Objective In addition to bone bridging inside a cage or graft (intragraft bone bridging, InGBB), extragraft bone bridging (ExGBB) is commonly observed after anterior cervical discectomy and fusion (ACDF) with a stand-alone cage. However, solid bony fusion without the formation of ExGBB might be a desirable condition. We hypothesized that an insufficient contact area for InGBB might be a causati...

A brief history of anterior cervical decompression and fusion (ACDF) surgery is useful. The first reports on ventral approaches to cervical disc pathology appeared in the 1950s. Two most common methods for ACDF were described by Robinson and Smith in 1955 (1) and Cloward in 1958 (2). Robinson and Smith described a surgical procedure for removing cervical disc material in which a rectangular bon...

OBJECTIVE The authors conducted a retrospective study to compare the implantation of carbon fiber composite frame cages (CFCFCs) to the implantation of polyetheretherketone (PEEK) cages after anterior cervical discectomy for cervical degenerative disc disease. In addition, the predictive factors that influenced fusion or subsidence were investigated. METHODS A total of 58 patients with single...

BACKGROUND CONTEXT Recent literature has raised some apprehensions with regard to the usage of cervical cages. PURPOSE Radiological review of cases performed at our institution with a novel cage made of polyetheretherketone (PEEK). STUDY DESIGN Retrospective study. METHODS A retrospective review of the first 15 consecutive cases of single-level anterior cervical interbody fusion using the...

IN SITU BIODEGRADABLE INTERBODY FUSION CAGE DESIGN BY THE INTEGRATED GLOBAL AND LOCAL TOPOLOGY OPTIMIZATION AN EXAMPLE ON DESIGNING YUCATAN MINIPIG LUMBAR INTERBODY FUSION CAGE FOR LARGE ANIMAL STUDY Hee Suk Kang1,3, Scott J. Hollister2,1,3, Frank LaMarca3,2, Chia-Ying Lin3,2 1Mechanical Engineering, University of Michigan, Ann Arbor, MI; 2Biomedical Engineering, University of Michigan, Ann Arb...

The use of titanium cages for posterior lumbar interbody fusion (PLIF) has gained popularity because it offers the advantages of anterior column support and stabilization. However, cage migration into the spinal canal may have severe or disastrous consequences. Here, the authors report an unexpected case of posterior migration of fusion cages after screw removal in a patient that underwent PLIF...

©2003 British Editorial Society of Bone and Joint Surgery doi:10.1302/0301-620X.85B7.13398 $2.00 e conducted a prospective, randomised study of 42 cervical interbody fusions undertaken with either an autologous tricortical graft or a cage. The factors assessed in the two groups were: (1) time taken to achieve fusion; (2) neck disability index; (3) pain score; (4) interbody height ratio; (5) int...

The increasing adoption of minimally invasive techniques for spine surgery in recent years has led to significant advancements in instrumentation for lumbar interbody fusion. Percutaneous pedicle screw fixation is now a mature technology, but the role of expandable cages is still evolving. The capability to deliver a multiexpandable interbody cage with a large footprint through a narrow surgica...

BACKGROUND Selecting an interbody cage with appropriate height is one of the key steps in lumbar interbody fusion, and has an important impact on clinical efficacy. How to choose the appropriate height of the cage becomes one of the core problems of lumbar interbody fusion for spine surgeons. However, studies about objective selection criteria on interbody cage height was rare. METHODS One hu...