Minn. R. Part 5223.0170

Current through Register Vol. 48, No. 51, June 17, 2024
Part 5223.0170 - MUSCULOSKELETAL SCHEDULE; JOINTS
Subpart 1.General.

For permanent partial disability of joints, disability of the whole body is set forth in subparts 2 to 9.

Subp. 2.Surgical or traumatic shortening of lower extremity.

Surgical or traumatic shortening of lower extremity:

A. 1/4 inch to 3/4 inch, 3 percent;
B. 3/4 to 1-1/4 inches, 4.5 percent;
C. 1-1/4 to 1-3/4 inches, 6 percent; or
D. 1-3/4 inches and above, 9 percent.
Subp. 3.Hip.

Hip:

A. Range of motion:
(1) mild, anterior posterior movement from 0 degree to 120 degree flexion, rotation and lateral motion, abduction, adduction free to 50 percent of normal, 6 percent;
(2) moderate, anterior posterior motion from 15 degrees flexion deformity to 110 degrees further flexion, rotation, lateral motion, abduction, and adduction free to 25 percent normal, 12 percent;
(3) severe, anterior posterior motion from 30 degrees flexion deformity to 90 degrees further flexion, 22 percent.
B. Procedures or conditions:
(1) nonunion proximal femur fracture without reconstruction, 33 percent;
(2) arthroplasty, able to stand at work and walk, motion 25 percent to 50 percent of normal, 18 percent;
(3) total hip arthroplasty, normal result, 13 percent;
(4) femoral endoprosthesis:
(a) minimal pain, near normal range of motion, able to walk unsupported, 15 percent;
(b) mild to moderate pain with weight bearing, motion 50 percent of normal, 20 percent;
(5) hip pinning for fracture:
(a) minimal pain, near normal range of motion, able to walk unsupported, 5 percent;
(b) mild to moderate pain, motion 50 percent of normal, 10 percent.
Subp. 4.Femur.

Femur:

A. shaft fracture, closed, healed, 0 percent;
B. femoral shaft fracture, open reduction, loss of less than 20 degrees of movement of any one plane of either the hip or the knee, no malalignment, 2 percent.
Subp. 5.Knee.

Knee:

A. Range of motion.
(1) ankylosis and limited motion, total ankylosis optimum position, 15 degrees flexion, 22 percent;
(2) limitation of motion:
(a) mild, 0 degrees to at least 110 degrees flexion, 2 percent;
(b) moderate, 5 degrees to at least 80 degrees flexion, 7 percent;
(c) severe, 5 degrees to at least 60 degrees flexion, 15 percent;
(d) extremely severe, limited from 15 degrees flexion deformity with further flexion to 90 degree, 18 percent.
B. Procedures or conditions:
(1) surgical removal of medial or lateral semilunar cartilage, more than 50 percent of cartilage removed, no complications, 3 percent;
(2) partial meniscectomy, up to 50 percent of the meniscus removed, 2 percent;
(3) surgical removal both cartilages, 9 percent;
(4) ruptured cruciate ligament, repaired or unrepaired:
(a) mild laxity, 3 percent;
(b) moderate laxity, 7 percent;
(c) severe laxity, 10 percent;
(5) excision of patella, 9 percent;
(6) plateau fracture, depressed bone elevated, semilunar excised, 9 percent;
(7) plateau fracture, undisplaced, 2 percent;
(8) supracondylar or intercondylar fracture, displaced, 7 percent;
(9) supracondylar or intercondylar fracture, undisplaced, 2 percent;
(10) patella fracture, open reduction or partial patellectomy, displaced, 5 percent;
(11) patella fracture, open reduction or partial patellectomy, undisplaced, 2 percent;
(12) patellar shaving, 1 percent;
(13) arthroscopy, 0 percent;
(14) repair collateral ligament, mild laxity, 2 percent;
(15) repair collateral ligament, moderate laxity, 4 percent;
(16) repair patellar dislocation, 5 percent;
(17) total knee arthroplasty, flexion to 90 degrees, extension to 0 degrees, 13 percent;
(18) total knee unicondylar, 7 percent;
(19) lateral retinacular release, 1 percent;
(20) proximal tibial osteotomy, flexion to 90 degrees, extension to 0 degrees, 5 percent.
Subp. 6.Tibia.

Tibia:

A. tibial shaft fracture, undisplaced, healed, normal motion and alignment, 0 percent;
B. tibial shaft fracture, open reduction, loss of less than 20 degrees of movement in any one plane in either the knee or the ankle with full knee extension, no malalignment, 5 percent.
Subp. 7.Ankle and foot.

Ankle and foot:

A. Range of motion:
(1) total ankylosis ankle and foot, pantalar arthrodesis:
(a) in 10 degrees plantar flexion, 15 percent;
(b) malposition 30 degrees plantar flexion, 20 percent;
(2) ankylosis of foot, subtalar or triple arthrodesis tarsal bones, ankle, normal motion, 7.5 percent:
(a) decreased motion, subtalar joint, 3.5 percent;
(b) ankylosis in malposition, 8 percent;
(3) ankylosis of tibia and talus, subtalar joints free, optimum position 15 degrees plantar flexion, 12 percent;
(4) limitation of motion in the ankle:
(a) mild, motion limited from position of 90 degrees right angle to 20 degrees plantar flexion, 3 percent;
(b) moderate, motion limited from position of 10 degrees flexion to 20 degrees plantar flexion, 6 percent;
(c) severe, motion limited from position of 20 degrees plantar flexion to 30 degrees plantar flexion, 12 percent.
B. Procedures or conditions:
(1) achilles tendon rupture with treatment surgically or nonsurgically, able to stand on toes, 2 percent;
(2) achilles tendon rupture with treatment surgically or nonsurgically, unable to sustain body weight on toes, 4 percent;
(3) open reduction ankle:
(a) normal range of motion:
i. medial malleolus only, 2 percent;
ii. lateral malleolus only, 2 percent;
(b) normal to mild restriction on range of motion:
i. medial and lateral malleolus, 4 percent;
ii. trimalleolar, 4 percent;
(c) for moderate to severe restriction of range of motion in the ankle, rate as in item A, subitem (4);
(4) ankle, lateral ligament reconstruction, mild laxity, normal range of motion, 2 percent;
(5) ankle, lateral ligament reconstruction, moderate laxity, at least ten degrees greater widening on the Talar tilt stress test X-ray compared to the uninjured side, 3 percent.
Subp. 8.Foot.

Foot:

A. Range of motion:
(1) ankylosis of tarsal metatarsal or mild tarsal joints:
(a) normal position, 2.5 percent;
(b) malposition, 5 percent;
(2) limited motion in the foot:
(a) mild, limited motion with mild pain with weight bearing, no change in activities, 2.5 percent;
(b) moderate, limitation of motion with pain with weight bearing, no reduction in athletic or vigorous activities, 5 percent;
(c) severe, limitation of motion with pain with weight bearing, sedentary activities not affected, 10 percent.
B. Procedures or conditions:
(1) calcaneal fracture, extra articular, pain with weight bearing, 6 percent;
(2) calcaneal fracture, intra articular:
(a) mild limitation of motion as in item A, subitem (2), unit (a), 6 percent;
(b) moderate limitation of motion as in item A, subitem (2), unit (b), 12 percent;
(c) severe limitation of motion as in item A, subitem (2), unit (c), 18 percent;
(3) avascular necrosis talus:
(a) mild limitation of motion as in item A, subitem (2), unit (a), 6 percent;
(b) moderate limitation of motion as in item A, subitem (2), unit (b), 12 percent;
(c) severe limitation of motion as in item A, subitem (2), unit (c) 18 percent;
(4) tarsal fractures, healed, mild pain, 3 percent;
(5) metatarsal fractures, healed, 0 percent;
(6) phalangeal fractures, healed, 0 percent.
Subp. 9.Toes.

Toes:

A. complete ankylosis of metatarsophalangeal joint, any toe, 3 percent;
B. complete ankylosis any toe, interphalangeal joint, optimum position semiflexion, 1 percent.

Minn. R. Part 5223.0170

10 SR 1124

Statutory Authority: MS s 176.105