Colorectal SurgeryRectumRectal DiseasesColorectal NeoplasmsColectomyColonic DiseasesDigestive System Surgical ProceduresAnastomotic LeakPremedicationSurgical Procedures, ElectiveColonLaparoscopyHand-Assisted LaparoscopySurgical Wound InfectionPostoperative ComplicationsSurgical SpongesCatharticsPerioperative CareCefotetanAnastomosis, SurgicalPreoperative CareEmbalmingPostoperative CareInfusions, IntralesionalLength of StayTreatment OutcomeProspective StudiesRectal NeoplasmsIntraoperative CareLearning CurveDiverticulitisIleusIntraoperative PeriodRoboticsPostoperative PeriodSurgical StaplingRetrospective StudiesAdenomaAntibiotic ProphylaxisTime FactorsFluid TherapyIntraoperative ComplicationsColonoscopyMetronidazoleFollow-Up StudiesRisk FactorsColorectal Neoplasms, Hereditary NonpolyposisSensitivity and SpecificityRecovery of FunctionPain, PostoperativeClinical CompetenceColonic PolypsAdenocarcinomaColonic NeoplasmsStatistics, NonparametricDouble-Blind MethodChi-Square DistributionPrognosisBariatric SurgeryNeoplasm StagingSigmoidoscopyTumor Markers, BiologicalGeneral SurgeryDiagnostic ErrorsAdenomatous PolypsFluorouracilDiagnostic Tests, RoutineLiver Neoplasms