PatellaGastropodaMolluscaSnailsChondromalacia PatellaePatellar LigamentCartilage DiseasesPatellofemoral JointPatellar DislocationAnimal ShellsKnee JointLymnaeaNail-Patella SyndromeHelix (Snails)Pacific OceanSeed DispersalCartilage, ArticularDislocationsConus SnailEpsilonproteobacteriaKnee ProsthesisArthroplasty, Replacement, KneeHydrothermal VentsBaysProchloronIndian OceanAnomuraOsteoarthritis, KneeJoint InstabilityFemurIntroduced SpeciesAnimal StructuresFreshwater BiologyTibiaRange of Motion, ArticularPatellofemoral Pain SyndromeArthralgiaMollusk VenomsOsteochondritisReproductive Physiological PhenomenaCoprophagiaTrialkyltin CompoundsPhylogenyEcosystemKnee InjuriesOceanographyLakesQuadriceps MuscleBone WiresOctopodiformesKneeBahamasJoint DiseasesAnatomic LandmarksBiomechanical PhenomenaPopulation DensityFeeding BehaviorLeadZosteraceaeSeawaterMetamorphosis, BiologicalBiomphalariaGanglia, InvertebrateMarine BiologyAminoethylphosphonic AcidHemocyaninPredatory BehaviorLarvaGeographyCadaverFMRFamideTendonsAplysiaBone MalalignmentInvertebratesOrganotin CompoundsFresh WaterMagnetic Resonance ImagingArthroscopyBiological EvolutionFossilsSpecies SpecificityBone Diseases, DevelopmentalDNA, MitochondrialVibrio parahaemolyticus