Table 2. Mean Scores for Surgical (SMPA) vs. Non-Surgical Subjects.
| Preoperative | 2-Year | 3-Year | ||||
|---|---|---|---|---|---|---|
| SMPA | Non- SMPA |
SMPA | Non- SMPA |
SMPA | Non- SMPA |
|
|
| ||||||
| MHQ1 | N = 63 | N = 93 | N = 48 | N = 79 | N = 40 | N = 71 |
|
| ||||||
| Function | 37 (22) | 58 (19)** | 62 (19) | 58 (22) | 59 (19) | 58 (21) |
| ADL | 34 (26) | 59 (24)** | 58 (29) | 61 (25) | 55 (27) | 61 (27) |
| Work | 41 (22) | 59 (23)** | 54 (27) | 61 (26) | 51 (28) | 61 (27) |
| Pain | 49 (26) | 36 (25)* | 36 (25) | 32 (25) | 38 (26) | 31 (24) |
| Aesthetics | 33 (22) | 47 (24)** | 66 (23) | 53 (21) | 60 (21) | 54 (20) |
| Satisfaction | 27 (20) | 47 (25)** | 61 (27) | 51 (25) | 55 (25) | 53 (25) |
| Overall | 37 (17) | 56 (19)** | 61 (21) | 59 (20) | 57 (20) | 59 (21) |
|
| ||||||
| AIMS22 | N = 63 | N = 93 | N = 48 | N = 79 | N = 40 | N = 71 |
|
| ||||||
| Physical | 4.0 (2.4) | 2.5 (1.9)** | 3.3 (2.2) | 2.5 (2.0) | 3.4 (2.3) | 2.6 (2.2) |
| Affect | 4.2 (1.9) | 3.1 (1.8)** | 3.7 (1.8) | 2.9 (1.7) | 3.7 (2.3) | 2.7 (1.6) |
| Symptom | 5.7 (2.8) | 4.3 (2.4)* | 4.6 (2.4) | 3.9 (2.3) | 5.0 (2.3) | 4.0 (2.5) |
| Social interaction | 4.1 (2.0) | 3.6 (1.4)* | 4.1 (2.1) | 3.7 (1.3) | 4.1 (2.1) | 3.5 (1.6) |
|
| ||||||
|
Objective Measurements |
N = 67 | N = 95 | N = 45 | N = 74 | N = 39 | N = 66 |
|
| ||||||
|
Grip Strength (kg) |
5.4 (5.2) | 8.6 (7.4)* | 6.1 (4.4) | 10.6 (7.5) | 6.0 (4.2) | 9.7 (5.9) |
|
Key (lateral) pinch (kg) |
3.5 (2.2) | 4.0 (1.8) | 3.2 (1.9) | 3.7 (1.9) | 3.0 (2.0) | 3.4 (1.8) |
|
2-point (tip) pinch (kg) |
2.5 (1.6) | 3.1 (1.5)* | 2.4 (1.5) | 2.9 (1.5) | 2.2 (1.4) | 2.7 (1.3) |
|
3-jaw (palmar) pinch (kg) |
2.5 (1.5) | 3.2 (1.4)* | 2.5 (1.4) | 3.2 (1.5) | 2.4 (1.5) | 2.7 (1.2) |
|
Jebson-Taylor (s)3 |
55 (27) | 43 (12)** | 43 (11) | 39 (10) | 44 (13) | 40 (12) |
| Ulnar Drift3 | 37 (15) | 35 (15) | 14 (9) | 33 (16) | 14 (11) | 34 (17) |
| Extensor Lag3 | 65 (23) | 47 (18)** | 25 (14) | 48 (23) | 29 (15) | 53 (21) |
|
MCP Arc of Motion |
20 (15) | 37 (18)** | 33 (17) | 33 (20) | 30 (14) | 29 (16) |
|
PIP Arc of Motion |
56 (27) | 70 (22)** | 66 (25) | 67 (22) | 64 (26) | 67 (21) |
Abbreviations: AIMS2, Arthritis Impact Measurement Scales 2, ADL, activities of daily living; SMPA, Silicone Metacarpophalangeal Joint Arthroplasty, MCP, Metacarpophalangeal Joint, PIP, Proximal Interphalangeal Joint.
Cell values are means (SD).
1
All MHQ domain scores and overall score can range from 0 to 100, and higher scores correspond to better outcomes, except for pain where higher scores correspond to greater pain.
2
All AIMS2 subscales can range from 0 to 10, and, higher scores correspond to worse outcome.
3
Higher values correspond to worse outcomes.
*
P < 0.05
**
P < 0.001 for between group difference at baseline.