Impact of Vocal Cord Paralysis on Cricoarytenoid Joint

Annals of Otology, Rhinology and Laryngology - Tập 111 Số 10 - Trang 896-901 - 2002
Andreas Müller1, Friedrich Paulsen2
1Jena, Germany
2Kiel, Germany

Tóm tắt

To demonstrate structural changes in the cricoarytenoid joint after recurrent laryngeal nerve paralysis, we performed a laboratory investigation of fixed arytenoid cartilages from adult humans obtained during laser surgical arytenoidectomy in cases of bilateral vocal fold paralysis, analyzing the articular cartilage, the joint capsule, and the attached laryngeal musculature. Ten arytenoid cartilages from adult humans were studied by means of histology, as well as scanning and transmission electron microscopy. After long-standing denervation (>6 months), all arytenoid cartilages showed degenerative changes in their joint surface structure at various levels of intensity. The articular surface revealed fibrillation in some places, demasking of collagen fibrils next to the joint surface, and formation of chondrocyte clusters near the joint surface. All specimens also showed muscle atrophy. We conclude that long-standing recurrent laryngeal nerve paralysis does not result in ankylosis of the cricoarytenoid joint, as assumed, but the articular cartilage undergoes structural changes comparable to those in osteoarthritis. Structural changes in the articular cartilage and in the surrounding musculature hamper efforts at joint function recovery, as do procedures aiming solely at either medialization or lateralization of the vocal fold.

Từ khóa


Tài liệu tham khảo

10.1001/archotol.1963.00750010033008

10.1097/00000539-200001000-00037

10.1097/00000542-199909000-00016

10.1001/archotol.1943.00670040180010

10.1001/archotol.1994.01880260084016

10.1001/archotol.124.8.903

10.1053/joca.1999.0253

10.1056/NEJM196207262670407

10.1001/archotol.1976.00780060073008

10.1001/archinte.1955.00250160139012

10.1001/archotol.1961.00740020553008

10.1679/aohc.62.149

Romeis B, 1989, Mikroskopische Technik, 17, 179

Langnickel R, 1973, Z Laryngol Rhinol Otol, 52, 67

10.2106/00004623-197052010-00010

10.1007/BF01583051

Messerklinger W, 1953, Monatsschr Ohrenheilkd Laryngol Rhinol, 87, 208

Rethi A, 1955, Z Laryngol Rhinol, 34, 456

10.1055/s-2007-1008569

10.1097/00005537-199612000-00016

10.1097/00005537-199902000-00019

10.1001/archotol.1991.01870210091018

10.1001/archotol.1993.01880210022003

10.1177/000348949710600712

Thông tin
Thông tin xuất bản

Annals of Otology, Rhinology and Laryngology

Tập 111 Số 10

896-901

Thông tin tác giả