Bilateral sensory and motor effects of unilateral combined treatment in patients with carpo-metacarpal osteoarthritis
| ISRCTN | ISRCTN37143779 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN37143779 |
| Secondary identifying numbers | N/A |
- Submission date
- 04/08/2012
- Registration date
- 09/08/2012
- Last edited
- 17/12/2020
- Recruitment status
- No longer recruiting
- Overall study status
- Completed
- Condition category
- Musculoskeletal Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Plain English summary of protocol
Background and study aims
Osteoarthritis is a condition that causes joints to become painful and stiff, such as the carpometacarpal (CMC) joint of the thumb. Thumb CMC osteoarthritis is a common condition after the age of 50, especially in women. The main cause of thumb CMC osteoarthritis is deterioration of the surfaces of the joint and abnormal bone growth, which results in pain at the base of the thumb. The aim of this study is to assess changes in the pressure sensitivity and pinch grip force of patients with thumb CMC osteoarthritis after mobilization of the affected hand.
Who can participate?
Patients aged 65–90 with CMC osteoarthritis
What does the study involve?
Participants are randomly allocated into either the combined treatment group or the placebo (dummy treatment) group. The combined treatment consists of Kaltenborn, radial and median nerve mobilization and hand exercises of the dominant hand during 12 sessions over 4 weeks. Participants in the placebo group attend the same number of sessions as those in the combined treatment group, but they receive ultrasound therapy for 10 minutes on the affected hand. Pain, pinch strength and grip strength are measured before treatment and after 1 month and 2 months.
What are the possible benefits and risks of participating?
Not provided at time of registration
Where is the study run from?
Local Health Authority, Collegno (Italy)
When is the study starting and how long is it expected to run for?
January 2012 to April 2012
Who is funding the study?
Investigator initiated and funded (Italy)
Who is the main contact?
Dr Jorge Hugo Villafañe
mail@villafane.it
Contact information
Dr Jorge Hugo Villafañe
Scientific
Scientific
Reg. Generala 11/16
Piossasco
10045
Italy
| mail@villafane.it |
Study information
| Study design | Randomized controlled trial |
|---|---|
| Primary study design | Interventional |
| Secondary study design | Randomised controlled trial |
| Study setting(s) | Hospital |
| Study type | Treatment |
| Participant information sheet | Not available in web format, please use the contact details to request a patient information sheet |
| Scientific title | Bilateral sensory and motor effects of unilateral combined treatment in patients with carpo-metacarpal osteoarthritis: a randomized clinical trial |
| Study objectives | Thumb carpo-metacarpal (CMC) osteoarthritis (OA) is a common condition after the age of 50, especially in female. The main cause of thumb CMC OA is a degenerative progressive alteration of the thumb CMC joint. This degeneration includes chronic deterioration of superficial surfaces of the joint and ectopic bone regeneration, which results in pain at the base of the thumb. Central sensitization is defined as an intensification of the responsiveness of central pain-signaling neurons from low-threshold mechanoreceptors. Central sensitization includes changes in sensory processing and down regulation of descending pain-inhibitory mechanisms. The importance of central sensitization processes underlies a mechanism of pain in OA pain which has recently gained interest. |
| Ethics approval(s) | Local Health Authority, Collegno, Italy [Residenze Sanitarie Assistenziali Azienda Sanitaria Locale], 10/12/2008, ref: 93571/c |
| Health condition(s) or problem(s) studied | Thumb carpo-metacarpal osteoarthritis |
| Intervention | Treatment group Kaltenborn mobilization: 1. The therapist grasps the right thumb metacarpal bone of the patient with his right thumb-index fingers 2. The therapist distracts the joint retracting the thumb and gliding the first metacarpal bone in a posterior-anterior direction 3. A posterior-anterior gliding of short amplitude with distraction of the thumb CMC joint was applied for 3 minutes with a 1 minute pause 4. The mobilization sequence was repeated 3 times Median nerve mobilization. 1. The patient was positioned in supine and the therapist was seated 2. The physical therapist induces shoulder girdle depression, gleno-humeral abduction and lateral rotation, supination of the forearm, wrist, thumb, and finger extension of the patients arm 3. The slider neurodynamic technique of the median nerve consists of alternation of elbow extension (loads the median nerve) and wrist flexion (unloads the median nerve), with elbow flexion (unloading) and wrist extension (loading) 4. The range of motion was: wrist 0-60° extension; elbow 90-165° extension depending on the tissue resistance 5. The slider intervention was completed over 5-10 minutes in two sets of 5min each with 1min rest between sets 6. Speed and amplitude of movement were adjusted such that no pain was produced during the technique Radial nerve mobilization: 1. Treatment was performed in six sessions over four weeks and was applied to the dominant hand three times during a four-minute period with one-minute pauses between periods 2. The technique consisted of a sliding mobilization of the proximal-distal radial nerve 3. To begin the technique, the patient was positioned in supine and the physiotherapist was seated 4. The physiotherapist depressed the patients shoulder girdle, extended the patients elbow and then internally rotated the arm 5. The patients wrist, thumb and all the fingers were flexed. Finally ulnar deviation of the hand was added 6. This combination of movements is hypothesized to cause stress the radial nerve 7. Once the upper extremity was positioned two movements were done as follows: 7.1. Soulder depression was applied simultaneously with elbow flexion and wrist extension 7.2. Shoulder elevation is performed with elbow extension and wrist flexion and ulnar deviation 8. These motions are alternated at a rate of approximately 2 seconds per cycle (1 second into extension and 1 second into flexion) Hand Exercises: The first six exercises consisted of active range of motion movements of the hand designed to improve joint flexibility. The last three exercises were designed to strengthen grip and pinch grips by using a non-latex polymer ball: the Thera-Band Hand Exerciser (The Hygenic Corporation, Akron, OH). The hand exerciser is color coded by approximate resistance level at 50% compression, with yellow at 0.68 kg, red at 1.36 kg, green at 2.27 kg, and blue at 3.64 kg. Placebo technique (control): 1. Participants in the placebo group attended the same number of sessions as those in the treatment group, but they received intermittent ultrasound therapy for 10 minutes with an intensity of 0 watts/cm^2 to on the hypothenar area of the dominant hand 2. Gel was used as required |
| Intervention type | Other |
| Primary outcome measure | 1. Mechanical pain sensitivity: 1.1. Pain sensitivity was determined by measuring pressure pain threshold (PPT) 1.2. Measurements were performed with a Mechanical Pressure Algometer (Wagner Instruments, Greenwich, Connecticut, USA) with a 1cm2 rubber-tipped plunger mounted on a force transducer was used for measuring PPT 1.3. Pressure was applied at a rate of 30 kPa/s 1.4. The mean of three measurements was calculated and used for the main analysis 1.5. Previous papers have reported an intraexaminer reliability of this procedure ranging from 0.6 to 0.97, while the interexaminer reliability ranged from 0.4 to 0.98 1.6. The following points were evaluated: 1.6.1. TM joint at the bottom of the anatomical snuffbox, tubercle of the scaphoid bone and unciform apophysis of the hamate bone 1.6.2. Three measurements were made with a one-minute pause between them 1.6.3. Although pain from deep tissue is difficult to assess precisely, PPT have been found useful in assessing pain reactions in OA patients 2. Pain evaluation: 2.1. The main outcome of the study was pain intensity 2.2. The intensity of thumb CMC joint pain was assessed with a 100mm visual analogue scale (VAS) 2.3. The VAS is a 100mm line anchored with a 0 at one end representing no pain and 100 at the other end representing the worst pain imaginable. 2.4. The VAS was selected as the main outcome measure based on its ability to detect changes with a minimal clinically important difference (MCID) ranging from 9 to 11 mm 3. Motor performance: 3.1. Pinch strength 3.1.1. The pinch strength was evaluated with a mechanical pinch gauge (Baseline, NY, USA) in the sitting position with the shoulder adducted and neutrally rotated and the elbow flexed at 90° 3.1.2. Two different measurements were taken. First the tip pinch between index and thumb fingers is measured. Then the tripod pinch, between index and, middle fingers and the thumb is measured 3.1.3. The reliability of pinch strength has been found to be high (Intra-class correlation coefficient [ICC]= 0.93) 3.2. Grip strength 3.2.1. Grip strength was assessed with a grip dynamometer (Baseline, NY, USA) with the patient in the sitting position 3.2.2. This procedure has shown to have a precision of ± 3% (15-17) 3.2.3. The reliability of grip strength has been reported to be high (ICC: 0.82- 0.97) Measurements were taken before intervention and after 1 and 2 months. |
| Secondary outcome measures | 1. The Beck Depression Inventory (BDI) 1.1. Review of internal consistency for the BDI ranges from 0.73 to 0.92, with a mean of 0.86, with alpha coefficients of 0.86 and 0.81 for psychiatric and non-psychiatric populations, respectively 1.2. The BDI observed showed high discrimination of depressive symptoms (75-100%) 2. State-Trait Anxiety Inventory (STAI) 2.1. This is a self rated questionnaire divided in two parts: anxiety-trait (referring to personality aspects) and anxiety-state (referring to systemic aspects of the context) 2.2. Responses are in a 1-4 scale 2.3. Anxiety-state refers to how individuals feel at the moment and anxiety-trait to how they generally feel 2.4. Each part varies from 20 to 80 points, and the scores indicate low (0-30), medium (31-49) or high (50 or more) anxiety levels Measurements were taken before intervention and after 1 and 2 months. |
| Overall study start date | 16/01/2012 |
| Completion date | 14/04/2012 |
Eligibility
| Participant type(s) | Patient |
|---|---|
| Age group | Adult |
| Sex | Both |
| Target number of participants | 60 |
| Total final enrolment | 60 |
| Key inclusion criteria | 1. Patients who used the dominant hand systematically such as ex-factory workers and home workers 2. Diagnosed with secondary thumb carpometacarpal osteoarthritis (CMC OA) in the dominant hand by X-ray detection of stage III and IV according to the Eaton-Littler-Burton Classification |
| Key exclusion criteria | 1. Patients if they scored more than 4 on the Becks Depression Inventory and/or more than 30 on the State Trait Anxiety Inventory (STAI) 2. Patients with a medical history of carpal tunnel syndrome, arthritis, surgical interventions on the thumb CMC joint, or DQuervains tenosynovitis 3. Patients presenting degenerative or non-degenerative neurological conditions in which pain perception was altered |
| Date of first enrolment | 16/01/2012 |
| Date of final enrolment | 14/04/2012 |
Locations
Countries of recruitment
- Italy
Study participating centre
Reg. Generala 11/16
Piossasco
10045
Italy
10045
Italy
Sponsor information
Local Health Authority, Collegno [Azienda Sanitaria Locale, Collegno] (Italy)
Government
Government
c/o Dr Jorge Hugo Villafañe
Via C. colombo 2/9
Collegno
10093
Italy
| mail@villafane.it | |
"ROR" |
https://ror.org/05xcney74 |
Funders
Funder type
Other
Investigator initiated and funded (Italy)
No information available
Results and Publications
| Intention to publish date | |
|---|---|
| Individual participant data (IPD) Intention to share | No |
| IPD sharing plan summary | Not provided at time of registration |
| Publication and dissemination plan | Not provided at time of registration |
| IPD sharing plan |
Study outputs
| Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
|---|---|---|---|---|---|
| Results article | results | 01/04/2013 | 17/12/2020 | Yes | No |
Editorial Notes
17/12/2020: Publication reference and total final enrolment added.
23/06/2017: Plain English summary added.
