Oak Orthosis Get Better Mileage
OAK Orthosis

from Fillauer LLC

OAK Orthosis, ABS Version

Feel the free-glide difference with the new OAK Orthosis from Fillauer. The OAK (Osteo-Arthritis Knee) polycentric orthotic knee joint has been engineered to provide motion that better approximates normal physiologic knee movement for use in a custom Osteoarthritic Knee Orthosis. Unlike simple pivot knee joints, the polycentric action of the OAK provides inherent stability at full extension and easy gliding during swing phase. This allows the patient to feel the “glide flex” stability during the first 5° of flexion.

The laterally mounted OAK joint also incorporates proximal and distal mounting plates with an adjustable range of 6° of genu varum to 30° of genu valgum. This allows the orthotist to fine-tune the amount of medial compartment unloading, to help relieve pain in the knee joint.

OAK features a full range of knee flexion from 12° – 150° with a 15° extension stop and 90° flexion stop. The Scandinavian inspired OAK provides function in a thin, cosmetic, and streamlined package and is constructed of special high strength aluminum and stainless steel. You will feel the difference.

Oak Orthotic Joint

The anterior proximal thigh and distal calf cuffs of the OAK brace have been designed with additional anatomic geometry to optimize comfort and rotation control. The use of the OAK polycentric knee mechanism better approximates the normal physiologic motion in the sagittal as well as the transverse plane. Many designs simply use a unicentric hinge joint that rotates anterior to find the position of the instantaneous center, whereas the polycentric joint remains in position throughout flexion.

The Comfil® TFC version uses a lightweight thermoformable carbon composite material that is easily remolded using a heat gun. The Kydex® and ABS versions use a lightweight impact resistant material and is also easily remolded using a heat gun.

Specifications

Thigh Sizes Small 15-18 in., Medium 18-22 in.,
Large 22-25 in., X-Large 25-29 in.
Shin Sizes Small 12-15 in., Medium 15-17 in.,
Large 17-19 in., X-Large 17-19 in.
Weight Comfil® version: 1.24 lbs., Kydex® version: 1.58 lbs.
ABS version: 1.58 lbs., ABS short version: 1.19 lbs.
Coronal Adjustment Range 30° Valgum, 6° Varum
Sagittal Range 0° – 135° with optional stops at 90° and 15° flexion
Pad Construction PolyFoam with shear netting and silicone beads
Silicone popliteal pad
Suspension Volumetric high compression and popliteal suspension
Hinge Mechanism Polycentric 4-bar glide flex action with stabilizing position at full flexion
Warranty 1 year warranty on frame and hinges, 6 month warranty on soft goods

Features

  • Reduces knee pain and helps conserve energy
  • Anatomic fit for increased comfort and support
  • Geometrically aligned to open medial compartment
  • Patented 30° valgum and 6° varum adjustment
  • Kydex®, ABS, or Comfil® Thermo Formable Composite cuffs

Indications

  • Mild to severe medial unicompartmental osteoarthritis
  • Osteoarthritis requiring adjustable compartmental unloading
  • Patients needing adjustable fitted cuff options
  • Patients requiring polycentric knee motion

Contraindications

  • Lateral unicompartmental or bicompartmental osteoarthritis
  • Low load tolerance of at thigh and shin
  • Thin skin or risk of skin breakdown
  • Patients with minimal or painful popliteal area for suspension
  • Patients requiring more than two knee stops
  • Severe knee sprain or ligamentous damage
  • ACL and/or PCL ligamentous damage
  • Thigh circumferences greater than 29 in. (custom thigh cuffs can be made)

L-Codes

  • L1843 – (Off-the-Shelf) KO, single upright, thigh and calf, with adjustable flexion and extension joint (unicentric and polycentric), medial-lateral and rotation control, with or without varus/valgus adjustment, prefabricated, includes fitting and adjustment.
  • L1844 – (Custom) KO, single upright, thigh and calf, with adjustable flexion and extension joint (unicentric or Polycentric), medial-lateral and rotation control, with or without varus/valgus adjustment, custom fabricated.

Suggested L-Codes are provided as a reference only. It is the responsibility of the practitioner and/or patient care facility submitting this claim to determine and submit the correct coding within all established rules and guidelines.

US Patent: No. 6,540,709.B1
European Patent: No. 1115356
Swedish Patent: No. 99952861.5
German Patent: No. DE699131790

OAK™ Orthotic Knee Joint Kit

OAK Joint Breakdown
023990 OAK™ Orthotic Knee Joint, Right
1 023900 OAK Joint, Right
2 023979 Flex/Ext Stop Pins, (2)
885345 Hex Key 1/8 in.
023980 Mounting Kit
    3 023985 External Alignment Block (2)
    4 023987 Mounting Nut (4)
    5 023984 Internal Mounting Plate (2)
    6 885901 Mounting Screw 5/8 in. (4)
    7 023982 Alignment Washer (4)
    8 023981 Spherical Washer (4)
    9 885903 Mounting Screw 3/4 in. (2)
023991 OAK™ Orthotic Knee Joint, Left
1 023901 OAK Joint, Left
2 023979 Flex/Ext Stop Pins, (2)
885345 Hex Key 1/8 in.
023980 Mounting Kit
    3 023985 External Alignment Block (2)
    4 023987 Mounting Nut (4)
    5 023984 Internal Mounting Plate (2)
    6 885901 Mounting Screw 5/8 in. (4)
    7 023982 Alignment Washer (4)
    8 023981 Spherical Washer (4)
    9 885903 Mounting Screw 3/4 in. (2)

Sizing and Selection

Measurements taken six inches above and six inches below mid-patella with knee fully extended.

6 in. Above 6 in. Below
Small 15-18 in. (38-46 cm) 12-15 in. (30-38 cm)
Medium 18-22 in. (46-56 cm) 15-17 in. (38-43 cm)
Large 22-25 in. (56-63 cm) 17-19 in. (43-48 cm)
X-Large 25-29 in. (63-74 cm) 17-19 in. (43-48 cm)
OAK Measurements

OAK Comfil®OAK Orthosis, Comfil® TFC

024200 OAK Orthosis, Comfil® TFC, Small, Right
024201 OAK Orthosis, Comfil® TFC, Small, Left
024202 OAK Orthosis, Comfil® TFC, Medium, Right
024203 OAK Orthosis, Comfil® TFC, Medium, Left
024204 OAK Orthosis, Comfil® TFC, Large, Right
024205 OAK Orthosis, Comfil® TFC, Large, Left
024206 OAK Orthosis, Comfil® TFC, X-Large, Right
024207 OAK Orthosis, Comfil® TFC, X-Large, Left
024198 OAK Orthosis, Comfil® TFC, Custom Cuff Selection

OAK Kydex®OAK Orthosis, Kydex®

024208 OAK Orthosis, Kydex®, Small, Right
024209 OAK Orthosis, Kydex®, Small, Left
024210 OAK Orthosis, Kydex®, Medium, Right
024211 OAK Orthosis, Kydex®, Medium, Left
024212 OAK Orthosis, Kydex®, Large, Right
024213 OAK Orthosis, Kydex®, Large, Left
024214 OAK Orthosis, Kydex®, X-Large, Right
024215 OAK Orthosis, Kydex®, X-Large, Left
024199 OAK Orthosis, Kydex®, Custom Cuff Selection

OAK ABSOAK Orthosis, ABS

024216 OAK Orthosis, ABS, Small, Right
024217 OAK Orthosis, ABS, Small, Left
024218 OAK Orthosis, ABS, Medium, Right
024219 OAK Orthosis, ABS, Medium, Left
024220 OAK Orthosis, ABS, Large, Right
024221 OAK Orthosis, ABS, Large, Left
024222 OAK Orthosis, ABS, X-Large, Right
024223 OAK Orthosis, ABS, X-Large, Left
024196 OAK Orthosis, ABS, Custom Cuff Selection

OAK ShortOAK Short Orthosis, ABS

024224 OAK Short Orthosis, ABS, Small, Right
024225 OAK Short Orthosis, ABS, Small, Left
024226 OAK Short Orthosis, ABS, Medium, Right
024227 OAK Short Orthosis, ABS, Medium, Left
024228 OAK Short Orthosis, ABS, Large, Right
024229 OAK Short Orthosis, ABS, Large, Left
024197 OAK Short Orthosis, ABS, Custom Cuff Selection

Custom Orthosis

Custom fabricated orthosis made to measurements for CAD model or patient cast

503170 OAK Orthosis, Comfil® TFC, Custom with Joint
503180 OAK Orthosis, Kydex, Custom with Joint
503200 OAK Orthosis, ABS, Custom with Joint
503190 OAK Short Orthosis, ABS, Custom with Joint

Accessories

Silicone Strap

Silicone Strap Pad

Optional accessory to aid in suspension and comfort

024300BLK Silicone Strap Pad, Black

OAK Padding Kit

024400 OAK Brace Padding Kit, Small, Right
024402 OAK Brace Padding Kit, Small, Left
024404 OAK Brace Padding Kit, Medium, Right
024406 OAK Brace Padding Kit, Medium, Left
024408 OAK Brace Padding Kit, Large, Right
024410 OAK Brace Padding Kit, Large, Left
024412 OAK Brace Padding Kit, X-Large, Right
024414 OAK Brace Padding Kit, X-Large, Left

Padding Kit includes upper pad, lower pad, and (16) adhesive hook dots

OAK Short Padding Kit

024416 OAK Short Brace Padding Kit, Small, Right
024418 OAK Short Brace Padding Kit, Small, Left
024420 OAK Short Brace Padding Kit, Medium, Right
024422 OAK Short Brace Padding Kit, Medium, Left
024424 OAK Short Brace Padding Kit, Large, Right
024426 OAK Short Brace Padding Kit, Large, Left

Padding Kit includes upper pad, lower pad, and (16) adhesive hook dots

OAK Strapping Kit

024600 OAK Brace Strapping Kit, Small, Right
024602 OAK Brace Strapping Kit, Small, Left
024604 OAK Brace Strapping Kit, Medium, Right
024606 OAK Brace Strapping Kit, Medium, Left
024608 OAK Brace Strapping Kit, Large, Right
024610 OAK Brace Strapping Kit, Large, Left
024612 OAK Brace Strapping Kit, X-Large, Right
024614 OAK Brace Strapping Kit, X-Large, Left

Strapping Kit includes (4) straps, (4) chafes, and (8) rivets

For more information and ordering, email Customer Service or call 1-800-251-6398.