The primary working hypothesis of this study is whether KeriFlex® metacarpophalangeal joint prostheses provide an equivalent result to Swanson finger joint implants in patients with rheumatoid arthritis or post-traumatic osteoarthritis. Functional status will be measured by Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire no earlier than 1 year after surgery.
Study Type
OBSERVATIONAL
Enrollment
100
Observation after implantation of metacarpophalangeal joint prostheses using KeriFlex® or Swanson finger joint implants
Observation after implantation of metacarpophalangeal joint prostheses using KeriFlex® or Swanson finger joint implants
Waldfriede Hospital
Berlin, Germany
RECRUITINGDisabilities of the Arm, Shoulder and Hand questionnaire (DASH)
Disabilities as measured by the DASH scale; No Difficulty (1), Mild Difficulty (2), Moderate Difficulty (3), Severe Difficulty (4), Unable (5)
Time frame: All patients who underwent surgery between 2014 to 2023
Functional assessment: Goniometry
ROM of each joint of the hand with a goniometer
Time frame: All patients who underwent surgery between 2014 to 2023
Short-Form 36 (SF-36)
Scored review of health questionnaire SF36: minimum value = 0 ; maximum value = 100
Time frame: All patients who underwent surgery between 2014 to 2023
Ultrasound Assessment
Patients will undergo an ultrasound scan to assess the severity of their rheumatoid arthritis.
Time frame: All patients who underwent surgery between 2014 to 2023
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