[Neurologic complications in implantation of knee endoprostheses. A clinical and EMG-documented study].
In a retrospectively studied group of 253 knee joints treated by total replacement, six (2.4%) nerve lesions were clinically diagnosed. In the vast majority there was damage to the peroneal nerve, and in a single case also to the tibial nerve. After between one and three years only two patients still had permanently impaired function. In a second prospective study of 27 patients, examined by EMG before and after surgery, signs of bland, fresh neural damage was found in just under 30% following implantation of a knee joint prosthesis. In none of the cases had clinically manifest defunctionalization symptoms occurred. In the subsequent course, proof of far-reaching remission of the subclinical lesions was obtained, also by EMG. The causes of the perioperatively inflicted nerve lesions are discussed; the correction of axial defects (knee-bending contracture, genu valgum) in particular seems a likely cause of neural damage.
D004576:Electromyography; D005500:Follow-Up Studies; D006801:Humans; D007717:Knee / Q000294:innervation*; D007720:Knee Prosthesis; D009468:Neuromuscular Diseases / Q000175:diagnosis; D059348:Peripheral Nerve Injuries; D010543:Peroneal Nerve / Q000293:injuries; D011183:Postoperative Complications / Q000175:diagnosis*; D011474:Prosthesis Design; D013979:Tibial Nerve / Q000293:injuries
Neurologische Komplikationen bei der Implantation von Knieendoprothesen. Eine klinische und EMG-dokumentierte Untersuchung.