Common Peroneal Nerve Palsy Research Articles

Iatrogenic neuromuscular disorders: a review.

The frequency of iatrogenic neuromuscular disorders has only recently been appreciated. Pressure palsies, especially common peroneal nerve palsies following bed rest or surgical procedures, are well recognized and easily preventable disorders. Mononeuropathies may also result from direct injuries to nerves, especially from venepuncture or attempted arterial cannulation in the axilla (O'Keefe 1980) or antecubital fossa, when the median nerve is particularly at risk. Stretch injuries to the lower cervical roots or to the lower cords of the brachial plexus may complicate sternal thoracotomy (Winer & Harrison 1982). However, most iatrogenic disorders of nerve and muscle are due to the unwanted effects of drugs used in therapeutic dosage. They are thus difficult to prevent. However, early detection is possible and this may prevent the development of severe disabilities.

Common peroneal nerve palsy: a clinical and electrophysiological review.

In a series of 70 patients (75 cases of common peroneal nerve palsy) the common causes were trauma about the knee or about the hip, compression, and underlying neuropathy. A few palsies occurred spontaneously for no apparent reason. The prognosis was uniformly good in the compression group; recovery was delayed but usually satisfactory in patients who had suffered stretch injuries. In the acute stage, when clinical paralysis appears to be complete, electrophysiological studies are a useful guide to prognosis. They may also indicate an underlying neuropathy and they detect early evidence of recovery. The anatomical peculiarities of the common peroneal nerve are noted and aspects of the clinical picture, management, and prognosis of palsy are discussed.

POLYCENTRIC KNEE ARTHROPLASTY

1. A concept and design of polycentric knee arthroplasty based on the biomechanics of normal knee movement is presented. The diseased articular surfaces of the femoral condyles and tibial plateaus are replaced separately by prosthetic implants secured with cement. The collateral and cruciate ligaments are retained to maintain joint stability. 2. The early results from this arthroplasty in twenty-two knees are assessed. The operation gave relief of pain in twenty-two, a range of movement greater than 90 degrees in thirteen, no lateral instability in sixteen of twenty-two knees and an increased degree of mobility for nineteen of twenty individuals (two bilateral arthroplasties). 3. Operative complications consisted of delayed wound healing in four knees and common peroneal nerve palsy in one. One knee was subsequently arthrodesed for lack of functional improvement.