0000000000447742

AUTHOR

Gerd Diederichs

showing 2 related works from this author

Three-dimensional distribution of trabecular bone density and cortical thickness in the distal humerus

2008

One major barrier to osteosynthesis in distal humeral fractures is poor bone quality. This study was an attempt to measure the bone quality in the distal humerus.We measured the distribution of total bone mineral density (BMD), trabecular BMD (tBMD), and cortical thickness (CTh) in the distal humerus using peripheral quantitive computed tomography. Four slices in the infracondylar, supracondylar, and distal disphyseal regions of 25 human cadaver humeri were investigated.Total BMD decreased continuously from the distal diaphysis to the trochlea. Within the infracondylar region, the capitellum was the region of lowest tBMD and CTh (P.001). Measurements in anterior regions were higher than in …

AdultMaleHumeral FracturesSensitivity and SpecificityAbsorptiometry PhotonImaging Three-DimensionalSex FactorsBone DensityCadaverElbow JointImage Interpretation Computer-AssistedCadaverConfidence IntervalsmedicineHumansOrthopedics and Sports MedicineHumerusQuantitative computed tomographyAgedProbabilityAged 80 and overBone mineralOsteosynthesismedicine.diagnostic_testbusiness.industryAge FactorsReproducibility of ResultsImplant failureGeneral MedicineAnatomyHumerusMiddle AgedDiaphysismedicine.anatomical_structureBone TrabeculaeFemaleSurgeryDiaphysesTomography X-Ray ComputedElbow InjuriesbusinessEpiphysesJournal of Shoulder and Elbow Surgery
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A biomechanical evaluation of methods of distal humerus fracture fixation using locking compression plates versus conventional reconstruction plates.

2004

OBJECTIVES To examine the biomechanical behavior of 2 techniques of double-plate osteosynthesis for fractures of the adult distal humerus using conventional reconstruction plates and locking compression plates. DESIGN Basic science study. SETTING Experimental in vitro study. PATIENTS/PARTICIPANTS Forty fresh-frozen human distal humeri specimens. INTERVENTION Four matched groups with 10 humeri each, median age 74 years (46-95), were created using similar bone mineral density values. Two standard configurations of double-plate osteosynthesis (dorsal or 90 degrees configuration) with either conventional reconstruction plates or locking compression plates were studied for biomechanical properti…

medicine.medical_specialtyHumeral Fracturesmedicine.medical_treatmentOsteotomyFracture Fixation InternalFracture fixationBone plateMaterials TestingmedicineHumansOrthopedics and Sports MedicineHumerusAgedBone mineralOrthodonticsAged 80 and overOsteosynthesisbusiness.industryBiomechanicsStiffnessGeneral MedicineEquipment DesignMiddle AgedSurgeryBiomechanical Phenomenamedicine.anatomical_structureSurgerymedicine.symptombusinessBone PlatesJournal of orthopaedic trauma
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