APatellar ligamentJoint capsuleMedial meniscusPopliteus tendonLateral meniscusTransverse ligament of the kneeInfrapatellar fat
Fig. 6.74 Meniscal injury and repair. A. Sagittal MRI of a knee joint showing tear of the medial meniscus. B. Coronal MRI of a knee showing a truncated lateral meniscus after partial meniscectomy to treat a tear.
Fig. 6.75 Synovial membrane of the knee joint and associated bursae. A. Superolateral view; patella and femur not shown. B. Paramedial sagittal section through the knee.
Fig. 6.76 Fibrous membrane of the knee joint capsule. A. Anterior view. B. Posterior view.
Fig. 6.77 Collateral ligaments of the knee joint. A. Lateral view. B. Medial view. C. Normal knee joint showing the patellar ligament and the fibular collateral ligament. T1-weighted magnetic resonance image in the sagittal plane. D. Normal knee joint showing the tibial collateral ligament, the medial and lateral menisci, and the anterior and posterior cruciate ligaments. T1-weighted magnetic resonance image in the coronal plane.
Fig. 6.78 Cruciate ligaments of the knee joint. Superolateral view.
Fig. 6.79 Knee “locking” mechanism.
Medial rotation of femur on tibia tightens ligamentsFlat surface offemoral condylesis in contact withtibia and stabilizesjointLine of center of gravity isanterior to knee joint andmaintains extension
Fig. 6.80 Anastomoses of arteries around the knee. Anterior view.
Femoral arteryAdductorhiatusDescendinggenicular arteryAdductormagnusSaphenousbranchSuperior medialgenicular arteryPoplitealarteryInferior medialgenicular arteryPosteriortibial arteryAnteriortibial arteryInterosseousmembraneRecurrent branchof anterior tibialCircumflexfibular arteryInferior lateralgenicular arterySuperior lateralgenicular arteryDescending branch of lateral circumflex femoral artery
Fig. 6.81 Sagittal MRI of knee joint showing rupture of the anterior cruciate ligament.
Fig. 6.82 Tibiofibular joint.
Fig. 6.83 Popliteal fossa. A. Boundaries. B. Nerves and vessels. C. Superficial structures.
ABCLinea asperaBiceps femoris muscle(short head)Biceps femorismuscle(long head)PoplitealfossaPlantarismuscleLateral head ofgastrocnemiusmusclePopliteusmuscleMedial head ofgastrocnemiusmuscleSemitendinosusmuscleSemimembranosus muscleAdductorhiatusAdductor magnus muscleSciatic nerveTibial nerveSmallsaphenousveinSmallsaphenousveinCommonfibular nervePopliteal arteryPopliteal veinFemoral veinFemoral arteryPosteriorcutaneousnerve of thighPosteriorcutaneousnerve of thighLateralNerveVeinArteryMedial
Fig. 6.84 Posterior view of leg; cross section through the left leg (inset).
Fig. 6.85 Tibia and fibula. A. Anterior view. B. Posterior view. C. Cross section through shafts. D. Posteromedial view of distal ends.