Eitschberger E, Merklein C, Masing H, Pesch H J
Arch Otorhinolaryngol. 1980;228(2):135-48. doi: 10.1007/BF00455341.
In 49 rabbits the mucoperichondrium of their nasal septa was strictly unilaterally separated according to the Cottle procedure. In addition, in some rabbits only the surface of the septal cartilage was incised and in others the cartilage was cut vertically or horizontally. Four months after the operation the following alterations of the septa were seen: The separation of the mucoperichondrium from the cartilage or superficial incision of the cartilage led to a deviation to the operated left side. If in addition parts of the cartilage septum were mobilized, thus swinging horizontally or vertically, a deviation to the other nonoperated side was seen. Similarly, if two parallel vertical stripes of cartilage were excised, the ends of the remaining cartilage plate bent and the cartilage plate itself deviated to the nonoperated side. The postoperative deviations are due to released unbalanced forces of the cartilage itself and to the disequilibrium of scar tension resulting from the unilateral separation of the mucoperichondrium. To avoid these postoperative deviations the bilateral tunneling of the mucoperichondrium is required.
在49只兔子身上，按照科特尔手术方法严格地对其鼻中隔的黏骨膜进行单侧分离。此外，在一些兔子身上仅切开鼻中隔软骨的表面，而在另一些兔子身上则将软骨垂直或水平切开。术后4个月观察到鼻中隔有以下改变：黏骨膜与软骨分离或软骨表面切开导致向手术的左侧偏曲。如果另外将部分鼻中隔软骨松动，使其水平或垂直摆动，则会出现向另一侧未手术侧的偏曲。同样，如果切除两条平行的垂直软骨条，剩余软骨板的末端会弯曲，软骨板本身会向未手术侧偏曲。术后的偏曲是由于软骨自身释放的不平衡力以及黏骨膜单侧分离导致的瘢痕张力失衡所致。为避免这些术后偏曲，需要对黏骨膜进行双侧隧道分离。
