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Biomechanical abnormality

Document
Last amended 
27 May 2015

Joint instability - Biomechanical abnormality Factor

In the Statements of Principles for joint instability and dislocation the RMA defines "a biomechanical abnormality involving the affected joint" to mean an abnormality of the forces acting on the affected joint as a result of a muscle, tendon, ligament, or bone, that maintains the normal structural or functional relationship between the articulating surfaces of the affected joint, and that is not functioning correctly, is abnormal or is misaligned. This definition includes biomechanical abnormality as a result of surgery involving the stabilising structures of the affected joint and extra-articular malunion of a fracture of a bone involved in the affected joint.

General Information

This type of abnormality can result from injury or disease.  For the abnormality to contribute to dislocation or joint instability, it must involve the same joint as the joint affected by the dislocation, or joint instability.

You may need to seek medical advice to establish if any contended condition meets the requirements of the definition.

Last reviewed for CCPS 16 June 2014.

Investigative Documents

Type

Title

PDF Format

Word Format

Medical Report
Joint Instability
MR9429.pdf
MR9429.docx
Preliminary questions [42139]

42140 there is some evidence that a biomechanical abnormality involving the affected joint may be a factor in the development or worsening of joint instability.

42141 the veteran had a biomechanical abnormality as defined in the Statement of Principles.

42142 the veteran had a biomechanical abnormality at side and site of the body at some time.

42143 the veteran had a biomechanical abnormality to side and site of the body due to an illness or injury which is identifiable.

42144  the veteran has established the causal connection between a biomechanical abnormality and VEA service for joint instability.

42145 as a consequence of the identified illness or injury, the veteran had a biomechanical abnormality, to side and site of the body, at the time of the clinical onset of joint instability.

42146   the veteran has established the causal connection between a biomechanical abnormality and VEA service for the clinical onset of joint instability.

42149  the veteran has established the causal connection between a biomechanical abnormality and operational service for the clinical onset of joint instability.

or

42150  the veteran has established the causal connection between a biomechanical abnormality and eligible service for the clinical onset of joint instability.

or

7334     the clinical onset of the condition under consideration occurred after the end of the veteran's last period of VEA service.

7335     the condition under consideration permanently worsened.

42147 as a consequence of the identified illness or injury, the veteran had a biomechanical abnormality, to side and site of the body, at the time of the clinical worsening of joint instability.

42148   the veteran has established the causal connection between a biomechanical abnormality and VEA service for the clinical worsening of joint instability.

42151  the veteran has established the causal connection between a biomechanical abnormality and operational service for the clinical worsening of joint instability.

or

42152  the veteran has established the causal connection between a biomechanical abnormality and eligible service for the clinical worsening of joint instability.

Clinical onset and operational service [42149]

42153  the identified illness or injury, which caused a biomechanical abnormality affecting side and site of the body, is causally related to operational service.

Clinical onset and eligible service [42150]

42154  the identified illness or injury, which caused a biomechanical abnormality affecting side and site of the body, is causally related to eligible service.

Clinical worsening and operational service [42151]

42153  the identified illness or injury, which caused a biomechanical abnormality affecting side and site of the body, is causally related to operational service.

42155 the clinical onset of the joint instability occurred prior to that part of operational service to which the identified illness or injury, as a consequence of which the veteran had a biomechanical abnormality to side and site of the body, is causally related.

Clinical worsening and eligible service [42152]

42154  the identified illness or injury, which caused a biomechanical abnormality affecting side and site of the body, is causally related to eligible service.

42156 the clinical onset of the joint instability occurred prior to that part of eligible service to which the identified illness or injury, as a consequence of which the veteran had a biomechanical abnormality to side and site of the body, is causally related.