SciMed
CPM Machine Knee — Continuous Passive Motion Rehab, 30°-110° Flexion, Post-Op Recovery
CPM Machine Knee — Continuous Passive Motion Rehab, 30°-110° Flexion, Post-Op Recovery
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Continuous Passive Motion (CPM) machine for knee rehabilitation after total knee arthroplasty (TKA), ACL reconstruction, meniscus repair, PCL reconstruction, femur / tibia ORIF, and knee manipulation under anesthesia. Adjustable flexion 30°-110°, low-noise motor for continuous 6-8 hour daily use, patient safety hand-switch, bed-mountable (works over patient's leg in hospital bed without repositioning), 9 kg light frame. 3-year manufacturer warranty. $1,999.99 direct — versus $4,500-$8,500 for Kinetec Spectra / OptiFlex 3 / Chattanooga OptiFlex CPM machines.
Why CPM is standard-of-care after TKA
Continuous Passive Motion after total knee arthroplasty (TKA), ACL reconstruction, and other major knee surgery accelerates recovery of range of motion (ROM), reduces post-operative pain + edema, prevents joint stiffness + arthrofibrosis, improves synovial fluid dynamics (nourishes cartilage during healing), and shortens hospital length of stay. Post-op TKA patients typically start CPM within 24 hours of surgery: initial 30°-60° flexion, progressing 5-10° daily to reach 90°+ by discharge day 3-4, and 110°+ by 2-4 weeks post-op. Home-based CPM continues for 4-6 weeks in most protocols. Insurance reimbursement (Medicare + most commercial) supports CPM rental for post-TKA patients under DME benefit.
Specifications
| Flexion range | 30° to 110° (adjustable per session, per patient protocol) |
|---|---|
| Extension | Full 0° extension (adjustable up to 30° flexion floor for pain-limited patients) |
| Speed | Variable — typically 45-60 seconds per full cycle |
| Motor | Continuous-duty gear motor, low-noise (typically 40-50 dB during operation) |
| Duty cycle | Continuous 24/7 rated (hospital + home use) |
| Thigh length adjustment | One-knob quick-adjust for different patient limb sizes (adult range) |
| Weight | ~9 kg (~20 lbs) — light for bed-mounting + transport |
| Patient safety switch | Included — patient-held stop-switch for immediate motion halt |
| Bed-mountable | Yes — mounts over patient's leg in standard hospital bed without repositioning patient |
| Power supply | 110V or 220V AC (specify at order) |
| Included accessories | 1× CPM Unit + 1× Patient Safety Switch + Operation Manual + 3-Year Warranty Card |
| Warranty | 3-year full manufacturer warranty on motor + frame + controls |
| Compliance | FDA 21 CFR 890.1500 (Class I PT device) · CE marked |
Post-operative CPM protocols (typical usage)
| Post-op day | Flexion range | Sessions | Duration |
|---|---|---|---|
| Day 0-1 (surgery day) | 0° - 30-45° | 2-3 sessions | 30-60 min each |
| Day 2-3 | 0° - 50-70° | 3-4 sessions | 1-2 hours each |
| Day 4-7 (discharge) | 0° - 75-90° | 3 sessions | 2-3 hours each |
| Week 2 (home) | 0° - 90-100° | 2 sessions | 3-4 hours each |
| Week 3-4 | 0° - 100-115° | 1-2 sessions | 4-6 hours each |
| Week 4-6 | Wean off CPM as active PT progresses | 1 session | 2-3 hours |
Clinical indications
- Total knee arthroplasty (TKA) — primary + revision knee replacement recovery
- Unicompartmental knee arthroplasty (UKA) — partial knee replacement recovery
- ACL reconstruction — post-op ROM maintenance, arthrofibrosis prevention
- Meniscus repair / partial meniscectomy — early motion after meniscus surgery
- PCL reconstruction — knee ROM after posterior cruciate surgery
- Femur / tibia ORIF — knee ROM during long-bone fracture recovery
- Manipulation under anesthesia (MUA) — post-arthrofibrosis manipulation ROM maintenance
- Cartilage repair / microfracture — early motion for chondral healing
- Knee synovectomy — rheumatoid + hemophilic arthritis surgery
- Osteotomy — high tibial osteotomy (HTO), distal femoral osteotomy
- Burn contracture prevention — knee joint mobility during burn healing
- Stroke / spinal cord injury — passive ROM for neurologically impaired patients
Comparison to alternatives
| Feature | SciMed CPM Knee | Kinetec Spectra | Chattanooga OptiFlex 3 | OrthoLogic Continuum |
|---|---|---|---|---|
| Price | $1,999.99 | $6,500-$8,500 | $5,500-$7,500 | $4,500-$6,500 |
| Flexion range | 30°-110° | -10° to 120° | -10° to 120° | 0° to 120° |
| Motor type | Continuous-duty gear | Precision servo | Servo | Servo |
| Noise level | 40-50 dB | <40 dB | <40 dB | 45-55 dB |
| Patient safety switch | Included | Included | Included | Included |
| Bed-mountable | Yes | Yes | Yes | Yes |
| Weight | 9 kg | 7 kg | 8 kg | 10 kg |
| Duty cycle | Continuous 24/7 | Continuous | Continuous | Continuous |
| Lead time | Same-day US ship | 2-4 weeks | 2-4 weeks | 2-3 weeks |
| Warranty | 3-year | 2-year | 2-year | 2-year |
Best for
- Orthopedic surgery centers — post-op TKA + ACL + meniscus rehabilitation supply
- Hospital orthopedic wards — inpatient CPM for the 3-4 days post-TKA before discharge
- DME (Durable Medical Equipment) rental companies — building CPM rental fleets for post-discharge home use
- Home health agencies — patient-home CPM programs
- Physical therapy clinics — in-clinic CPM sessions for post-op rehab patients
- Sports medicine centers — ACL + meniscus + arthroscopy recovery
- Rehabilitation hospitals — inpatient rehab CPM for TKA + revision cases
- Skilled nursing facilities (SNF) — post-acute rehab CPM after hospital discharge
- Individual patients + home health self-purchase — where insurance won't cover rental but out-of-pocket CPM improves recovery
- International orthopedic centers (India, LATAM, MENA, SE Asia) via DDP — expanding post-TKA rehab access
- Veterinary orthopedic rehabilitation — canine + equine post-op knee/stifle CPM
- Academic PT/OT programs — teaching lane CPM equipment
Buying for a hospital, DME rental company, or PT clinic?
SciMed supplies knee CPM machines direct to hospitals, orthopedic surgery centers, DME rental companies, home health agencies, and PT clinics globally.
- Volume pricing on 5+ unit orders — DME rental fleet builds, multi-hospital orthopedic ward stocking
- Net-30 invoicing for verified hospitals, DME companies, PT clinics
- DME rental fleet package pricing — quantity discounts + spare parts kits + return-refurbish training
- SAM.gov + VA / DoD compliant procurement — VA orthopedic + military orthopedic surgery centers
- GPO (Group Purchasing Organization) contracts — Vizient, Premier, HealthTrust participation on request
- Medicare + insurance billing support — DME billing codes E0935/E0936 documentation package
- International DDP shipping — India, LATAM (Mexico/Brazil/Colombia), MENA (UAE/Saudi/Egypt), SE Asia (Vietnam/Indonesia/Philippines), GCC, Sub-Saharan Africa
- Freight quotes on request — ships boxed ~15 kg, ground freight typical for US, ocean for 5+ unit international orders
- Extended service contracts — 5-year all-inclusive service available for DME rental applications
- Spare parts kits — motors, control boards, foam pads stocked in San Jose for 5+ years post-purchase
Frequently asked questions
Is this covered by Medicare / insurance for home rental?
CPM machines for post-TKA use are typically covered under Medicare DME benefit (HCPCS codes E0935 for rental, E0936 for purchase) for a defined post-op period (usually 21 days). Individual coverage varies by insurance plan + medical necessity documentation. For DME rental companies: this unit qualifies for standard DME rental billing. For individual patient purchase: verify with your insurance before buying — you may qualify for rental coverage instead.
How is this different from a Kinetec Spectra?
Feature-for-feature, largely the same clinical function — continuous passive motion 30°-110°, patient safety switch, quiet motor, bed-mountable, 3-year warranty. Kinetec Spectra has slightly wider flexion range (-10° to 120° vs our 30°-110°), more precise servo motor (vs our continuous-duty gear), and a slightly quieter operation (<40 dB vs 40-50 dB). Price differential: $1,999 vs $6,500-$8,500. For 95% of post-TKA + ACL rehab protocols, the SciMed unit's 30°-110° range is fully sufficient (most protocols target 90-110° flexion recovery). Kinetec's extended range benefits only high-flexion Asian squatting protocols + advanced athletes.
What's the flexion range limitation of 30°-110° mean for my protocol?
Standard post-TKA + ACL protocols target 90-110° flexion recovery by 4-6 weeks post-op — well within our range. If your surgeon's protocol targets 120°+ flexion (rare — typical for very active patients + Asian squat cultures), this unit may not reach full protocol target. However, once patient hits 100°+ flexion in CPM, they typically transition to active PT + gravity-assisted flexion (heel slides, wall slides), not continued CPM. The 30°-110° range covers the entire CPM phase of standard protocols.
Can this be used at home safely without a therapist?
Yes — designed for home use post-discharge. Patient safety switch allows immediate motion stop. Operation is simple (set flexion target, press start, patient controls stop). Home health agency + PT clinic staff typically set up the unit + educate patient/family on operation. For home rental: expect a home health visit for initial setup + teaching in the first 24 hours after hospital discharge.
How noisy is the motor for overnight use?
40-50 dB during operation — comparable to a quiet refrigerator or soft conversation. Not silent, but not disruptive to sleep. For hospital ward use with multiple CPM machines running simultaneously, cumulative noise is manageable. For home use in the same bedroom as the patient, most patients acclimate within 1-2 nights. If noise is a critical concern (light sleeper + shared bedroom), the Kinetec Spectra at <40 dB may be quieter, but the cost differential is significant.
Can this be used for pediatric patients?
Adjustable thigh length accommodates adult + adolescent patients (typical fit for age 12+). For pediatric CPM (age 6-12), the thigh length adjustment may not shorten enough. For infants + toddlers with congenital knee issues, this unit is not appropriate — pediatric CPM is a specialty category. Contact us if you need pediatric CPM options.
How long will one unit last in DME rental service?
Typical DME rental service life: 5-7 years with 4-6 rental cycles per year (each cycle 4-8 weeks patient use). Total lifetime cycles: 20-40 patient rentals per unit. Motor + gear system is the primary wear component (typically survives 15,000-25,000 hours of use); foam padding + patient hand-switch may need annual replacement in high-volume rental fleets. Spare parts stocked in San Jose for 5+ years post-purchase.
What's the warranty?
3-year full manufacturer warranty on motor, frame, controls, safety switch. Covers manufacturing defects + normal use wear. Cosmetic damage, damage from patient / operator misuse, and consumables (foam pads, hand-switch cable) not covered after 90 days. Extended 5-year service contract available for DME rental fleet operators (+$300/unit at time of order).
What voltage do I need?
Specify 110V (US standard) or 220V (international) at order. US hospitals + DME + home rental all standard 110V. International orthopedic centers typically 220V. Universal 100-240V configuration available for facilities with mixed power infrastructure (+$100).
How is this shipped internationally?
US: FedEx / UPS Ground insured, ~15 kg boxed. International: DHL Express DDP for single-unit urgent (~$200-400 depending on country) or ocean freight DDP for 5+ unit orders (cheaper per unit). Ships to India, LATAM (Mexico/Brazil/Colombia), MENA (UAE/Saudi/Egypt), SE Asia (Vietnam/Indonesia/Philippines/Malaysia), Sub-Saharan Africa (Kenya/Nigeria/South Africa), GCC, UK, EU, AU/NZ. Post-op orthopedic rehab is a major growth market in emerging economies where TKA volume is climbing rapidly.
Why buy direct from SciMed
- ~25-30% of Kinetec / Chattanooga OptiFlex pricing — same clinical function for standard TKA / ACL rehab
- Same-day US ship — no 2-4 week wait (critical when a hospital ward needs stocking for scheduled TKA cases)
- 3-year manufacturer warranty — exceeds Kinetec + Chattanooga 2-year standard
- DME rental fleet friendly — volume pricing, spare parts kits, Medicare billing code documentation
- Hospital + GPO friendly — SAM.gov, Vizient, Premier, HealthTrust compatible procurement
- Insurance billing support — HCPCS E0935/E0936 documentation package for DME billing
- International DDP — post-op orthopedic rehab expansion in emerging markets
- 5+ year parts availability — motor + control + foam pad spares stocked in San Jose
- Extended service contracts — for high-volume DME rental applications
Shipping: Free continental US FedEx / UPS Ground insured (~15 kg boxed). International DHL Express or ocean freight DDP. Hospital + DME + PT clinic procurement: clinic@scimedstore.com.
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