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.

Ruptured Quadriceps Tendon


Related Terms

  • Extensor Mechanism Disruption
  • Knee Tendon Rupture
  • Quadriceps Tendon Tear

Differential Diagnosis

Specialists

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

Factors Influencing Duration

Duration depends upon severity of the injury, type of treatment, job requirements, and any injury or treatment complications.

Medical Codes

ICD-9-CM:
727.65 - Rupture of Tendon, Nontraumatic, Quadriceps Tendon

Rehabilitation

The goals of rehabilitation following a quadriceps tendon rupture are to decrease pain and to return the individual to full function with a painless, mobile knee. The duration of treatment is related to the functional mobility, healing response, and any complications.

The focus of rehabilitation is on restoring full range of motion, strength, proprioception, and endurance while maintaining independence in all activities of daily living. While the resumption of pre-injury status is the goal, the type of rupture (partial, complete) will affect the speed of rehabilitation. Protocols for rehabilitation must be guided by the treating physician and must consider the type of rupture and rupture management (operative, nonoperative).

In order to decrease pain, local cold application may be beneficial. To prevent complications of inactivity and bed rest, individuals should be encouraged to continue functional activities that do not compromise the status of the healing tendon.

The individual will need to wear a knee immobilizer brace for several weeks following rupture to support the knee in full extension while allowing tendons to heal. Physical therapists should instruct the individual in the use of assistive devices to promote independent ambulation. The individual should progress from walker to crutches to cane according to weight bearing status and ability. Therapists will instruct the individual in range of motion exercises of the adjacent joints unless contraindicated. After the knee immobilizer is removed, range of motion, strengthening, and proprioception exercises should be started at the knee joint according to physician recommendation. Exercise intensity and difficulty should be progressed until full function is evident. The treating physician will dictate the protocol for rehabilitation.

Tendons may heal within 8 to 12 weeks; however, full restoration of tendon strength and ability to sustain a heavy load may take up to 1 year. Once healing has occurred, the individual may resume full activities of daily living. It is important to instruct the individual not to overload the tendon until it has regained its full strength. The resumption of heavy work and sports should occur under the guidance of the treating physician.

Source: Medical Disability Advisor






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