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Knee Cartilage Repair and PreservationArticular cartilage lacks blood vessels, so when damaged it forms fibrocartilage—a mechanically inferior scar tissue that typically deteriorates within two to three years. This biological constraint shapes every treatment option, from temporary symptom relief to procedures attempting true cartilage regeneration.Articular cartilage lacks blood vessels, so when damaged it forms fibrocartilage—a mechanically inferior scar tissue that typically deteriorates within two to three years. This biological constraint shapes every treatment option, from temporary symptom relief to procedures attempting true cartilage regeneration.
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Is MACI Knee Surgery Worth It?MACI harvests, cultures, and implants the patient's own cartilage cells across two surgeries weeks apart. It delays knee replacement—7.4% progression over a decade—but requires 12–18 months of recovery and works best for younger patients with focal defects of 3 cm² or more.MACI harvests, cultures, and implants the patient's own cartilage cells across two surgeries weeks apart. It delays knee replacement—7.4% progression over a decade—but requires 12–18 months of recovery and works best for younger patients with focal defects of 3 cm² or more.
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When knee pain needs an orthopaedic assessmentMost knee pain settles with rest and physiotherapy; the threshold for orthopaedic assessment is persistent dysfunction despite weeks of conservative care, or acute structural changes—and assessment maps options rather than commits to surgery.Most knee pain settles with rest and physiotherapy; the threshold for orthopaedic assessment is persistent dysfunction despite weeks of conservative care, or acute structural changes—and assessment maps options rather than commits to surgery.
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High tibial osteotomy as a first step in knee preservationHigh tibial osteotomy repositions the tibia to shift weight-bearing from damaged inner knee cartilage to the healthier outer compartment. For younger, active patients, the procedure preserves the natural joint and potentially extends its working life by a decade or more.High tibial osteotomy repositions the tibia to shift weight-bearing from damaged inner knee cartilage to the healthier outer compartment. For younger, active patients, the procedure preserves the natural joint and potentially extends its working life by a decade or more.
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ChondroFiller™ durability compared with ArthrosamidChondroFiller™ recruits the patient's own progenitor cells to build new cartilage tissue within a collagen scaffold. Three-year published follow-up shows mean IKDC scores of 80 — a 32.4-point improvement from baseline — with durability reported to extend beyond five years.ChondroFiller™ recruits the patient's own progenitor cells to build new cartilage tissue within a collagen scaffold. Three-year published follow-up shows mean IKDC scores of 80 — a 32.4-point improvement from baseline — with durability reported to extend beyond five years.
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Medial knee pain that isn't a meniscus tearAround 850,000 meniscal surgeries are performed annually in the United States, yet five other structures in the medial knee generate pain so similar that clinicians commonly mistake them for meniscal tears.Around 850,000 meniscal surgeries are performed annually in the United States, yet five other structures in the medial knee generate pain so similar that clinicians commonly mistake them for meniscal tears.
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The cost of leaving a knee cartilage defect untreatedKnee cartilage defects do not heal because cartilage lacks blood supply; defects widen under load with each step, spreading damage to surrounding tissue and progressing towards osteoarthritis if untreated.Knee cartilage defects do not heal because cartilage lacks blood supply; defects widen under load with each step, spreading damage to surrounding tissue and progressing towards osteoarthritis if untreated.
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When cartilage repair makes sense before knee replacementTotal knee replacement achieves over 90% long-term success, yet patients under 55 face substantially higher revision risk within 20 years. For focal cartilage damage in the mid-40s, repair offers a joint-preservation pathway suited to this earlier disease stage—provided defect size and patient profile meet defined clinical criteria.Total knee replacement achieves over 90% long-term success, yet patients under 55 face substantially higher revision risk within 20 years. For focal cartilage damage in the mid-40s, repair offers a joint-preservation pathway suited to this earlier disease stage—provided defect size and patient profile meet defined clinical criteria.
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MACI vs Microfracture for Knee Cartilage RepairFor focal knee cartilage defects above 3 cm², MACI outperformed microfracture across all clinical measures: pain scores improved to 82.5 versus 70.9 at two years, with durability sustained at five-year follow-up.For focal knee cartilage defects above 3 cm², MACI outperformed microfracture across all clinical measures: pain scores improved to 82.5 versus 70.9 at two years, with durability sustained at five-year follow-up.
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Cartilage repair or knee replacementThe choice between cartilage repair and knee replacement hinges on whether damage is focal or diffuse. Isolated defects in otherwise healthy joints can be repaired; widespread bone-on-bone osteoarthritis affecting multiple compartments requires replacement instead.The choice between cartilage repair and knee replacement hinges on whether damage is focal or diffuse. Isolated defects in otherwise healthy joints can be repaired; widespread bone-on-bone osteoarthritis affecting multiple compartments requires replacement instead.
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ChondroFiller duration vs hyaluronic acid and ArthrosamidChondroFiller's repair tissue outlasts the scaffold itself: the collagen dissolves within two years, but tissue built by the patient's own progenitor cells persists for three to five years.ChondroFiller's repair tissue outlasts the scaffold itself: the collagen dissolves within two years, but tissue built by the patient's own progenitor cells persists for three to five years.
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When Knee Alignment Must Come Before Cartilage RepairCartilage repair fails in a varus knee because the weight-bearing line runs through the damaged medial compartment instead of the joint's centre. High tibial osteotomy redirects that line toward the centre; expert guidance mandates combined surgery above 3° varus and forbids isolated repair beyond 5°.Cartilage repair fails in a varus knee because the weight-bearing line runs through the damaged medial compartment instead of the joint's centre. High tibial osteotomy redirects that line toward the centre; expert guidance mandates combined surgery above 3° varus and forbids isolated repair beyond 5°.
