Ahlback Classification Definition Essay

This classification was proposed by Ahlback et al. in 1968.

According toAhlbäck system, knee joint osteoarthritis is classified as:

  • 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)

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

Related articles

Knee pathology

The knee is a complex synovial joint that can be affected by a range of pathologies:

1. Sharma L, Kapoor D. Epidemiology of osteoarthritis. In: Moskowitz RW, Altman RD, Hochberg MC, Buckwalter JA, Goldberg VM, editors. Osteoarthritis: diagnosis and medical/surgical management. Philadelphia: Saunders Com; 2007. p. 3.

2. Loeser RF. Age-related Changes in the Musculoskeletal System and the Development of Osteoarthritis. Clin Geriatr Med. 2010;26(3):371–86.[PMC free article][PubMed]

3. Talić A, Bećirbegović S, Džanković F, Omerović Ð. Application of Intraarticular Injection in Patients with Kneeosteoarthritis. Med Žurnal. 2011;17(1):37–40.

4. Ahlbäck S. Osteoarthrosis of the knee. A radiographic investigation. Acta Radiol Diagn (Stockh) 1968;(Suppl 277):7–72. PMID: 5706059. [PubMed]

5. Losina E, Walensky RP, Reichmann WM, Holt HL, Gerlovin H, Solomon DH, Jordan JM, Hunter DJ, Suter LG, Weinstein AM, Paltiel AD, Katz JN. Impact of obesity and knee osteoarthritis on morbidity and mortality in older Americans. Ann Intern Med. 2011;154(4):217–26. doi:10.7326/0003-4819-154-4-201102150-00001. [PMC free article][PubMed]

6. Hernández-Vaquero D, Fernández-Carreira JM. Relationship between radiological grading and clinical status in knee osteoarthritis. a multicentric study. BMC Musculoskeletal Disorders. 2012 Oct 9;13(1):194.[PMC free article][PubMed]

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9. Abramson SB, Attur M. Developments in the scientific understanding of osteoarthritis. Arthritis Res Ther. 2009;11:227–36.[PMC free article][PubMed]

10. Altman R. Classification of disease: osteoarthritis. Semin Arthritis Rheum. 1991;20:40–73.[PubMed]

11. Wick MC, Jaschke W, Klauser AS. Radiological imaging of osteoarthritis of the knee. Radiologe. 2012;52(11):994–1002. doi:10.1007/s00117-012-2365-5. [PubMed]

12. Kosor S, Grazio S. Patogneza osteoartritisa. Med Jad. 2013;43:33–45.

13. Petersson IF, Boegård T, Saxne T, Silman AJ, Svensson B. 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 Aug;56(8):493–6.[PMC free article][PubMed]

14. Davies AP, Calder DA, Marshall T, Glasgow MM. Plain radiography in the degenerate knee. A case for change. J Bone Joint Surg Br. 1999 Jul;81(4):632–5.[PubMed]

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