Mondelli M, Cioni R
EMG Service ASL 7, Siena, Italy.
Neurophysiol Clin. 1998 Nov;28(5):391-7. doi: 10.1016/S0987-7053(99)80023-9.
Electrophysiological findings are reported suggesting a relationship between idiopathic tarsal (TTS) and carpal tunnel syndromes (CTS) to explain that the coexistence of both entrapment syndromes in the same patients is not coincidental. Sixty-five patients with idiopathic CTS and 15 with idiopathic TTS were selected. None of the patients with CTS reported any symptoms, nor did they have any signs of TTS, and vice versa. Distal sensory conduction velocity (SCV) of the tibial nerve was reduced in ten of 65 patients with CTS; in five of these ten patients, tibial distal motor latency (DML) was also delayed. Reduced SCV and increased DML were evident in the median nerve of two patients with TTS. The mean of DML and SCV of the tibial nerve in the CTS group and of the median nerve in the TTS group were significantly reduced with respect to the control group without differences in the conduction of the ulnar, deep peroneal and sural nerves. This indicates that there was subclinical involvement of the median and tibial nerves in these patients. Besides having a narrow carpal tunnel, patients with CTS presumably also have a narrow tarsal tunnel and vice versa, and are therefore prone to develop both nerve entrapment syndromes. The different incidence of the two syndromes is explained on the basis of anatomical and functional differences between the two nerves.
据报道，电生理检查结果表明特发性跗管综合征（TTS）与腕管综合征（CTS）之间存在关联，以解释同一患者中两种卡压综合征并存并非偶然。选取了65例特发性CTS患者和15例特发性TTS患者。所有CTS患者均未报告任何TTS症状，也没有TTS体征，反之亦然。65例CTS患者中有10例胫神经远端感觉传导速度（SCV）降低；在这10例患者中的5例，胫神经远端运动潜伏期（DML）也延迟。2例TTS患者正中神经出现SCV降低和DML增加。与对照组相比，CTS组胫神经以及TTS组正中神经的DML和SCV平均值显著降低，而尺神经、腓深神经和腓肠神经的传导无差异。这表明这些患者存在正中神经和胫神经的亚临床受累。除了腕管狭窄外，CTS患者可能还存在跗管狭窄，反之亦然，因此容易发生两种神经卡压综合征。两种综合征发病率的差异是基于两条神经在解剖学和功能上的差异来解释的。
