thoracolumbar vertebral fractures were studied. There were 3 males and 5 females, with the mean age of 73.

[Prevention and treatment of bone cement leakage in percutaneous kyphoplasty for osteoporotic vertebral body compression fracture].

Objective: To investigate the causes and preventive methods of the bone cement leakage in percutaneous kyphoplasty (PKP) for osteoporotic vertebral body compression fracture (OVCF).

Methods: From April 2003 to November 2007, 116 patients with OVCF were treated with PKP, including 57 males and 59 females aged 65-92 years old (average 67.7 years old).

[Keyhole partial laminectomy and tapping technique combined blind transpedicular screw placement in cervical spine].

Objective: To investigate the clinical efficacy and safety of keyhole partial laminectomy and tapping technique combined blindly transpedicular screw placement in cervical spine.

Methods: Keyhole partial laminectomy and tapping technique combined blindly transpedicular screw placement, was introduced. It was performed in 40 patients.