Ahlbäck classification of knee osteoarthritis
Last revised by Henry Knipe on 19 Apr 2020
Citation, DOI, disclosures and article data
Citation:
Mudgal P, Knipe H, Babu V, et al. Ahlbäck classification of knee osteoarthritis. Reference article, Radiopaedia.org (Accessed on 11 Dec 2023) https://doi.org/10.53347/rID-27069
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rID:
27069
Article created:
19 Jan 2014, Prashant Mudgal
Disclosures:
At the time the article was created Prashant Mudgal had no recorded disclosures.
View Prashant Mudgal's current disclosuresLast revised:
Disclosures:
At the time the article was last revised Henry Knipe had no recorded disclosures.
View Henry Knipe's current disclosuresRevisions:
13 times, by 8 contributors - see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Ahlback classification (knee osteoarthritis)
- Ahlbäck system for the osteoarthritis of knee joint
- Ahlbäck systems for the osteoarthritis of knee joint
- Ahlbäck classification of osteoarthritis of the knee joint
The Ahlbäck classification is one of many ways to grade knee osteoarthritis.
Classification
- grade 1: joint space narrowing (less than 3 mm)
- grade 2: joint space obliteration
- grade 3: minor bone attrition (0-5 mm)
- grade 4: moderate bone attrition (5-10 mm)
- grade 5: severe bone attrition (more than 10 mm)
History and etymology
This classification was proposed by Ahlback et al. in 1968.
See also
References
- 1. Petersson IF, Boegård T, Saxne T et-al. Radiographic osteoarthritis of the knee classified by the Ahlbäck and Kellgren & Lawrence systems for the tibiofemoral joint in people aged 35-54 years with chronic knee pain. Ann. Rheum. Dis. 1997;56 (8): 493-6. doi:10.1136/ard.56.8.493 - Free text at pubmed - Pubmed citation
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