19 Harley St, London, W1G 9QJ, UK

Finite element analysis of cervical arthroplasty combined with fusion against 2-level fusion

STUDY DESIGN: A biomechanical analysis of cervical arthroplasty and fusion using the finite element method. OBJECTIVE: The purpose of this study was to compare the biomechanical performances of hybrid surgery (HS, C45Fusion combined with C56ProDisc-C arthroplasty) and 2-level fusion (TLF). SUMMARY OF BACKGROUND DATA: Cervical disk arthroplasty gained reliable clinical outcomes for treating single-level and 2-level cervical spondylosis. Cervical disk arthroplasty combined with fusion (HS) may be an alternative to 2-level anterior cervical decompression and fusion. METHODS: The HS model and the TLF model were analyzed using the finite element method. The range of motion (ROM) and adjacent intradikcal pressures (IDPs) under flexion, extension, lateral bending, and axial rotation were calculated and compared for both models. RESULTS: (1) Compared with the normal model, the ROM of C56 increased by 53.2% in flexion-extension, 69.3% in axial rotation, and 69.8% in lateral bending of ProDisc-C arthroplasty in the HS model. (2) The ROM of C3-C7 in the HS model was 22.9 degrees in flexion-extension, decreased by 18.9%, whereas the ROM of C3-C7 in the TLF model was 17.0 degrees, decreased by 39.7% compared with the normal model. (3) The maximal IDP of TLF model increased by 44.4% at C34 and 40.6% at C67 in flexion, whereas the HS model increased by 5.4% and 9.5%, respectively, compared with the normal model. (4) The ROM of the adjacent segment in TLF increased by 0.1% of C34 and 8.3% of C67 in flexion-extension, whereas that of the HS model decreased by 8.1% of C34 and 2.1% of C67 compared with the normal model. CONCLUSIONS: (1) The ROM of C56 (ProDisc-C arthroplasty) in HS was increased. (2) The HS model has a better ROM of C3-C7 than the TLF model. (3) The HS model offered less increase of adjacent segmental IDP and ROM than the TLF model

Keywords : analysis,Arthroplasty,Biomechanical Phenomena,Cervical Vertebrae,China,Diskectomy,Finite Element Analysis,Humans,methods,Models,Anatomic,Motion,Pressure,Range of Motion,Articular,Rotation,Spinal Fusion,Spondylosis,surgery,Universities,, Element,Analysis,Cervical,Arthroplasty, claudication pain

Date of Publication : 2013 Aug

Authors : Zhao Y;Li Q;Mo Z;Sun Y;Fan Y;

Organisation : Department of Orthopedic Surgery, Peking University Third Hospital, Beijing, China

Journal of Publication : J Spinal Disord Tech

Pubmed Link : https://www.ncbi.nlm.nih.gov/pubmed/22262026

The London Spine Unit : Harley Street UK. Specialists in Cutting Edge Technologies for Spinal Surgery

Make an Appointment 

Trustpilot Reviews
Doctify Reviews
Top Doctor Reviews

Finite Element Analysis of Cervical Arthroplasty Combined With Fusion Against 2-Level Fusion | Different types of physiotherapy

What our patients say ...

Consultant Spine Surgeon
Consultant Spine Surgeon
Consultant Spine Surgeon

This surgical technique consists of a percutaneous approach for the treatment of small to medium size hernias of the intervertebral disc by laser energy. The main objective is to reduce the intradiscal pressure in the nucleus pulposus

Laser Disc Surgery can be performed under local anaesthetic as a day case at our centre on the prestigious Harley Street.
What is London spine unit and How it Works

The London Spine Unit was established in 2005 and has successfully treated over 5000 patients. All conditions are treated.

treatment of all spinal disorders

The London Spine Unit specialises in Minimally Invasive Treatments allowing rapid recovery and return to normal function

Trusted by patients worldwide

The London Spine Unit provides the highest quality care to all patients and has VIP services for those seeking exceptional services

If you have any emergency Doctor’s need, simply call our 24 hour emergency

Your personal case manager will ensure that you receive the best possible care.

Call Now 

+44 844 589 2020
+44 203 973 8810