A comparative study of tendinous interconnection in the forearm and hand of human cadavers and live subjects

摘要: Certain complex hand functions such as playing musical instruments, buttoning and writing require the action of long flexor tendons. Repeated movements these tendons cause inflammatory changes resulting in an increase Tendon Cross Sectional Area (TCSA), and, subsequently, tendinous interconnections (occurs approximately 20% general population, commonly between pollicis longus [FPL] index finger digitorum profundus [FDP] - Linburg-Comstock syndrome). Coupled with anatomically congested space at wrist, may compress median nerve carpal tunnel syndrome. This study evaluated prevalence interconnection amongst 200 medical students Cardiff University by a series structured (n=12) controlled setting. The findings were corroborated using Ultrasound Scan (USS) (n=4) Magnetic Resonance Imaging (MRI) (n=1). muscle mass, fibre length, density, angle pennation tendon length ascertained studying hands forearms (n=30) embalmed human cadavers. data was used to determine Physiological (PCSA) calculate relation PCSA TCSA. Simple linear regression established direct TCSA, mass length. A TCSA FPL FDP identified. cross sectional area increases it traverses tunnel. had no bearing on density pennation. USS found be more dynamic sensitive than MRI identifying tenosynovial interconnections, <1 mm thick could recognised. also (i) identified lower percentage (compared literature) randomly selected group individuals, (ii) detected limitation photograpic measurements angles (iii) highlighted disadvantage calculating