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Biomedical subjects

F Nahai

Publications and source records attributed to F Nahai.

17 recordsLinked to original sources
PubMed1979

Sixty latissimus dorsi flaps.

In clinical experiences with 60 cases, we have found the latissimus dorsi to be a reliable and versatile flap. We describe its use for a functional muscle transfer (in restoration of elbow flexion and repair of abdominal wall defects), for arm and shoulder coverage, for breast reconstruction, and as a free flap.

Abdominal Muscles↗
PubMed1979

Experiences with the tensor fascia lata flap.

Our experience with 60 TFL flaps is reviewed. The anatomy and the arcs of rotation of this flap are described. Our clinical experience--particularly in reconstruction of the groin and abdominal wall, and in free flap transfers--has been detailed, including the use of a free osteomyocutaneous sensory TFL flap for reconstruction of the heel.

Abdominal Muscles↗
PubMed1978

Percutaneous recordings from peripheral nerves (preliminary communication).

The recently developed technique provides a precise assessment of neutral activity via intrafascicular axonal recordings from human peripheral nerves. With this technique it is possible to record from cutaneous afferent fibers. Receptive fields belonging to cutaneous afferents are readily perceived by patients due to orthodromic conduction of activity induced by mechanical activation of appropriate fibers. Temporal synchrony between peripherally applied stimuli and the proximally placed recording electrode assure continuity of the nerve. By sampling axonal activity from cutaneous fasciles at regular intervals following trauma of undefined etiology, a definite appraisal can be made concerning the integrity of a nerve and, hence, the need for surgical intervention. This is a preliminary report of the first such applications of this technique.

Adult↗
PubMed1978

The tensor fascia lata musculocutaneous flap.

The tensor fascia lata (TFL) muscle, together with the overlying skin of the anterolateral thigh, makes a reliable musculocutaneous unit. It can be lengthened safely by taking the fascia lata and the skin of the anterolateral mid and lower thigh to within 8 cm of the knee. The skin of the longer flap is supplied by large perforating musculocutaneous arteries, the terminal branches of the vascular pedicle of the muscle. The shorter flap can easily be transposed over the trochanteric area, while the larger flap will cover not only the trochanter but also the ischial and sacral areas. The flap serves equally well as a transposition, island, or free flap. The anatomical and vascular basis of the flap is presented, together with its application in 21 patients. Possible further applications of the flap, including anterior rotation, are discussed.

Fascia↗
PubMed1978

The tensor fascia lata myocutaneous free flap.

The tensor fascia lata muscle and its overlying skin provide a reliable myocutaneous unit containing a large amount of soft tissue for a free flap transfer. Its anatomy is outlined, and the operative technique for transfer is detailed in a case of chronic stasis ulcer of the lower leg.

Fascia↗
PubMed1978

Electromyographic biofeedback in the reeducation of facial palsy.

Electromyographic biofeedback techniques have been successfully applied in various neuromuscular disorders. Data on the use of this technique in reeducation of facial paralysis after initial surgical correction are scarce. The authors have developed a treatment program consisting of EMG biofeedback with the use of the Basmajian-Emory myotrainer. Two case reports are presented which show successful results after a three month training period.

Adult↗
PubMed1978

Microvascular surgery in avulsive trauma to the external ear.

Ears amputated as part of scalping injuries have a good chance of survival in favorable circumstances. Survival of subtotally amputated ears is probably enhanced materially by arterial repairs. One experience with a completely avulsed ear that was replaced with two arterial repairs and no vein repairs showed initial perfusion, but eventually failed.

Adult↗
PubMed1977

Objective determinations of sensibility in the upper extremity. Part I. Median nerve sensory conduction velocities.

Distal sensory conduction velocities were determined in 109 normal median nerves. A significant decrease in sensory conduction velocity was noted with increasing age. Latencies increased with age but this relationship was not significant in men. Variables which contribute to the wide range of normal conduction velocities are discussed, and the need for each clinician to establish his own testing procedure is stressed. An additional method for assessing sensory function is suggested.

Adult↗
PubMed1977

Objective determinations of sensibility in the upper extremity. Part II. Application of cutaneous stimuli in control subjects.

Sensitization statements were read to two groups of normal subjects to determine whether quantifiable thresholds for pressure, electrical, or tactile stimuli could be altered. Significant reductions in perception thresholds were observed for pressure and digital pulsed stimulation, but not for stimulation to the discomfort threshold, or two point discrimination. These data seem to suggest that increased sensitization is related to the ease of stimulus applications and the comparative simplicity of sensory processing.

Adult↗
PubMed1977

Objective determinations of sensibility in the upper extremity. Part III. Application of cutaneous stimuli in patients with peripheral nerve lesions.

Quantitative values for pressure, electrical, and two-point touch stimulation were examined in five patients with peripheral nerve injuries of the ulnar or median nerves. Analyses of profiles generated for each stimulus application in each patient participating in this preliminary study suggest that, following the reading of a sensitization statement, pressure and electrical shock threshold values are clearly reduced compared to similar measurements in the unaffected limb. Values obtained prior to the statement indicated progressively reduced thresholds, however. Changes in sensation appear to precede significant improvements in sensory nerve conduction velocity. Limitations in the sensory testing techniques as well as suggestions for improving its validity are discussed.

Adult↗
PubMed1977

Factors involved in disruption of intestinal anastomoses.

Bowel anastomoses, as performed on 181 dogs, were studied: (1) by interposing segments of colon into small bowel and vice versa, (2) by comparing clean anastomoses to those contaminated by feces before and after suturing, (3) with and without parenteral preoperative antibiotic, and (4) with and without coaptation of an inverted serosa. All animals with a timed sacrifice as well as an unexplained death had careful autopsy. Results demonstrated no difference in the healing capacity of large (91%) versus small (92%) intestine under identical circumstances. Intraluminal bacteria were of importance only if spillage caused contamination during operation and thereby subsequent infection of the peritoneal surface of the suture line. Peritonitis preceded all 28 leaks, yet the converse never occurred. Likelihood of a complicating peritonitis (67%) and thus an anastomotic leak (24%) was significantly reduced through the preoperative administration of prophylactic cefazolin (19 and 4%, respectively). A "serosal seal" also appeared important in obviating suture line disruption. Our data emphasize the value of an inverted and serosal lined anastomosis, bowel preparatory measures, prophylactic antibiotic, and the disruptive action of local bacterial peritonitis.

Animals↗