Research Topics
| M BottlangSummaryAffiliation: Legacy Health System Country: USA Publications
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Detail Information
Publications
Surgical stabilization of flail chest injuries with MatrixRIB implants: A prospective observational studyMichael Bottlang
Legacy Research Institute, 1225 NE 2nd Ave, Portland, OR 97232, United States
Injury 44:232-8. 2013..This observational study evaluated our early clinical experience with this novel implant system to document if it can simplify the surgical procedure while providing reliable stabilization...
Biomechanics of far cortical lockingMichael Bottlang
Biomechanics Laboratory, Legacy Research and Technology Center, Portland, OR, USA
J Orthop Trauma 25:S21-8. 2011..As such, FCL constructs function as true internal fixators by replicating the biomechanical behavior and biologic healing response of external fixators...
Far cortical locking can improve healing of fractures stabilized with locking platesMichael Bottlang
Legacy Biomechanics Laboratory, 1225 N E 2nd Avenue, Portland, OR 97232, USA
J Bone Joint Surg Am 92:1652-60. 2010..The study tested whether far cortical locking constructs can improve fracture-healing compared with standard locked plating constructs...
Less-invasive stabilization of rib fractures by intramedullary fixation: a biomechanical evaluationMichael Bottlang
Biomechanics Laboratory, Legacy Research and Technology Center, Portland, Oregon 97232, USA
J Trauma 68:1218-24. 2010..We hypothesized that rib splints can provide equivalent fixation strength while avoiding complications associated with Kirschner wires, namely wire migration and cutout...
Anatomically contoured plates for fixation of rib fracturesMichael Bottlang
Legacy Biomechanics Laboratory, Portland, Oregon, USA
J Trauma 68:611-5. 2010..This study implemented for the first time biometric parameters to derive anatomically contoured rib plates. These plates were tested on a range of cadaveric ribs to quantify plate fit and to extract a best-fit plating configuration...
Radiographic determinants of the elbow rotation axis: experimental identification and quantitative validationM Bottlang
Biomechanics Laboratory, Legacy Clinical Research and Technology Center, Portland, Oregon 97232, USA
J Orthop Res 18:821-8. 2000..These results are immediately applicable to fluoroscopic identification of the elbow axis. This technique can be used to increase the accuracy of hinge placement during application of hinged external fixation or distraction arthroplasty...
Introducing the pelvic sling. Pelvic fracture stabilization made simpleMichael Bottlang
Legacy Biomechanics Laboratory, Portland, OR, USA
JEMS 28:84-93. 2003
Emergent management of pelvic ring fractures with use of circumferential compressionMichael Bottlang
Biomechanics Laboratory, Legacy Health System, Legacy Clinical Research and Technology Center, Portland, OR 97232, USA
J Bone Joint Surg Am 84:43-7. 2002
Effects of hybrid plating with locked and nonlocked screws on the strength of locked plating constructs in the osteoporotic diaphysisJosef Doornink
Biomechanics Laboratory, Legacy Research and Technology Center, Portland, Oregon 97232, USA
J Trauma 69:411-7. 2010..This biomechanical study evaluated whether a hybrid bridge plating construct provides greater fixation strength than an all-locked construct in the osteoporotic diaphysis...
Hinged external fixation of the knee: intrinsic factors influencing passive joint motionMark B Sommers
Biomechanics Laboratory, Legacy Clinical Research and Technology Center, Portland, OR 97232, USA
J Orthop Trauma 18:163-9. 2004..Using the axis of rotation previously defined in the literature, however, it was possible to obtain a limited ROM of the knee without placing excessive forces on the periarticular structures...
Evaluation of intramedullary rib splints for less-invasive stabilisation of rib fracturesInga Helzel
Biomechanics Laboratory, Legacy Research and Technology Centre, Portland, OR 97232, USA
Injury 40:1104-10. 2009..This biomechanical study evaluated a novel rib splint designed to replicate the less-invasive fixation approach of Kirschner wires while mitigating their associated complications...
A nonlocking end screw can decrease fracture risk caused by locked plating in the osteoporotic diaphysisMichael Bottlang
Legacy Biomechanics Laboratory, 1225 N E 2nd Avenue, Portland, OR 97215, USA
J Bone Joint Surg Am 91:620-7. 2009..It further investigated the effect of replacing the locked end screw with a conventional screw on the strength of the fixation construct...
Locked plating of distal femur fractures leads to inconsistent and asymmetric callus formationTrevor J Lujan
Biomechanics Laboratory, Legacy Research and Technology Center, Portland, OR 97215, USA
J Orthop Trauma 24:156-62. 2010..It investigated the effects of cortex-to-plate distance, bridging span, and implant material on periosteal callus formation...
Far cortical locking can reduce stiffness of locked plating constructs while retaining construct strengthMichael Bottlang
Legacy Biomechanics Laboratory, 1225 N E 2nd Avenue, Portland, OR 97215, USA
J Bone Joint Surg Am 91:1985-94. 2009..In the present study, we tested whether a novel strategy for stiffness reduction, termed far cortical locking, can significantly reduce the stiffness of a locked plating construct while retaining its strength...
A mobile-bearing knee prosthesis can reduce strain at the proximal tibiaMichael Bottlang
Biomechanics Laboratory, Legacy Research and Technology Center, Portland, OR 97232, USA
Clin Orthop Relat Res 447:105-11. 2006..Our data suggest that the particular mobile-bearing prosthesis tested potentially reduces elevated strain levels in the proximal tibia...
Emergent stabilization of pelvic ring injuries by controlled circumferential compression: a clinical trialJames C Krieg
Biomechanics Laboratory, Legacy Health System, Portland, OR 97232, USA
J Trauma 59:659-64. 2005..CONCLUSIONS: A PCCD can effectively reduce pelvic ring injuries. It poses a minimal risk for overcompression and complications as compared with reduction alternatives that do not provide a feedback on the applied reduction force...
The pelvic fracture stabilization in the fieldMichael Bottlang
Legacy Biomechanics Laboratory, Clinical Research and Technology Center, Portland, OR, USA
Emerg Med Serv 32:126-9. 2003
Pelvic circumferential compression in the presence of soft-tissue injuries: a case reportJames C Krieg
Biomechanics Laboratory, Legacy Health System, Portland, Oregon 97232, USA
J Trauma 59:470-2. 2005
Lag screws for hip fracture fixation: Evaluation of migration resistance under simulated walkingLarry W Ehmke
Biomechanics Laboratory, Legacy Clinical Research and Technology Center, 1225 NE 2nd Ave, Portland, OR 97232, USA
J Orthop Res 23:1329-35. 2005..The results demonstrate that accounting for clinically realistic multiplanar loading vectors significantly affects implant migration, and therefore should be considered when evaluating the fixation strength of hip screw implants...
Operative chest wall fixation with osteosynthesis platesChristine Engel
Clinical Research and Technology Center, Legacy Health System, Portland, Oregon 97212, USA
J Trauma 58:181-6. 2005
A laboratory model to evaluate cutout resistance of implants for pertrochanteric fracture fixationMark B Sommers
Biomechanics Laboratory, Legacy Clinical Research and Technology Center, Portland, OR 97232, USA
J Orthop Trauma 18:361-8. 2004..The novel cutout model can predict differences in cutout resistance between distinct implant designs...
Noninvasive reduction of open-book pelvic fractures by circumferential compressionMichael Bottlang
Biomechanics Laboratory, Legacy Health System, and Oregon Health Sciences University, Portland, Oregon 97232, USA
J Orthop Trauma 16:367-73. 2002..This study derived application parameters with direct clinical implication for noninvasive emergent management of traumatic pelvic ring disruptions...
Stabilization of pelvic ring disruptions with a circumferential sheetTamara Simpson
Department of Orthopaedic Surgery, Oregon Health Sciences University, Portland, Oregon, USA
J Trauma 52:158-61. 2002
A computational technique to measure fracture callus in radiographsTrevor J Lujan
Biomechanics Laboratory, Legacy Research and Technology Center, Portland, OR 97232, USA
J Biomech 43:792-5. 2010..Furthermore, compared to clinician results, the algorithm yielded results with five times less inter-observer variance. This computational technique provides a reliable and efficient method to quantify secondary bone healing response...
Scleral biomechanics in the aging monkey eyeMichaël J A Girard
Ocular Biomechanics Laboratory, Devers Eye Institute, Portland, Oregon 97232, USA
Invest Ophthalmol Vis Sci 50:5226-37. 2009..To investigate the age-related differences in the inhomogeneous, anisotropic, nonlinear biomechanical properties of posterior sclera from old (22.9 +/- 5.3 years) and young (1.5 +/- 0.7 years) rhesus monkeys...
Acquisition of full-field strain distributions on ovine fracture callus cross-sections with electronic speckle pattern interferometryMichael Bottlang
Biomechanics Laboratory, Legacy Clinical Research and Technology Center, 1225 NE 2nd Avenue, Portland, OR 97232, USA
J Biomech 41:701-5. 2008..Such measurements may support validation of computational models and evaluation of experimental results in fracture healing research...
Geometry of human ribs pertinent to orthopedic chest-wall reconstructionMarcus Mohr
Biomechanics Laboratory, Legacy Research and Technology Center, 1225 NE 2nd Avenue, Portland, OR 97232, USA
J Biomech 40:1310-7. 2007..2 mm(2) in anterior rib segments. Results of this biometric rib characterization describe a novel strategy for intraoperative plate contouring and provide a foundation for the development of specialized rib osteosynthesis strategies...
Knee stability after articulated external fixationDaniel C Fitzpatrick
Orthpedic Healthcare Northwest, Eugene, Oregon, USA
Am J Sports Med 33:1735-41. 2005..Conclusion and CLINICAL RELEVANCE: Articulated external fixation of the knee can reduce stress in the cruciate ligaments after multiligament reconstructions and can decrease anteroposterior translation in the cruciate-deficient knee...
Depth-dependent strain of patellofemoral articular cartilage in unconfined compressionOliver K Erne
Biomechanics Laboratory, Legacy Clinical Research and Technology Center, 1225 NE 2nd Avenue, Portland, OR 97232, USA
J Biomech 38:667-72. 2005..Next to provision of a detailed functional characterization of normal diarthrodial joints, this novel experimental approach holds considerable attraction to investigate joint degenerative processes...
Femoral nailing through the trochanter: the reamer pathway indicates a helical nail shapeLarry W Ehmke
Legacy Biomechanics Laboratory, Portland, Oregon, USA
J Orthop Trauma 20:668-74. 2006..Helical nails introduced through a trochanteric entry site may offer reduced bone stresses, ease insertion, and facilitate removal. This in turn may reduce the likelihood of iatrogenic intraoperative fracture...
Modeling neural injury in organotypic cultures by application of inertia-driven shear strainMichael Bottlang
Biomechanics Laboratory, Legacy Research Center, Portland, Oregon 97232, USA
J Neurotrauma 24:1068-77. 2007..9% and 36.7 +/- 14.2%, respectively (p < 0.001). The neural shear injury model delivered a gradable, defined mechanotrauma and thereby provides a novel tool for investigation of biological injury cascades in organotypic cultures...
A surrogate long-bone model with osteoporotic material properties for biomechanical testing of fracture implantsMark B Sommers
Biomechanics Laboratory, Legacy Clinical Research and Technology Center, Portland, OR, USA
J Biomech 40:3297-304. 2007..These results support the need and utility of the OPB surrogate for comparative testing of implants for fixation of femoral shaft fractures in OPB...
