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Table 1 Characteristics of the study population

From: Two-component surface replacement implants compared with perichondrium transplantation for restoration of Metacarpophalangeal and proximal Interphalangeal joints: a retrospective cohort study with a mean follow-up time of 6 respectively 26 years

  Perichondrium (25 joints in 22 patients) SR
(138 joints in 102 patients)
Joints MCP PIP MCP PIP
No of joints 15 10 16 122
No of patients 15 7 16 86
Female 1 4 9 74
Male 14 3 7 12
Median age at index surgery 61 (18–82) 44 (18–51) 50 (26–61) 61 (27–78) 64 (24–82)
Posttraumatic osteoarthritis 10 3 2 22
Postinfectious osteoarthritis 3 0 0 0
Degenerative osteoarthritis 2 2 9 71
Rheumatoid osteoarthritis 0 5 5 29