The spine has three main sections: Cervical (neck), thoracic (mid-back), and lumbar (lower back). The letter L - refers to lumbar. A spinal disc separates each vertebral body from the other.


A L4-L5 disc, refers to the  disc that is in between the L4 and L5 vertebral body.​

The disc absorbs compression within the spine​​ - like a shock absorber

The disc provides flexibility

The disc protects from excessive motion

The spinal nerves pass right behind the discs


The Orthopedic Group

19450 Deerfield Avenue

Ste 200

Lansdowne, VA 20176

PHONE: 703-952-5115

FAX: 571-346-1932


StoneSprings Medical Office Building

24430 Stone Springs Blvd

Ste 100

Dulles / Sterling, VA 20166

PHONE: 703-952-5115

FAX: 571-346-1932

Metro Orthopedics & Sports Therapy

(Satellite Office)

7811 Montrose Road

Ste 340

Potomac, MD 20854

PHONE: 301-588-7888

FAX: 301-588-3419