STUDY DESIGN Systematic literature review. OBJECTIVES To evaluate the diagnostic accuracy of clinical tests used to diagnose patients with structural lumbar segmental instability (LSI). BACKGROUND Patients with structural LSI represent an important, identifiable subgrouping of individuals with low back pain. Numerous clinical tests have been proposed to diagnose structural LSI; however, dat...

STUDY DESIGN This is a retrospective case study. PURPOSE This study was designed to analyze the surgical outcomes of patients who underwent minimally invasive transforaminal lumbar interbody fusion (TLIF) for the treatment of spondylolisthesis and degenerative segmental instability. OVERVIEW OF LITERATURE If the surgical outcomes of a procedure are evaluated together with multiple indicatio...

BACKGROUNDS This paper describes a novel method in treatment of scapholunate dissociation accompanied with rotatory subluxation of the scaphoid. The idea of this method is to create a kind of axial lever that can fully reconstruct anatomical relationship between the scaphoid and the lunate, with no involvement of extrinsic ligaments, and with simultaneous restriction of pathological alignment o...

Discogenic pain is closely related to degenerative disc disease (DDD). The source of low back pain is internal disruption of the lumbar intervertebral disc. Chronic segmental instability, mechanical irritation of sensory nociceptive terminals and biochemically activation of inflamatory mediators are thought as causes of discogenic low back pain. Acute and chronic spinal instability are known as...

According to the wide application of segmental lining in mechanized tunneling, recognizing the behavior of segmental lining joints is important in tunnels designing. In the structural analysis of the tunnel segmental lining, segmental joints can be considered as elastic joints, and their stiffness characteristics are affected by the rotational, shear, and axial stiffness. The purpose of this wo...