Osteoarthritis of the CMC I joint Musculoskeletal Diseases
Conditions
Interventions
This study solely consists of one consultation with a duration of approx. 45 min. After the patient provided written informed consent, the patient will undergo a clinical examination including radiogr
Sponsors
Schulthess Klinik
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Patient with any type of revision surgery at the CMC I join 2. Revision surgery between 1 and 10 years before the follow-up examination 3. Primary surgery consisted of any type of resection arthroplasty or implant arthroplasty 4. Informed consent as documented by signature
Exclusion criteria
Exclusion criteria: 1. Major surgery at another joint at the same hand (e.g. PIP arthroplasty, DIP arthrodesis) less than 6 months before the examination 2. Legal incompetence 3. Cannot read or write German language to complete the questionnaires
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Level of pain. If patients are in a Patient Acceptable Symptom State (PASS) regarding pain during activities measured on a Numeric Rating Scale (NRS; 0 = no pain, 10 = worst pain). The PASS is defined as an NRS score of = 2.5. | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Range of Motion measured using flexion and extension of the MCP and thumb Interphalangeal (IP) joint will be measured with a goniometer. The evaluation of active thumb opposition is based on the Kapandji index, ranging from 1 to 1026. Patients try to touch their fingers with the tip of the thumb. The score is 1 when patients are able to touch only the lateral side of the index finger and 10 when they can reach the volar crease of the hand. 2. Grip strength measured using a JAMAR dynamometer. 3. Key pinch measured using a pinch gauge. 4. Radiographs. If radiographs of before primary surgery are available, OA severity will be graded from stage I (normal articular contours with joint widening due to ligament laxity) to stage IV (complete thumb CMC joint deterioration and narrowed, sclerotic scaphotrapezial joint) based on the Eaton classification. At follow-up, three radiographic views of the affected hand (anterior-posterior, lateral and oblique) to assess the trapezial space ratio will be taken and the trapezial space ratio will be calculated. 5. Hand function measured using the Brief Michigan Hand Outcomes Questionnaire (MHQ). 6. Satisfaction measured using two additional questions about satisfaction in the consultation. 7. Sociodemographic and disease-related data which will be extracted from the medical records: Age, gender, diagnosis, date and type of primary and revision surgery/surgeries, indication for primary and revision surgery/surgeries, affected side, date of diagnosis, complications after primary and revision surgery/surgeries, other surgeries performed in the same session (e.g. carpal tunnel release), clinical data (range of motion, strength). 8. Adverse events that had been occurred during or after primary and revision surgery will be extracted out of the medical records and patients will be asked about additional events not documented in | — |
Countries
Switzerland
Outcome results
None listed