TST36 stapling for rectocele and hemorrhoidal prolapse - early results of the prospective German multicenter study.

The aim of the study was to evaluate the safety and feasibility of stapled transanal procedures performed by a 36 mm stapling device, the so-called TST36 stapler. From September 2013 to June 2014 a prospective observational study was carried out by 8 proctology centers in Germany. The Cleveland Clinic Incontinence Score (CCIS) for incontinence and the Altomare ODS score were determined preoperatively.

A comparison of compressive force generation by plating and intramedullary nailing techniques in a transverse diaphyseal humerus fracture model.

Background: The null hypothesis to be tested in this study is that the compression forces generated with a novel compressible intramedullary nail are not different from compression plating techniques.

Methods: A custom sensor was used to measure the compressive force at a transverse midshaft humeral sawbone osteotomy (OTA 12-A3.2) in four groups.

Can a new behaviorally oriented training process to improve lifting technique prevent occupationally related back injuries due to lifting?

Study Design: A prospective randomized control trial.

Objective: To determine the degree to which a new behavior-based lift training program (LiftTrainer; Ascension Technology, Burlington, VT) could reduce the incidence of low back disorder in distribution center jobs that require repetitive lifting.

Summary Of Background Data: Most studies show programs aimed at training lifting techniques to be ineffective in preventing low back disorders, which may be due to their conceptual rather than behavioral learning approach.

Effect of lateral meniscus allograft on shoulder articular contact areas and pressures.

The objective of this study was to determine the effect of a lateral meniscus allograft on the articular contact area and pressures across the glenohumeral joint under compressive loads of 220 N and 440 N. Eight fresh-frozen shoulders were used, and contact areas and pressures were determined with a Tekscan flexible tactile force sensor. Testing conditions included a normal glenohumeral joint and one interposed with a lateral meniscus allograft.

Three-dimensional in vivo measurement of lumbar spine segmental motion.

Study Design: Fifteen asymptomatic volunteers were externally rotated and CT scanned to determine lumbar segmental motion.

Objectives: To measure three-dimensional segmental motion in vivo using a noninvasive measurement technique.

Summary Of Background Data: Spinal instability has been implicated as a potential cause of low back pain, especially, axial rotational instability.

Tibiofemoral contact mechanics after serial medial meniscectomies in the human cadaveric knee.

Background: There is no consensus regarding the extent of meniscectomy leading to deleterious effects on tibiofemoral contact mechanics.

Hypothesis: The meniscus aids in optimizing tibiofemoral contact mechanics, increasing contact area, and decreasing contact stress.

Study Design: Controlled laboratory study.

Enhancement of stability following anterior cervical corpectomy: a biomechanical study.

Study Design: An in vitro biomechanical study of various reconstructive techniques following decompression of the spondylotic cervical spine. OBJECTIVE.: To evaluate the biomechanical stability of anterior cervical plate fixation following three strategies of decompression for multilevel cervical spondylosis (three levels) of the cervical spine: three level discectomy, single corpectomy and discectomy, and a two-level corpectomy.

Biomechanical comparison of cervical spine reconstructive techniques after a multilevel corpectomy of the cervical spine.

Study Design: An in vitro biomechanical study of several reconstructive techniques after a two-level cervical corpectomy.

Objectives: To evaluate, compare, and quantitate the stability of several reconstructive strategies (anterior, posterior, or anterior/posterior with or without instrumentation) after a multilevel cervical corpectomy.

Summary Of Background Data: Several clinical and biomechanical studies have questioned the stability of stand-alone long-segment anterior plate fixation after a multilevel (>or=2) corpectomy.