Musculoskeletal Key

Fig. 1.1 The radial head forms an angle of 165° with the radial neck axis Thanks to this conformation, the radial head is positioned in the frontal plane. The superior…

Fig. 9.1 Synovial sheath of the extensor system, allowing its lubrication and nutrition The tendons are flat, composed by longitudinal fibres and located directly under the skin. 9.2 Topographic Anatomy…

Fig. 3.1 Action of the radioscaphocapitate ligament that can increase the displacement of the distal fragment in fractures of the scaphoid waist This mechanism only occurs in fractures of the…

Fig. 5.1 Mechanism in compression-extension causing Colles’ fractures Traumas in compression-flexion, rarer, causing a palmar displacement. For example, the Goyrand-Smith fracture, where there’s a palmar displacement of the inferior extremity…

Fig. 7.1 The arches of the hand give it a cup shape, favoring the grips When the hand is pressed against a support, it can flatten and thus increase the…

Fig. 10.1 Topographic classification of the flexor tendons according to Verdan and Michon 10.1.1.1 The Long Fingers Zone 1 Located below the distal insertion of the flexor digitorum superficialis, it…

Fig. 13.1 Schematic path of the median nerve It enters the hand at the level of the carpal tunnel, which is an hourglass-shaped inextensible osteofibrous tunnel. Its narrow part is…

Fig. 8.1 The flexion axis of the fingers is perpendicular in extension and becomes oblique in flexion, which leads to an automatic rotation allowing the opposition between the thumb and…

Recent fractures of the scaphoid bone   Phase 1: immobilization Phase 2: pre-consolidation Phase 3: consolidation Rehabilitation Therapeutic goals: immobilization Techniques: Monitoring of the orthosis (stability, comfort, pressure points) PRICE…

Fig. 16.1 Medium palmar aponeurosis It spreads between the thenar and hypothenar aponeurosis, following the palmaris longus. It’s divided in four pre-tendinous strips that change direction at the level of…