Femoral NerveFemoral NeuropathyNerve BlockSciatic NerveQuadriceps MusclePudendal NerveAnesthetics, LocalObturator NerveNerve RegenerationPeripheral NervesNerve TransferKneeArthroplasty, Replacement, KneeOptic NerveNerve FibersPain, PostoperativeUreterostomyNerve Compression SyndromesHip ContracturePsoas MusclesBupivacaineAnalgesia, Patient-ControlledParalysisCystostomyOxycodonePatellofemoral JointElectric StimulationAmidesElectrodes, ImplantedThighNerve EndingsFemoral FracturesSural NerveMedian NerveFacial NerveNerve CrushPeripheral Nerve InjuriesPirinitramideTibial NerveUlnar NervePain MeasurementH-ReflexMotor NeuronsHipElectromyographyUltrasonography, InterventionalInfusion PumpsCompartment Syndromes