Median nerve compression in the carpal tunnel--functional response to experimentally induced controlled pressure
Controlled external compression was applied to the medium nerve of 16 volunteer subjects. Tissue fluid pressure in the carpal canal was monitored with a wick catheter and pressures of 30, 60 and 90 mm Hg were induced for periods varying from 30 to 90 minutes.l Sensory and motor conduction and two-point discrimination were continuously monitored. Tissue compression at 30 mm Hg caused mild neurophysiological changes and symptoms of hand paresthesias. Compression at both 60 and 90 mm Hg induced a rapid, complete sensory conduction block which consistently preceded a motor block by 10 to 30 minutes. Frequently, two-point discrimination remained normal until the last stages of preserved sensory fiber conduction. In three cases, a modification of the model utilizing an arm tourniquet, demonstrated that ischemia rather than mechanical deformation was the primary cause of the functional deterioration. It was concluded that there is a critical pressure level between 30 and 60 mm Hg where nerve fiber viability is acutely jeopardized.
Neurographic studies before, after, and during operation for median nerve compression in the carpal tunnel
Carpal tunnel syndrome: correlations between pressure measurement and intraoperative electrophysiological nerve study
Involvement of thin afferents in carpal tunnel syndrome: evaluated quantitatively by argon laser stimulation
Dextrose-induced subsynovial connective tissue fibrosis in the rabbit carpal tunnel: A potential model to study carpal tunnel syndrome?
Serial overnight recordings of intracarpal canal pressure in carpal tunnel syndrome patients with and without wrist splinting
Postoperative changes of carpal canal pressure in carpal tunnel syndrome: a prospective study with follow-up of 1 year
Carpal tunnel pressure alters median nerve function in a dose-dependent manner: a rabbit model for carpal tunnel syndrome
Changes in geometry of the finger flexor tendons in the carpal tunnel with wrist posture and tendon load: an MRI study on normal wrists
Comparison of range-of-motion constraints provided by prefabricated splints used in the treatment of carpal tunnel syndrome: a pilot study
Testing sensibility, including touch-pressure, two-point discrimination, point localization, and vibration
Carpal tunnel syndrome assessment with US: value of additional cross-sectional area measurements of the median nerve in patients versus healthy volunteers
Nerve compression injury and increased endoneurial fluid pressure: a "miniature compartment syndrome"
What is the role of Semmes-Weinstein monofilament testing in the diagnosis of electrophysiologically graded carpal tunnel syndrome?
Intraoperative dynamic pressure measurements in carpal tunnel syndrome: Correlations with clinical signs
Release of the transverse carpal ligament alone is associated with elevated pressure beneath the distal volar forearm fascia in a cadaver model of carpal tunnel syndrome
Vascular pathologic changes in the flexor tenosynovium (subsynovial connective tissue) in idiopathic carpal tunnel syndrome
Sonographic measurement of cross-sectional area of the median nerve in the diagnosis of carpal tunnel syndrome: correlation with nerve conduction studies
Effect of grip type, wrist motion, and resistance level on pressures within the carpal tunnel of normal wrists
Carpal tunnel syndrome: comparison of intraoperative structural changes with clinical and electrodiagnostic severity
An experimental pain model to investigate the specificity of the neurodynamic test for the median nerve in the differential diagnosis of hand symptoms
Clinical outcomes of surgical release among diabetic patients with carpal tunnel syndrome: prospective follow-up with matched controls
Intraoperative monitoring of ulnar nerve function during replacement of the rheumatoid elbow via the lateral approach
Effects of 90 min of manual repetitive work on skin temperature and median and ulnar nerve conduction parameters: a pilot study in normal subjects
A vertical mouse and ergonomic mouse pads alter wrist position but do not reduce carpal tunnel pressure in patients with carpal tunnel syndrome
Upper Limb Neurodynamic Test 1 and symptoms reproduction in carpal tunnel syndrome. A validity study
Wheelchair ergonomic hand drive mechanism use improves wrist mechanics associated with carpal tunnel syndrome
Median sensory distal amplitude and latency: comparisons between nonexposed managerial/professional employees and industrial workers
Effects of increased systemic blood pressure on the tissue fluid pressure threshold of peripheral nerve
Correlation of segmental carpal tunnel pressures with changes in hand and wrist positions in patients with carpal tunnel syndrome and controls
Pre- and postoperative Guyon's canal pressure change in endoscopic carpal tunnel release: correlation with transient postoperative Guyon's canal syndrome
Pressure changes in the medial and lateral plantar and tarsal tunnels related to ankle position: a cadaver study
Preliminary evaluation of a sensory and psychomotor functional test battery for carpal tunnel syndrome: Part 1--Confirmed cases and normal subjects
Toward standardized patient positioning to avoid peripheral nerve injury during laparoscopic colorectal surgery: Application of a protocol and study of the resulting relationship between total rotation time and contact pressure at the shoulder
Comparison of single-dose radial extracorporeal shock wave and local corticosteroid injection for treatment of carpal tunnel syndrome including mid-term efficacy: a prospective randomized controlled trial
Tibial nerve decompression in patients with tarsal tunnel syndrome: pressures in the tarsal, medial plantar, and lateral plantar tunnels
A comparison of flexor tenosynovectomy, open carpal tunnel release, and open carpal tunnel release with flexor tenosynovectomy in the treatment of carpal tunnel syndrome
Personal factors and blood volume movement in causation of median neuropathy at the carpal tunnel. A commentary
Analysis of occlusal stresses transmitted to the inferior alveolar nerve by multiple threaded implants
Carpal tunnel syndrome in patients with arteriovenous fistula for haemodialysis: A narrative review of the current literature
The effect of wheelchair propulsion style on changes in time spent in extreme wrist orientations after a bout of fatiguing propulsion
Position of the wrist associated with the lowest carpal-tunnel pressure: implications for splint design
Diagnostic potential of ultrasound in carpal tunnel syndrome with different etiologies: correlation of sonographic median nerve measures with electrodiagnostic severity
Short-term results of endoscopic (Okutsu method) versus palmar incision open carpal tunnel release: a prospective randomized controlled trial
Effect of Force, Posture, and Repetitive Wrist Motion on Intraneural Blood Flow in the Median Nerve.
A non-invasive technique for evaluating carpal tunnel pressure with ultrasound vibro-elastography for patients with carpal tunnel syndrome: A pilot clinical study.
Median nerve travel and deformation in the transverse carpal tunnel increases with chuck grip force and deviated wrist position.
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