The lumbar paraspinal muscles were examined by surface electromyography (EMG) in 22 patients with low back pain and 22 healthy volunteers. Surface electrodes were placed bilaterally on the lumbar multifidus and longissimus muscles at the level of the spinous process of the third lumbar vertebra. Kinesiologic EMG was recorded, in standing resting position, during the following trunk motions: tru...

background: posttraumatic and/or postsurgical knee stiff ness is one of the orthopedic complications which is difficult to be treated and can affect individual’s life negatively. the aim of this study is to investigate the results of quadricepsplasty in patients with knee stiff ness resulted from femoral fracture. materials and methods: this is a cross-sectional study on all patients with femor...

The objective of this video is to identify at-risk postures in vaginal surgery that may lead work-related musculoskeletal disorders (WMSD) and demonstrate corrective exercises prevent future pain. Vaginal surgeons report high rates WMSDs, yet little education exists on WMSD prevention specific population. In video, we five key problematic WMSDs. These include forward head posture, increased tho...

STUDY DESIGN Prospective. OBJECTIVES The goal of this study was to evaluate the effect of posterior spinal fusion surgery terminating at different lowest instrumented vertebrae (LIV) on trunk mobility in individuals with adolescent idiopathic scoliosis (AIS). SUMMARY OF BACKGROUND DATA Posterior spinal fusion with instrumentation is the standard surgical technique employed in AIS for correc...

Falls are a common and potentially dangerous event, especially in amputees. In this study, we compared the mechanisms of balance recovery of 17 unilateral transtibial amputees and 17 matched able-bodied controls after being released from a forward-inclined orientation of 10%. Kinematic analysis revealed statistically significant differences in response time and knee flexion at heel-strike betwe...

To ensure the biomechanical properties of Ti-24Nb-4Zr-8Sn, stress-shielding effects were compared between Ti-24Nb-4Zr-8Sn and Ti-6Al-4V fixation by using a porcine model. Twelve thoracolumbar spines (T12-L5) of 12-month-old male pigs were randomly divided into two groups: Ti-24Nb-4Zr-8Sn (EG, n = 6) and Ti-6Al-4V (RG, n = 6) fixation. Pedicle screw was fixed at the outer edge of L4-5 vertebral ...

f p q r a j t he purpose of this study was to assess arthroscopic epair of rotator cuff tears at a minimum of 2 years ostoperatively with both patient-derived and objective utcome measures, including the use of magnetic resoance imaging (MRI), to evaluate repair status. Evaluted were 49 shoulders in 47 consecutive patients. he American Shoulder and Elbow Surgeons score, onstant and Murley score...