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Claude C. Coleman

important in determining the recovery of function, since recovery of sensation and skin resistance coincide to a large extent. I am indebted to Colonel Spurling and Major D. L. Rose for permitting me to observe a demonstration of this test in ulnar nerve lesions at the Walter Reed Hospital. Unfortunately, the apparatus for carrying out these tests is not generally available. A simple test which was thought to have a considerable degree of infallibility in the early stages of nerve reconstruction in the First World War was called the Tinel's sign. By starting some

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W. M. Craig

, as well as electrical stimulation, increases the metabolism and the circulation of the muscles, and keeps them in much better physical condition, and therefore much more receptive to re-inervation. Although it is difficult to measure accurately, it is an accepted fact that those patients who receive physical therapy show evidences of recovery of function much earlier, and the degree of recovery is much greater, than those who do not. Physical therapy should be carefully supervised because atrophied, denervated muscles may be injured by rough methods and fatigue

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W. K. Welch and Margaret A. Kennard

flexor posture had not been observed following seriatim ablation of area 6 may be due to the recovery of function that takes place between two such operations. In this connection the relation of the midline tissue of area 6 should be stressed and Experiment 4 cited. In the first three experiments an effort was made to remove all of area 6 including the tissue from the midline surface to the cingulate sulcus. When the striking picture of flexion and tremor appeared in three successive animals with this lesion it was felt that a smaller lesion might have the same

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Paul Weiss

Operationslehre. Stuttgart : F. Enke , 1920 , xvi: 744 pp. Vulpius , O., and Stoffel , A. Orthopädische Operationslehre. Stuttgart: F. Enke , 1920, xvi: 744 pp. 174. Ward , A. A. , and Kennard , M. A. Effect of cholinergic drugs on recovery of function following lesions of the central nervous system in monkeys. Yale J. Biol. Med. , 1942 , 15 : 189 – 228 . Ward , A. A., and Kennard , M. A. Effect of cholinergic drugs on recovery of function following lesions of the central nervous system in monkeys. Yale J. Biol. Med

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I. M. Tarlov and J. A. Epstein

somewhat greater with homografts. It is of interest, however, that of 13 stored homografts, which were kept in serum for periods of time varying from 24 to 72 hours, complete absorption did not occur in a single instance and, in general, the degree of thinning of the graft was rather moderate. Complete recovery of function took place in 2 dogs with 48-hour-old homografts. This experience seems confirmatory of that of Gutmann and Sanders 6 that “stored homografts gave a distinctly better recovery than fresh homografts.…” These authors stored the grafts in Ringer

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W. K. Livingston, E. W. Davis and K. E. Livingston

affected nerve degenerate peripheral to the injury. The axons show no ability to regenerate across the injured segment until all the local damage has been repaired. When the repair process is complete, the axons begin to grow down the distal nerve trunk, progressing at a rapid rate. Because there has been no distortion of the intra-neural pattern by the injury, each fiber eventually establishes connection with its original end-organ. Under these circumstances, as might be anticipated, the recovery of function in these experimental animals approximates the normal. In fact

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James C. White and Hannibal Hamlin

has had no further recovery. This single failure of a nerve to regenerate after an apparently satisfactory sleeve suture serves to emphasize the importance of keeping every case under personal observation until there has been a good recovery of function. Otherwise the use of these sleeves is not justified. In all the other cases, in which there has been an adequate period of observation, it has been our impression that these men have done as well as, or better than, those with simple suture in whom no sleeves were used. The following examples are quoted to bring out

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Walter G. Haynes

laminectomy allowed complete recovery of function. His mental status when discharged was good. He was a socially acceptable individual. One other patient had an incompletely transected dorsal spinal cord, although he recovered from his severe brain wound. The other patient died of a severe transventricular brain wound. His cord had been transected. MORTALITY The mortality and infection rate of brain wounds has been more than halved since the last war. It has been materially reduced since the beginning of this war. A smaller series might portray a lower or higher

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George T. R. Fahlund

INTRODUCTION S uture of severed peripheral nerves as early as possible after wounding has been one of the chief objectives in neurosurgery during World War II. This objective has been achieved in the large percentage of peripheral nerve injuries when permissible under the exigencies of war. As a result of early careful nerve suture many cases of excellent regeneration and recovery of function have been followed in the various Neurosurgical Centers in the Zone of the Interior. One group, however, has been neglected in early nerve suture, and that is the

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Paul Weiss and A. Cecil Taylor

described previously. 8 The empty part of the tube was then filled with blood or some other medium to be tested, guarding against the introduction of air bubbles. Experience has shown that fillings of Ringer's solution or blood plasma lead to fibrosis with obstruction of nerve regeneration. Therefore, only gaps filled with whole blood will be considered here. Seven rats thus operated upon were biopsied after from 4 to 17 weeks. The experimental nerves were studied histologically (Bodian's silver impregnation). In the older cases, recovery of function had occurred but