“…Brachial plexus palsy (also known as ruck sack/backpack palsy) is a debilitating injury associated with heavy load carriage activities (Charteris, 2000;Corkill, Liberman, & Taylor, 1980;Knapik et al, 2004;Makela, Ramstad, Mattila, & Pihlajamaki, 2006;Maurya, Singh, Bhandari, & Bhatti, 2009) and, as such, most reported cases occur in military personnel (Wilson, 1987). The mechanism of brachial plexus palsy has been postulated as a traction or compression injury to the C5 and C6 nerve routes caused by backpack straps exerting a heavy downward pressure in the region of the upper trunk of the brachial plexus (Corkill et al, 1980;Drye & Zachazewski, 1996;Kawabata, 2000;Knapik et al, 2004;Makela et al, 2006;Reid, 1992).…”