Murat Pekmezci

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A descriptive clinical study in healthy adolescents was done to evaluate the clinical shoulder balance and analyze the correlation between clinical and radiological parameters which are currently used to evaluate shoulder balance. In addition to trunk shift and rib hump, shoulder balance is one of the criteria that are used to evaluate the outcomes in(More)
STUDY DESIGN Experimental study. OBJECTIVE To investigate whether anterior spine fusion in the immature porcine spine has an adverse effect on the development of spinal canal. SUMMARY OF BACKGROUND DATA Neurocentral cartilage (NCC) is located in the posterior vertebral body and responsible for the development of posterior aspect of the spinal canal.(More)
BACKGROUND The ultrastructure of the normal menisci has been thoroughly investigated and found to correlate with meniscal tears. Although discoid menisci are accepted to have the same composition as their normal counterparts, to our knowledge, no study in the literature has investigated this issue. PURPOSE To investigate the ultrastructure of the discoid(More)
BACKGROUND CONTEXT Few studies exist for magnetic resonance imaging (MRI) issues and ballistics, and there are no studies addressing movement, heating, and artifacts associated with ballistics at 3-tesla (T). Movement because of magnetic field interactions and radiofrequency (RF)-induced heating of retained bullets may injure nearby critical structures.(More)
STUDY DESIGN A retrospective review of a case series. OBJECTIVE To describe a novel surgical technique for a minimally disruptive lateral transthoracic transpleural approach to treat thoracic disc herniations. SUMMARY OF BACKGROUND DATA Thoracic disc herniation is a relatively uncommon spinal condition, and surgical treatment is indicated for patients(More)
BACKGROUND Pseudoarthrosis after pedicle subtraction osteotomy (PSO) can require revision surgery due to posterior rod failure, and the stiffness of these revision constructs has not been quantified. OBJECTIVE To compare the multidirectional bending stiffness of 7 revision strategies following rod failure. METHODS Seven fresh-frozen human spines(More)
STUDY DESIGN Ex vivo biomechanical evaluation using cadaveric vertebral bodies. OBJECTIVE To compare the subsidence characteristics of a novel rectangular footplate design with a conventional circular footplate design. SUMMARY OF BACKGROUND DATA Cage subsidence is a postoperative complication after reconstruction of corpectomy defects in the(More)
Degenerative joint disease is not uncommon in patients with lower extremity amputations. These patients are candidates for joint arthroplasty procedures; however, certain modifications may be necessary during the procedure to overcome the challenges presented by the amputation. The authors describe a total hip arthroplasty in a 51-year-old patient 45 years(More)
Introduction Studies document rod fracture in pedicle subtraction osteotomy (PSO) settings where disk spaces were preserved above or adjacent to the PSO. This study compares the multidirectional bending rigidity and fatigue life of PSO segments with or without interbody support. Methods Twelve specimens received bilateral T12-S1 posterior fixation and L3(More)
STUDY DESIGN Biomechanical study in an animal model. OBJECTIVE To evaluate the feasibility of sequential dilation of the immature pedicles by dilators and to determine the biomechanical stability of screws placed in these expanded pedicles. SUMMARY OF BACKGROUND DATA Pedicle screws have become the implant of choice in spinal fixation. Secondary to the(More)