OAR 436-035-0340
Hip
(1)
When a preponderance of objective medical evidence supports findings that reduced ranges of motion of the hip do not involve the pelvis or acetabulum, the impairment determination is valued according to OAR 436-035-0220 (Leg). If the reduced ranges of motion are a residual of pelvic or acetabular involvement, the impairment is determined under this rule.(2)
The following ratings are for loss of forward flexion in the hip joint: [Ratings not included. See ED. NOTE.](3)
The following ratings are for forward flexion ankylosis in the hip joint: [Ratings not included. See ED. NOTE.](4)
The following ratings are for loss of backward extension in the hip joint: [Ratings not included. See ED. NOTE.](5)
The following ratings are for backward extension ankylosis of the hip joint: [Ratings not included. See ED. NOTE.](6)
The following ratings are for loss of abduction in the hip joint: [Ratings not included. See ED. NOTE.](7)
The following ratings are for abduction ankylosis in the hip joint: [Ratings not included. See ED. NOTE.](8)
The following ratings are for loss of adduction in the hip joint: [Ratings not included. See ED. NOTE.](9)
The following ratings are for adduction ankylosis in the hip joint: [Ratings not included. See ED. NOTE.](10)
The following ratings are for loss of internal rotation of the hip joint: [Ratings not included. See ED. NOTE.](11)
The following ratings are for internal rotation ankylosis of the hip joint: [Ratings not included. See ED. NOTE.](12)
The following ratings are for loss of external rotation of the hip joint: [Ratings not included. See ED. NOTE.](13)
The following ratings are for external rotation ankylosis of the hip joint: [Ratings not included. See ED. NOTE.](14)
When two or more ankylosis positions are documented, select the one direction representing the largest impairment. That will be the impairment value for the hip represented by ankylosis.(15)
A value of 13% is determined for a total hip replacement (both femoral and acetabular components involved). If a total hip replacement surgery occurs following an earlier femoral head replacement surgery under OAR 436-035-0230 (Other Lower Extremity Findings)(5), both impairment values are rated.(16)
A value of 5% is awarded for a repeat total hip replacement surgery.(17)
Total value for loss of range of motion is obtained by adding (not combining) the values for each range of motion.(18)
The final value for the hip is obtained by combining (not adding) the values in sections (15), (16) and (17) of this rule.(19)
Healed displaced fractures in the hip may cause leg length discrepancies. Impairment is determined under OAR 436-035-0230 (Other Lower Extremity Findings).
Source:
Rule 436-035-0340 — Hip, https://secure.sos.state.or.us/oard/view.action?ruleNumber=436-035-0340.