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.

Arthroplasty, Shoulder


Related Terms

  • Hemiarthroplasty of the Shoulder
  • New Shoulder Joint
  • Reverse Total Shoulder Arthroplasty
  • Reverse Total Shoulder Replacement
  • Shoulder Arthroplasty
  • Shoulder Replacement
  • Total Shoulder Arthroplasty
  • Total Shoulder Replacement

Specialists

  • Hand Surgeon
  • Occupational Therapist
  • Orthopedic (Orthopaedic) Surgeon
  • Physiatrist (Physical Medicine and Rehabilitation Specialist)
  • Physical Therapist

Comorbid Conditions

  • Rotator cuff injury

Factors Influencing Duration

Factors influencing the length of disability include the underlying disease for which the procedure was performed, the development of complications, individual compliance with therapy and rehabilitation recommendations, the individual's job requirements, and whether the dominant or non-dominant arm was involved. Most individuals will be hospitalized for up to 3 to 5 days following surgery. Conditions that would impact ability to recover and further lengthen disability include rheumatoid arthritis, bursitis, and rotator cuff injury.

Medical Codes

ICD-9-CM:
81.80 - Other Total Shoulder Replacement
81.81 - Shoulder Replacement, Partial
81.82 - Repair of Recurrent Shoulder Dislocation
81.83 - Repair of Shoulder, Other

How Procedure is Performed

For total shoulder replacement either general or regional anesthesia will be administered. An incision running across the front of the shoulder from the middle of the collarbone (clavicle) to the middle of the arm bone (humerus) will be made. Scar tissue, which may limit movement, is then released or removed. The upper (proximal) end of the humerus is cut using a saw; some of the removed bone may be used as a bone graft to assist with the placement of the implant (prosthesis). The shoulder blade is then prepared for the placement of the artificial socket.

The humeral and the glenoid components compose the shoulder replacement which can be implanted with or without cement. The metal humeral component is the portion that takes the place of the ball on the proximal humerus, and the glenoid component is the portion that takes the place of the scapula's socket. The plastic glenoid component articulates with the ball of the humeral component.

After the individual awakens from either surgery, a bulky dressing will be on the affected shoulder. A drainage tube may be in place to drain excess fluid from the operative site. For the first few postoperative days, a continuous passive motion (CPM) machine may be used to move the shoulder in order to decrease the possibility of stiffness. The average hospital stay is 3 to 5 days.

Individuals with severe rotator cuff injury or those with a previous total shoulder replacement may require a reverse total shoulder replacement. In this case the plastic cup is fitted on the humerus and the metal "ball" attached to the glenoid. A reverse total shoulder replacement works better for these individuals because it relies on different muscles, such as the deltoid muscle, to move the arm (Routman).

Source: Medical Disability Advisor






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