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Biomedical subjects

P C Wing

Publications and source records attributed to P C Wing.

9 recordsLinked to original sources
PubMed1991

Back pain and spinal changes in microgravity.

We believe that investigations into back pain and spinal changes in microgravity will contribute significantly to our knowledge and understanding of factors that cause back pain and the influence of spinal cord distraction on sensory and autonomic dysfunction. This information may have clinical implications for the treatment and rehabilitation of patients with spinal cord injury, for the care of patients during and after corrective spinal surgery, for the care and treatment of patients with chronic pain syndromes, and may potentially provide us with the opportunity to learn more about demyelinating diseases.

Back Pain↗
PubMed1991

Percutaneous suction aspiration for osteomyelitis. Report of two cases.

The nucleotome, a recently developed instrument for percutaneous disc excision, was used for suction aspiration in two cases of osteomyelitis of the spine. The technique obtained significant amounts of pus, serosanguinous material, and tissue, which provided adequate samples for histologic examination and culture. Both patients obtained immediate relief of pain after a significant amount of pus and infected material was removed. Appropriate antibiotics were used for subsequent control of the infections. The risk and morbidity of this technique are no greater than with conventional needle biopsy.

Adult↗
PubMed1988

Washout of local anesthetic during arthroscopy.

The recommended dose of lidocaine is often insufficient to obtain adequate local anesthesia when performing knee arthroscopy, particularly in bilateral procedures. A prospective study was conducted to identify the quantity of anesthetic washed out of the knee by irrigation solution. Fourteen patients had knee arthroscopy performed with local anesthetic, either for diagnosis or reparative surgery. Anesthesia was obtained using 20 ml of 0.5% lidocaine injected intraarticularly at the beginning of each procedure, augmented in four cases by an additional 20 ml of 0.5% lidocaine during the procedure. Each of three portals was also infiltrated with bupivacaine 0.25% with epinephrine. Analysis of the normal saline effluent from knee irrigation during the procedure revealed that washout of lidocaine was 50% by weight (range, 42-66%). This percentage did not vary with age, operative time, or quantity of irrigation. We conclude that: (a) safe local anesthesia can be obtained in the average patient with less than the maximum dose of lidocaine, and (b) because of the 50% washout, the safe dose of lidocaine can be increased substantially if needed.

Adult↗
PubMed1988

Closed reduction of dislocations of the lower cervical spine.

Dislocation of the lower cervical spine (C3-T1) is associated with a high incidence of neurologic injury. Attempted closed reduction by skeletal traction with weights ranging up to 50 lb (23 kg) is considered standard care in North America, although these attempts are often unsuccessful. This retrospective review, over a 6-year span, of 39 patients with dislocations and facet locks of the lower cervical spine treated with closed reduction showed that 35 (90%) were successful. Recommended weight was exceeded in 22 patients (63%) with no deteriorations in neurologic status. If patients are monitored radiologically and neurologically throughout traction, up to 70% of body weight can be used safely. An algorithm for treatment is provided.

Adult↗
PubMed1987

Pneumatic nailgun injuries to the knee.

Injuries from pneumatic nailguns have increased over the past ten years. From a review of clinical records and a cadaver study it was determined that no permanent clinical disability may ensue. Based on long-term results, it was found that treatment should be simple removal of the nail, after radiographs have ruled out retained metal fragments. Arthroscopy may play a role in treatment of complications.

Absenteeism↗
PubMed1986

Sacral fractures: classification and neurologic implications.

Sacral fractures can be classified, for diagnostic purposes, into three categories: 1) the sacral fracture which occurs in conjunction with a pelvic fracture, 2) the isolated sacral fracture of the lower segments; and 3) the isolated sacral fracture of the upper segments. The frequency of each type of fracture decreases from (1) to (3), but the neurologic implications increase. However, treatment for the three types should be conservative, since neurologic deficit at this level tends to improve spontaneously.

Adult↗