Skip to main content

01.12.2017 | Research article | Ausgabe 1/2017 Open Access

BMC Musculoskeletal Disorders 1/2017

Do the disc degeneration and osteophyte contribute to the curve rigidity of degenerative scoliosis?

BMC Musculoskeletal Disorders > Ausgabe 1/2017
Feng Zhu, Hongda Bao, Peng Yan, Shunan Liu, Mike Bao, Zezhang Zhu, Zhen Liu, Yong Qiu



The factors associated with lateral curve flexibility in degenerative scoliosis have not been well documented. Disc degeneration could result in significant change in stiffness and range of motion in lateral bending films. The osteophytes could be commonly observed in degenerative spine but the relationship between osteophyte formation and curve flexibility remains controversial. The aim of the current study is to clarify if the disc degeneration and osteophyte formation were both associated with curve flexibility of degenerative scoliosis.


A total of 85 patients were retrospectively analyzed. The inclusion criteria were as follow: age greater than 45 years, diagnosed as degenerative scoliosis and coronal Cobb angle greater than 20°. Curve flexibility was calculated based on Cobb angle, and range of motion (ROM) was based on disc angle evaluation. Regional disc degeneration score (RDS) was obtained according to Pfirrmann classification and osteophyte formation score (OFS) was based on Nanthan classification. Spearman correlation was performed to analyze the relationship between curve flexibility and RDS as well as OFS.


Moderate correlation was found between RDS and curve flexibility with a Spearman coefficient of −0.487 (P = 0.009). Similarly, moderate correlation was observed between curve flexibility and OFS with a Spearman coefficient of −0.429 (P = 0.012). Strong correlation was found between apical ROM and OFS compared to the relationship between curve flexibility and OFS with a Spearman coefficient of −0.627 (P < 0.001).


Both disc degeneration and osteophytes formation correlated with curve rigidity. The pre-operative evaluation of both features may aid in the surgical decision-making in degenerative scoliosis patients.
Über diesen Artikel

Weitere Artikel der Ausgabe 1/2017

BMC Musculoskeletal Disorders 1/2017 Zur Ausgabe

Neu im Fachgebiet Orthopädie und Unfallchirurgie

Mail Icon II Newsletter

Bestellen Sie unseren kostenlosen Newsletter Update Orthopädie und Unfallchirurgie und bleiben Sie gut informiert – ganz bequem per eMail.