DR. MICHAEL J HEJNA, M.D., PHD.
Medical Practice at Burlington St, North Riverside, IL

License number
Illinois 036091139
Category
Medical Practice
Type
Orthopaedic Surgery
Address
Address
353 E Burlington St STE 100, North Riverside, IL 60546
Phone
(708) 442-0221
(708) 442-5670 (Fax)

Professional information

Michael J Hejna Photo 1

Dr. Michael J Hejna, Riverside IL - MD (Doctor of Medicine)

Specialties:
Orthopedic Surgery
Address:
Orthopedic Associates Riverside
353 E Burlington St STE 100, Riverside 60546
(708) 442-0221 (Phone)
Certifications:
Orthopedic Surgery, 1999
Awards:
Healthgrades Honor Roll
Languages:
English
Hospitals:
Orthopedic Associates Riverside
353 E Burlington St STE 100, Riverside 60546
Adventist La Grange Memorial Hospital
5101 South Willow Spg Rd, La Grange 60525
MacNeal Hospital
3249 South Oak Park Ave, Berwyn 60402
Education:
Medical School
Rush University
Graduated: 1990
Rush Presby St Luke's M C


Michael J Hejna Photo 2

Michael J Hejna, Riverside IL

Specialties:
Orthopaedic Surgery, Surgery
Work:
Orthopaedic Associates of Riverside
353 E Burlington St, Riverside, IL 60546 Macneal Memorial Hospital
3249 Oak Park Ave, Berwyn, IL 60402
Education:
Rush Medical College (1990)


Michael Hejna Photo 3

Cartilage Matrix And In Vitro Production Of Transplantable Cartilage Tissue

US Patent:
6451060, Sep 17, 2002
Filed:
Mar 5, 2001
Appl. No.:
09/799284
Inventors:
Koichi Masuda - Glenview IL
Eugene J-M. A. Thomar - Lockport IL
Michael Hejna - Riverside IL
Assignee:
Rush-Presbyterian-St. Lukes Medical Center - Chicago IL
International Classification:
A61F 202
US Classification:
623 2372
Abstract:
The present invention is directed to a transplantable cartilage matrix and a method for its in vitro production. In accordance with the method, chondrocytes are cultered for an amount of time effective for allowing formation of a chondrogenic cell-associated matrix. Chondrogenic cells, each with a cell-associated matrix, are recovered and cultured on a semipermeable membrane for a time effective for formation of a cohesive cartilage matrix.


Michael J Hejna Photo 4

Michael J Hejna, Riverside IL

Specialties:
Orthopedic Surgeon
Address:
353 E Burlington St, Riverside, IL 60546
Education:
Doctor of Medicine


Michael Hejna Photo 5

In Vitro Production Of Transplantable Cartilage Tissue Cohesive Cartilage Produced Thereby, And Method For The Surgical Repair Of Cartilage Damage

US Patent:
6197061, Mar 6, 2001
Filed:
Mar 1, 1999
Appl. No.:
9/260741
Inventors:
Koichi Masuda - Glenview IL
Eugene J-M. A. Thonar - Lockport IL
Michael Hejna - Riverside IL
International Classification:
A61F 202, C12N 508, C12N 500
US Classification:
623 1111
Abstract:
The present invention is directed to a transplantable cartilage matrix and a method for its in vitro production.


Michael Hejna Photo 6

Tissue Engineered Cartilage For Drug Discovery

US Patent:
2003013, Jul 24, 2003
Filed:
Jan 22, 2002
Appl. No.:
10/054710
Inventors:
Koichi Masuda - Wilmette IL, US
Eugene Thonar - Lockport IL, US
Brian Pfister - Wilmette IL, US
Michael Hejna - Riverside IL, US
International Classification:
C12Q001/22, C12Q001/18
US Classification:
435/031000, 435/032000
Abstract:
A culture system and method for determining the effect of a test agent on the development, homeostasis or degradation of engineered cartilage tissue. The engineered cartilage tissue is obtained by isolating chondrogenic cells and culturing them to obtain chondrocytes in a cell-associated matrix. The chondrocytes and cell associated matrix are then cultured on a semipermeable membrane to provide the engineered cartilage tissue. The engineered tissue, or one of its precursors, can be contacted with the test agent to determine what effect, if any, the test agent has on engineered cartilage.


Michael Hejna Photo 7

Tissue Engineered Osteochondral Implant

US Patent:
7931687, Apr 26, 2011
Filed:
May 12, 2003
Appl. No.:
10/435883
Inventors:
Koichi Masuda - Wilmette IL, US
Michael J. Hejna - Riverside IL, US
Brian E. Pfister - Wilmette IL, US
Assignee:
Articular Engineering, LLC - Northbrook IL
Rush University Medical Center - Chicago IL
International Classification:
A61F 2/02
US Classification:
623 1111, 623901, 435382, 435395, 424 937, 424422, 424423
Abstract:
Compositions, methods of production and use, and kits for an osteochondral graft involving both articular cartilage and underlying bone are provided.