Knee Pain as the Reason for Encounter in General Practice

Table 4

Total morbidity (%) found among knee pain patients (based on the International Classification of Primary Care; Chapters A, L, N, P, and T) of the German SESAM 2 study (𝑛 = 127 patients with knee pain) and the Dutch Transition project (DTP) for newly occurred (𝑛 = 5,430) and previously known (𝑛 = 2,234) knee pain.

Result of encounter (ICPC-2 code)	SESAM 2	DTP (new)	DTP (known)
Osteoarthrosis of knee (L90) or osteoarthritis (L89)	47.2	9.4	27.9
Other musculoskeletal diseases (L99)	32.3	6.1	5.5
Obesity (T82)	12.6	<0.1	<0.1
Other osteoarthrosis (L91)	7.9	0.0	0.0
Varicose veins of leg (K95, excel. S97)	7.1	0.4	0.3
Other injury of the musculoskeletal system (L81)	3.9	6.5	3.7
Osteoarthritis of spine (L84)	3.9	<0.1	0.1
Inflammation of joint, tendonitis (L87)	3.9	0.2	<0.1
Effect of prosthetic device (A89)	3.1	0.0	0.0
Sprains/strains of knee (L78)	3.1	8.7	6.7
Rheumatic arthritis (L88)	3.1	0.1	0.9
Lumbar disc lesion/radiation (L86)	2.4	0.2	0.6
Osteoporosis (L95)	1.6	<0.1	<0.1
Hypochondriacal disorder (P75)	1.6	<0.1	0.1
Peripheral neuritis/neuropathy (N94)	0.8	0.0	0.0
Knee symptoms/complaints (L15)	—	43.9	32.8