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The purpose of this study is to examine variabel pressure gradients of the 1st toe, 2-5th toes and the metatarsal distal caput in patients who have had surgery with a partial proximal hemiarthroplasty in the 1st metatarsalphalangeal joint (MTP) between 2006-2014.
Also, to examine these variables and compare them to the totalt range of motion and pain, to find out if the measured pedobar pressure can be used identify the well treated patient and the poorly treated patient.
The pedobar pressure gradients will be compared with a control group with healthy feet.
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| x-ray and pedobar foot pressure mapping | Other |
| Measure | Description | Time Frame |
|---|---|---|
| Plantar forces under the hallux and the forefoot in patients operated with a hemiCAP in the 1st MTPJ. | Plantar forces are measured under the hallux and the forefoot (plantar pressure (kPa), maximal force (N), and force/time (N/s)) is measured by the Emed foot pressure mapping system. | One examination for each patient, approximately 30 min. |
| Measure | Description | Time Frame |
|---|---|---|
| Range of motion (degrees) | Unit: degrees. ROM of the hemicap operated 1st MTPJ | One examination for each patient, approximately 30 min. |
| Level of pain | Visual analog scale, 1-10 of the hemicap operated foot |
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Inclusion Criteria:
Exclusion Criteria:
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Patient who has had an operation with proximal hemiarthroplasty (hemicap) 1st MTP proximal prosthetics 2006-2014 in Hvidovre Hospital, Glostrup Hospital or Hamlet-Aleris Hospital.
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hvidovre Hospital | Hvidovre | Copenhagen | 2650 | Denmark |
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| ID | Term |
|---|---|
| D020859 | Hallux Rigidus |
| ID | Term |
|---|---|
| D005531 | Foot Deformities, Acquired |
| D005530 | Foot Deformities |
| D009140 | Musculoskeletal Diseases |
| D007592 | Joint Diseases |
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| ID | Term |
|---|---|
| D014965 | X-Rays |
| ID | Term |
|---|---|
| D060733 | Electromagnetic Radiation |
| D055590 | Electromagnetic Phenomena |
| D060328 | Magnetic Phenomena |
| D055585 | Physical Phenomena |
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| One examination for each patient, approximately 30 min. |
| D011827 | Radiation |
| D011839 | Radiation, Ionizing |