The suprascapular ligament seems to serve no defined function in the human. A comparative study was undertaken to elucidate its function. The suprascapular region was dissected in species representing seven existing primate families and six subprimate families. A striking dichotomy of pattern was observed. In the New World primates, the suprascapular ligament appeared to be continuous with the coracoclavicular ligament; the former merely served to increase the area of bony attachment of the coracoclavicular ligament. In the Old World monkeys and subprimate mammals, the suprascapular ligament was entirely absent. The human anatomy was comparable to that found in the New World primates. This dichotomy of pattern seems to be related to the function of the upper extremity in the different classes of mammals.
The clinical syndrome of suprascapular entrapment neuropathy is described and three illustrative cases are discussed. Diagnostic criteria for this entity are outlined.
✓ The effect of prophylactic antibiotics in preventing meningitis are reviewed in 58 cases of acute traumatic cerebrospinal fluid (CSF) fistula. A summary of the literature plus data from the present series show a total of 402 cases of acute traumatic CSF fistula; there were 46 cases (14%) of meningitis in 325 patients receiving expectant antibiotics, and four cases (5%) in 77 patients treated without antibiotics. No statistically significant conclusion can be drawn from these data regarding the usefulness of expectant antibiotics in acute traumatic CSF rhinorrhea or otorrhea.
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