Histological alterations after irradiation of cartilage using Ho : YAG laser

Date

2003-02-01

Author

Atik, OS
Erdogan, D
Ömeroğlu, Seçil
Korkusuz, Feza
Uslu, MM
Eksioglu, F

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

59
views

0
downloads

The authors carried out an experimental study to evaluate the histological alterations after irradiation of cartilage using Holmium:YAG (Ho:YAG) laser VersaPulse Select 60 watts and Infra. Tome Delivery Systems 30degrees Handpiece (spot size at fiber tip 0.4 mm; Coherent Medical, Palo Alto, CA). Background Data: Recently, some authors reported cases with articular cartilage damage following arthroscopic laser surgery in the knee joint for the treatment of articular cartilage or meniscal pathology. Materials and Methods: The cartilage specimens immersed in saline were exposed to Ho:YAG laser irradiation. The laser wavelength was 2.1 mum, and pulse duration was 250 musec. Power settings were 0.2-1 joules per pulse and 10-15 Hz. Total laser energy used in these procedures was 1.5 K joules. During the procedures, the handpiece was used at an angle of 30degrees and at a distance of 1 mm. Results: Electron microscopic evaluation demonstrated that the ultrastructure of the cartilage is preserved in both experiment and control groups. Conclusion: When Ho:YAG laser is used in optimal dosage (optimal joule and Hertz) with optimal technique (keeping the handpiece at an appropriate angle and distance) and avoiding overtreatment, it does not cause cartilage damage.

Subject Keywords

Surgery, Biomedical Engineering

URI

https://hdl.handle.net/11511/57340

Journal

JOURNAL OF CLINICAL LASER MEDICINE & SURGERY

DOI

https://doi.org/10.1089/10445470360516671

Collections

Department of Environmental Engineering, Article

Suggestions

OpenMETU
Core

Histological and magnetic resonance imaging alterations after irradiation of meniscus using holmium : YAG laser Atik, OS; Erdogan, D; Ömeroğlu, Seçil; Tali, T; Korkusuz, Feza; Uslu, MM; Eksioglu, F (2001-10-01) Objective: The authors performed an experimental and a prospective clinical study to evaluate the histological and magnetic resonance imaging (MRI) alterations after irradiation of meniscus using holmium:YAG (Ho:YAG) laser VersaPulse Select 60 watts and InfraTome Delivery Systems 30 degrees Handpiece (spot size at fiber tip 0.4 mm; Coherent Medical, Palo Alto, CA). Background Data: Recently, some authors reported a few cases with articular cartilage damage or paraarticular osteonecrosis following arthroscop...
An investigation of microstructure, microhardness and biocompatibility characteristics of yttrium hydroxyapatite doped with fluoride Toker, Sıdıka Mine; Evis, Zafer; Department of Biomedical Engineering (2010) The aim of this study was to investigate the microstructure, microhardness and biocompatibility properties of nano hydroxyapatite (HA) doped with a constant yttrium (Y3+) and varying fluoride (F-) compositions. HA was synthesized via precipitation method and sintered at 1100C for 1 hour. Increased densities were achieved upon Y3+ doping while F- doping led to a decrease in densities. For structural analysis, XRD, SEM and FTIR spectroscopy examinations were performed. No secondary phases were observed in XR...
Osteogenic differentiation of MC3T3-E1 cells on different titanium surfaces HAKKI, SEMA; Bozkurt, S. Buket; HAKKI, ERDOĞAN EŞREF; KORKUSUZ, PETEK; PURALI, NUHAN; Koc, Nursen; Timucin, Muharrem; ÖZTÜRK, ADNAN; Korkusuz, Feza (IOP Publishing, 2012-08-01) mRNA expressions related to osteogenic differentiation of MC3T3-E1 cells on electro-polished smooth (S), sandblasted small-grit (SSG) and sandblasted large-grit (SLG) surfaces of titanium alloys were investigated in vitro. Gene expression profiles of cells were evaluated using the RT2 Profiler PCR microarray on day 7. Mineralizing tissue-associated proteins, differentiation factors and extracellular matrix enzymes mRNA expressions were measured using Q-PCR. SLG surface upregulated 23 genes over twofolds and...
Biodegradation of 4-CP and 2,4-DCP mixture in a rotating biological contactor (RBC) şahinkaya, Erkan; Dilek, Filiz Bengü (Elsevier BV, 2006-09-01) In this study, the performance of a two stage rotating biological contactor (RBC) was evaluated for the treatment of synthetic wastewater containing peptone, 4-chlorophenol (4-CP) and 2,4-dichlorophenol (2,4-DCP) at 5 rpm. Also, the effect of biogenic substrate (peptone) concentration on the reactor performance was investigated. High chlorophenols (> 98%) and COD (> 94%) removals were achieved throughout the reactor operation in the first stage and the second stage behaved as a polishing step. The observed ...
Effects of different inter-implant distances on the stress distribution around endosseous implants in posterior mandible: A 3D finite element analysis Simsek, B; Erkmen, E; Yilmaz, D; Eser, A (Elsevier BV, 2006-04-01) Purpose: The aim of this study was to evaluate the effects of different inter-implant distances on stress distribution in the bone around the endosseous titanium implants under vertical, oblique and horizontal loads in the posterior mandibular edentulousim by finite element analysis (3D FEA).

Citation Formats

O. Atik, D. Erdogan, S. Ömeroğlu, F. Korkusuz, M. Uslu, and F. Eksioglu, “Histological alterations after irradiation of cartilage using Ho : YAG laser,” JOURNAL OF CLINICAL LASER MEDICINE & SURGERY, pp. 3–6, 2003, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/57340.