:format(webp)/cdn.mskdoctors.com/storage/2026/7/U6DuSYgVOdAX9tLjZF255RtTNw5IxIIi.jpg)
OATS or MACI for mid-size knee cartilage defectsWithin the 2–4 cm² range, cartilage defects are large enough that a single plug fails to cover them, yet small enough that two repair techniques remain viable: osteochondral autograft restores cartilage and bone in one operation but creates coverage gaps, whilst matrix-induced autologous chondrocyte implantation requires two operations with laboratory…Within the 2–4 cm² range, cartilage defects are large enough that a single plug fails to cover them, yet small enough that two repair techniques remain viable: osteochondral autograft restores cartilage and bone in one operation but creates coverage gaps, whilst matrix-induced autologous chondrocyte implantation requires two operations with laboratory culture but accommodates irregular shapes without gaps.
:format(webp)/cdn.mskdoctors.com/storage/2026/7/8c3WGhTDSa50H5g1A54m11iCswgvY7B4.jpg)
Single-stage vs two-stage ACI for cartilage repairTraditional two-stage ACI involves two general anaesthetics separated by a four-to-six-week cell culture period; STACI performs both stages in a single theatre session, requiring one general anaesthetic and eliminating the inter-stage gap.Traditional two-stage ACI involves two general anaesthetics separated by a four-to-six-week cell culture period; STACI performs both stages in a single theatre session, requiring one general anaesthetic and eliminating the inter-stage gap.
:format(webp)/cdn.mskdoctors.com/storage/2026/7/9g6eTwTAu0SFvMuWK32Dks5irUrV7k8r.jpg)
OATS for Osteochondral Lesions of the TalusLesions larger than approximately 150 mm² fail bone marrow stimulation treatment 97% of the time. OATS transplants genuine hyaline cartilage to replace the weakening fibrocartilage scar that microfracture produces in larger defects.Lesions larger than approximately 150 mm² fail bone marrow stimulation treatment 97% of the time. OATS transplants genuine hyaline cartilage to replace the weakening fibrocartilage scar that microfracture produces in larger defects.
:format(webp)/cdn.mskdoctors.com/storage/2026/7/h2l8AY32OKGL30hwbwRejgL6RXeuwgdE.jpg)
Which specialist to see for shoulder impingement painShoulder impingement is degenerative tendon wear, not acute inflammation, which explains why anti-inflammatory drugs fail and recovery takes months, not weeks.Shoulder impingement is degenerative tendon wear, not acute inflammation, which explains why anti-inflammatory drugs fail and recovery takes months, not weeks.
:format(webp)/cdn.mskdoctors.com/storage/2026/7/K3jsBbp5nFdNAw90o7QvOl2QvEgIxbFS.jpg)
ACI for Ankle Cartilage DefectsMicrofracture produces fibrocartilage that deteriorates within two to three years for ankle cartilage lesions over 15 mm in diameter; autologous chondrocyte implantation regenerates more durable, hyaline-like cartilage that more closely resembles native tissue for larger defects.Microfracture produces fibrocartilage that deteriorates within two to three years for ankle cartilage lesions over 15 mm in diameter; autologous chondrocyte implantation regenerates more durable, hyaline-like cartilage that more closely resembles native tissue for larger defects.
:format(webp)/cdn.mskdoctors.com/storage/2026/7/QALYQHFDLwn2IanxAk0xaAQIJ42CuHt3.jpg)
Who Qualifies for OATS Knee Cartilage RepairOATS and mosaicplasty repair focal knee cartilage defects of 1–4 cm² with hyaline cartilage in a single operation; suitable for physically active patients aged 16–50, both achieve return to sport in 66–91% of cases.OATS and mosaicplasty repair focal knee cartilage defects of 1–4 cm² with hyaline cartilage in a single operation; suitable for physically active patients aged 16–50, both achieve return to sport in 66–91% of cases.
:format(webp)/cdn.mskdoctors.com/storage/2026/7/kmMxPuMwu9egb4OdtoM6MP7cn9CjTQ4c.jpg)
When knee cartilage repair is worth consideringCartilage lacks a blood supply and cannot self-heal, but surgical or minimally invasive repair can restore focal defects in otherwise healthy joints, potentially delaying knee replacement by years or decades.Cartilage lacks a blood supply and cannot self-heal, but surgical or minimally invasive repair can restore focal defects in otherwise healthy joints, potentially delaying knee replacement by years or decades.
:format(webp)/cdn.mskdoctors.com/storage/2026/7/p4I1DcXLxDW182tvBqgfJmV1W71YblUh.jpg)
OCA vs MACI for large knee cartilage defectsMACI (matrix-induced autologous chondrocyte implantation) is a surface repair requiring intact subchondral bone; osteochondral allograft (OCA) replaces both cartilage and bone. When knee cartilage defects breach underlying bone, OCA addresses what MACI cannot.MACI (matrix-induced autologous chondrocyte implantation) is a surface repair requiring intact subchondral bone; osteochondral allograft (OCA) replaces both cartilage and bone. When knee cartilage defects breach underlying bone, OCA addresses what MACI cannot.
:format(webp)/cdn.mskdoctors.com/storage/2026/7/W20e1XfRVKpsrcCGwKb2Gk2j0advDoJN.jpg)
Who treats a rotator cuff tear in the UKMany NHS trusts refer rotator cuff tear cases first to an Extended Scope Practitioner — a senior physiotherapist who can order imaging, administer injections, and refer directly to a surgeon — rather than directly to an orthopaedic consultant. This deliberate pathway removes administrative steps rather than adding them.Many NHS trusts refer rotator cuff tear cases first to an Extended Scope Practitioner — a senior physiotherapist who can order imaging, administer injections, and refer directly to a surgeon — rather than directly to an orthopaedic consultant. This deliberate pathway removes administrative steps rather than adding them.
:format(webp)/cdn.mskdoctors.com/storage/2026/7/8Ybarca5EyikHWwPNDgHdzL8O444HHna.jpg)
AMIC vs MACI for knee cartilage repairStandalone microfracture for knee cartilage defects has less than 60% survivorship at three years; AMIC adds a collagen membrane to stabilize repair, whilst MACI uses cultured chondrocytes and shows superiority in the SUMMIT trial for lesions over 3 cm².Standalone microfracture for knee cartilage defects has less than 60% survivorship at three years; AMIC adds a collagen membrane to stabilize repair, whilst MACI uses cultured chondrocytes and shows superiority in the SUMMIT trial for lesions over 3 cm².
:format(webp)/cdn.mskdoctors.com/storage/2026/7/74YTQQTyjHqGW0SCQyz2DVitXQ2VE6a3.jpg)
How single-stage ACI differs from MACIMACI repairs cartilage defects over two operations, with weeks between them for external cell expansion; STACi compresses the entire process—harvesting, processing, and implantation—into a single surgical session.MACI repairs cartilage defects over two operations, with weeks between them for external cell expansion; STACi compresses the entire process—harvesting, processing, and implantation—into a single surgical session.
:format(webp)/cdn.mskdoctors.com/storage/2026/7/rvnlMrAe4cfqDVMMrbATGvrCGy4Ef1bh.jpg)
Is ChondroFiller available on the NHSChondroFiller is not available on the NHS anywhere in the UK; patients must access this collagen cartilage scaffold privately, with single injections typically costing around £3,000.ChondroFiller is not available on the NHS anywhere in the UK; patients must access this collagen cartilage scaffold privately, with single injections typically costing around £3,000.
