Sedentary Work Exerting up to 10 pounds (4.5 kg) of force occasionally and/or a negligible amount of force frequently or constantly to lift, carry, push, pull, or otherwise move objects, including the human body. Sedentary work involves sitting most of the time, but may involve walking or standing for brief periods of time. Jobs are sedentary if walking and standing are required only occasionally and other sedentary criteria are met.

Light Work Exerting up to 20 pounds (9.1 kg) of force occasionally and/or up to 10 pounds (4.5 kg) of force frequently, and/or negligible amount of force constantly to move objects. Physical demand requirements are in excess of those for Sedentary Work. Light Work usually requires walking or standing to a significant degree. However, if the use of the arm and/or leg controls requires exertion of forces greater than that for Sedentary Work and the worker sits most the time, the job is rated Light Work.

Medium Work Exerting up to 50 (22.7 kg) pounds of force occasionally, and/or up to 25 pounds (11.3 kg) of force frequently, and/or up to 10 pounds (4.5 kg) of forces constantly to move objects.

Heavy Work Exerting up to 100 pounds (45.4 kg) of force occasionally, and/or up to 50 pounds (22.7 kg) of force frequently, and/or in excess of 20 pounds (9.1 kg) of force constantly to move objects.

Very Heavy Work Exerting in excess of 100 pounds (45.4 kg) of force occasionally, and/or in excess of 50 pounds (22.7 kg) of force frequently, and/or in excess of 20 pounds (9.1 kg) of force constantly to move objects.

Job Classification

In most duration tables, five job classifications are displayed. These job classifications are based on the amount of physical effort required to perform the work. The classifications correspond to the Strength Factor classifications described in the United States Department of Labor's Dictionary of Occupational Titles. The following definitions are quoted directly from that publication.

Sedentary Work Exerting up to 10 pounds (4.5 kg) of force occasionally and/or a negligible amount of force frequently or constantly to lift, carry, push, pull, or otherwise move objects, including the human body. Sedentary work involves sitting most of the time, but may involve walking or standing for brief periods of time. Jobs are sedentary if walking and standing are required only occasionally and other sedentary criteria are met.

Light Work Exerting up to 20 pounds (9.1 kg) of force occasionally and/or up to 10 pounds (4.5 kg) of force frequently, and/or negligible amount of force constantly to move objects. Physical demand requirements are in excess of those for Sedentary Work. Light Work usually requires walking or standing to a significant degree. However, if the use of the arm and/or leg controls requires exertion of forces greater than that for Sedentary Work and the worker sits most the time, the job is rated Light Work.

Medium Work Exerting up to 50 (22.7 kg) pounds of force occasionally, and/or up to 25 pounds (11.3 kg) of force frequently, and/or up to 10 pounds (4.5 kg) of forces constantly to move objects.

Heavy Work Exerting up to 100 pounds (45.4 kg) of force occasionally, and/or up to 50 pounds (22.7 kg) of force frequently, and/or in excess of 20 pounds (9.1 kg) of force constantly to move objects.

Very Heavy Work Exerting in excess of 100 pounds (45.4 kg) of force occasionally, and/or in excess of 50 pounds (22.7 kg) of force frequently, and/or in excess of 20 pounds (9.1 kg) of force constantly to move objects.

Meniscus Disorders, Knee


Related Terms

  • Injured Knee Cartilage
  • Meniscal Injury
  • Meniscus Lesion

Differential Diagnosis

  • Contusions
  • Knee osteochondritis dissecans
  • Ligament injuries (anterior or posterior cruciate)
  • Lumbosacral radiculopathy
  • Osteoarthritis
  • Patellofemoral joint dysfunction
  • Pes anserine bursitis
  • Rheumatoid arthritis
  • Tendon inflammation (tendinitis)
  • Tibial tubercle avulsion fracture

Specialists

  • Orthopedic (Orthopaedic) Surgeon
  • Physiatrist (Physical Medicine and Rehabilitation Specialist)
  • Physical Therapist
  • Sports Medicine Physician

Comorbid Conditions

Factors Influencing Duration

Length of disability is influenced by the severity of symptoms, region of meniscal tear, presence of underlying joint disease (e.g., osteoarthritis, rheumatoid arthritis), and type of surgery. Meniscal repairs and meniscal transplants require a period of immobilization for healing before rehabilitation can begin, and thus the disability duration will be longer for these procedures. Sustaining multiple injuries to the knee lengthens disability. Individuals who sit while they work may return sooner than those who stand. Nonsurgical treatment of meniscal tears usually interferes with heavy work.

Medical Codes

ICD-9-CM:
717.0 - Internal Derangement of Knee; Degeneration, Rupture (old), or Tear (old) of Articular Cartilage or Meniscus of Knee, Old Bucket Handle Tear of Medial Meniscus; Old Bucket Handle Tear of Unspecified Cartilage
717.1 - Internal Derangement of Knee; Degeneration, Rupture (old), or Tear (old) of Articular Cartilage or Meniscus of Knee, Derangement of Anterior Horn of Medial Meniscus
717.2 - Internal Derangement of Knee; Degeneration, Rupture (old), or Tear (old) of Articular Cartilage or Meniscus of Knee, Derangement of Posterior Horn of Medial Meniscus
717.3 - Internal Derangement of Knee; Degeneration, Rupture (old), or Tear (old) of Articular Cartilage or Meniscus of Knee, Derangement of Medial Meniscus, Other and Unspecified; Degeneration of Internal Semilunar Cartilage
717.40 - Internal Derangement of Knee; Degeneration, Rupture (old), or Tear (old) of Articular Cartilage or Meniscus of Knee, Derangement of Lateral Meniscus, Unspecified
717.41 - Internal Derangement of Knee; Degeneration, Rupture (old), or Tear (old) of Articular Cartilage or Meniscus of Knee, Bucket Handle Tear of Lateral Meniscus
717.42 - Internal Derangement of Knee; Degeneration, Rupture (old), or Tear (old) of Articular Cartilage or Meniscus of Knee, Derangement of Anterior Horn of Lateral Meniscus
717.43 - Internal Derangement of Knee; Degeneration, Rupture (old), or Tear (old) of Articular Cartilage or Meniscus of Knee, Derangement of Posterior Horn of Lateral Meniscus
717.49 - Internal Derangement of Knee; Degeneration, Rupture (old), or Tear (old) of Articular Cartilage or Meniscus of Knee, Derangement of Lateral Meniscus, Other
717.5 - Internal Derangement of Knee; Degeneration, Rupture (old), or Tear (old) of Articular Cartilage or Meniscus of Knee, Derangement of Meniscus, Not Elsewhere Classified; Congenital Discoid Meniscus; Cyst of Semilunar Cartilage; Derangement of Semilunar Cartilage NOS
836.0 - Dislocation of Knee; Tear of Medial Cartilage or Meniscus of Knee, Current; Bucket Handle Tear: NOS Current Injury, Medial Meniscus Current Injury
836.1 - Dislocation of Knee; Tear of Lateral Cartilage or Meniscus of Knee, Current
836.2 - Dislocation of Knee; Other Tear of Cartilage or Meniscus of Knee, Current; Tear of: Cartilage (Semilunar) Current Injury, Not Specified as Medial or Lateral; Meniscus Current Injury, Not Specified as Medial or Lateral

Prognosis

The outcome of meniscectomy depends on the location, severity of the tear, and the repair technique used. Meniscus repairs fail to heal in 5% to 10% of individuals (Baker). Following meniscus surgery, most people can return to all previous activities, including athletics, although the shock-absorbing capacity of the knee after a meniscectomy is reduced by about 20% (Kocher). Meniscus injury may predispose the individual to develop osteoarthritis in the involved knee. Progressive joint deterioration occurs following partial or complete meniscectomy. Long-term outcome of meniscal reconstruction is unknown.

Source: Medical Disability Advisor






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