Showing papers by "Lenox Hill Hospital published in 1983"

Hand and forearm strength and its relation to tennis

Abstract: Eight expert tennis players and 12 nontennis playing controls were studied to determine the relationship between dominant and minor extremities in regard to hand and forearm isometric strength The results revealed that overall strength, including wrist extension, was significantly greater (P 001) in the dominant arm in both groups The tennis players were distinguished from the controls by significantly increased strength of metacarpophalangeal joint extension of the fingers on the dominant side Examination of a group of 16 "tennis elbow" sufferers demonstrated no significant extensor strength differential in the dominant arm, with no reports of pain during the testing procedure The increased strength of hand extension in elite tennis players may be significant in explaining the observed rarity of "tennis elbow" in these individuals

Arthroscopic meniscectomy: A follow-up report:

Abstract: Eighty patients who underwent arthroscopic meniscectomy were interviewed and examined 12 to 24 months postoperatively. Twenty-seven (34%) of the patients rated their knees as normal, and 46 (58%) of the patients rated their knees as improved. Seventy-nine percent of the patients were pain free at the time of followup. Patients with poor results were likely to have significant degenerative disease or instability. Sixty-five percent of the patients returned to their original sport. Factors limiting patients' return to sports after meniscectomy included instability, patellofemoral disease, and degenerative arthritis.

Jugular venous pulsations as the sole landmark for percutaneous internal jugular cannulation

Abstract: Successful internal jugular venous cannulations were obtained in 210 of 212 consecutive patients using the venous pulsations as the sole landmark with which to locate the vein. Jugular venous blood was aspirated on the initial insertion of a 23-gauge seeker needle in 87.7% of the patients and successful passage of eithera 14-or 8-French cannula occurred on the first attempt in 82.5% of patients. The ease, success and relative safety of this technique compare favourably with other techniques. The carotid artery was punctured in three patients (1.5%).

Tongue-movement artifacts in the electroencephalogram.

Abstract: The ability of electrodes placed in the usual scalp locations to detect potential changes due to tongue movement has long been known. In spite of this, however, actual illustrations of the \"glossokinetic artifact\" are rarely encountered, 1-3 and may not be indexed as such. Many otherwise comprehensive and authoritative textbooks and manuals do not even mention it. 4,5 We therefore considered it appropriate at this time to investigate the phenomenon, to redefine its characteristics and to test the likelihood of its being seen under routine laboratory conditions. The tongue is said to form a dipole, with the tip negative in relation to the base. Movement of this dipole results in potential changes easily recorded from electrodes placed on the face and scalp, in a manner analogous to the recording of changing field potentials resulting from rotation of the dipole formed by the \"corneo-retinal\" potential of the eye. Eyemovement artifacts are very common, and not infrequently cause prablems in interpretation of the tracing. The greater complexity of tongue movement, however, lessens the likelihood of troublesome wave forms appearing in the scalp tracing, as does, perhaps, the greater distance of the tongue from the scalp electrodes. Studies performed with a volunteer subject showed that the movements most likely to be detected are rapid ones which occur in the anteroposterior direction, as in repetition of the syllable \"Ia.\" Lateral, rotatory, and swallowing movements may also be detected, but are less clear, and more likely to be combined with, and obscured by muscle artifact. In recordings made during production of the \"Ia la\" sound, smoothly rounded 200-300 millisecond waves appear in frontal and temporal derivations, with franto-polar electrodes being negative in relation to the more posteriorly placed frontal and anterior temporal electrodes. These waves are in opposite phase, as compared to the waves of similar appearance which may be induced by small-amplitude upward eye movements occurring with blinking under eyes-closed conditions. These phase relationships may not be clearly demonstrated unless infraorbital electrodes are used, as well as electrodes over the chin and angle of the mandible. Voluntary lateral and curling movements of the tongue were far less likely to result in identifiable patterns in the scalp derivations. Figure 1 is a recording made while the volunteer subject was examined with eyes closed. The la la movement induced 50 microvolt waves in anterior derivations. The illustration shows the opposite polarity of the activity induced in the same derivations by blinking. The illustration also indicates the confirmation of the eye movement artifact by recording across the eye from infraorbital to supraorbital electrodes, and shows reversal of polarity at the upper lip electrode, with a serial adjacent-electrode montage from the forehead to the chin. One hundred consecutive patients were tested for presence of the glossokinetic artifact

Post-auricular open drainage to reduce postoperative bleeding in rhytidectomy.

Abstract: In 200 patients undergoing rhytidectomy with and without additional procedures, 14 patients experienced postoperative hematoma, only 1 of which required corrective surgery under general anesthesia. Post-auricular open drainage was associated with a low rate of hematoma, i.e., 2.6% in 117 female patients in whom the drainage procedure was used. Factors affecting the probability of experiencing hematoma include male sex, elevated blood pressure, and the absence and type of drainage.