Single- and two-incision carpal tunnel release techniques appear equally efficacious .
This report has been verified
by one or more authors of the
original publication.
OrthoEvidence Journal (OE Journal) - ACE Report
OE Journal. 2014;2(10):19 Hand (N Y). 2014 Mar;9(1):36-42. doi: 10.1007/s11552-013-9572-z.Exclusive Author Interview
Dr. J. Yao discusses a prospective randomized comparison of single-incision and two-incision carpal tunnel release
30 patients with carpal tunnel syndrome were randomized to undergo single- or two-incision carpal tunnel release to compare clinical and functional outcomes between surgical techniques. Upon analysis, results revealed no significant difference between groups with respect to the Disabilities of the Arm, Shoulder, and Hand (DASH) Questionnaire, Brigham and Womens Carpal Tunnel Questionnaire (BWCTQ) for symptom severity and functional status, grip strength, pinch strength, scar tenderness, or radial and ulnar pillar pain. The single-incision group demonstrated improved Semmes-Weinstein monofilament scores in the second finger at 6 weeks and third finger at 6+ months postoperatively when compared to the two-incision group.
Was the allocation sequence adequately generated?
Was allocation adequately concealed?
Blinding Treatment Providers: Was knowledge of the allocated interventions adequately prevented?
Blinding Outcome Assessors: Was knowledge of the allocated interventions adequately prevented?
Blinding Patients: Was knowledge of the allocated interventions adequately prevented?
Was loss to follow-up (missing outcome data) infrequent?
Are reports of the study free of suggestion of selective outcome reporting?
Were outcomes objective, patient-important and assessed in a manner to limit bias (ie. duplicate assessors, Independent assessors)?
Was the sample size sufficiently large to assure a balance of prognosis and sufficiently large number of outcome events?
Was investigator expertise/experience with both treatment and control techniques likely the same (ie.were criteria for surgeon participation/expertise provided)?
Sí = 1
Incierto = 0,5
No relevante = 0
No = 0
La evaluación de los criterios de información evalúa la transparencia con la que los autores informan de las características metodológicas y del ensayo dentro de la publicación. La evaluación se divide en cinco categorías que se presentan a continuación.
3/4
Randomization
2/4
Outcome Measurements
4/4
Inclusion / Exclusion
4/4
Therapy Description
4/4
Statistics
Detsky AS, Naylor CD, O'Rourke K, McGeer AJ, L'Abbé KA. J Clin Epidemiol. 1992;45:255-65
El Índice de Fragilidad es una herramienta que ayuda en la interpretación de hallazgos significativos, proporcionando una medida de fuerza para un resultado. El Índice de Fragilidad representa el número de eventos consecutivos que es necesario añadir a un resultado dicotómico para que el hallazgo deje de ser significativo. Un número pequeño representa un hallazgo más débil y un número grande un hallazgo más fuerte.
¿Por qué se necesitaba ahora este estudio?
Carpal tunnel release (CTR) is one of the most common surgical procedures performed in the United States. During CTR, the complete division of the flexor retinaculum is standard clinical practice, but the optimal CTR technique itself remains arguable. Previously, the authors conducted a retrospective study that reported improved function and fewer postoperative symptoms in patients that received a two-incision approach compared to single-incision technique. This randomized control trial was needed to further prospectively evaluate qualitative and quantitative postoperative outcomes between single- and two-incision CTR.
¿Cuál era la pregunta principal de la investigación?
Is single or two-incision carpal tunnel release more efficacious for treating patients with carpal tunnel syndrome, assessed up to 6+ months postoperatively?
- BWCTQ symptom severity scale (SSS), BWCTQ functional status scale (FSS), DASH scores, grip strength, and pinch strength did not differ significantly between the single- and two-incision groups at any follow-up time point (all p>0.05).
- The two incision group reduced scar tenderness, radial pillar pain, and ulnar pillar pain, although this did not reach statistical significance at any time point when compared to the single-incision group (all p>0.05). At 6+ months follow-up, no patients in the two-incision group reported scar tenderness or pillar pain.
- Semmes-Weinstein monofilament scores (measured thumb, second finger, third finger) demonstrated significantly more improvement in the single-incision group compared to the two-incision group in the second finger at 6 weeks (p=0.03) and third finger at 6 months postoperatively (p=0.04). No other statistically significant differences were observed in any finger at any other time point (p>0.05).
- A statistically significant positive correlation was observed between pre-and post-operative FSS and DASH scores in both groups (p<0.0001). A statistically significant negative correlation was observed between pre-operative and 2 week postoperative grip and pinch strength and DASH scores but these findings lost statistical significance by 6 week and 6+ month time points, with the exception of grip and pinch strength ((R= -0.80, p <0.0001) and DASH scores (R= -0.83, p <0.0001) in the single-incision group at 6+ months postoperative.
¿Qué es lo que más debo recordar?
The single-incision and two-incision techniques for carpal tunnel release were similar at 2 weeks, 6 weeks, and 6+ months postoperative with respect to Disabilities of the Arm, Shoulder, and Hand (DASH) Questionnaire, Brigham and Women's Carpal Tunnel Questionnaire (BWCTQ) for symptom severity and functional status, grip strength, and pinch strength. Less scar tenderness, and radial and ulnar pillar pain was reported in the two-incision group, although this finding did not reach statistical significance. Improved Semmes-Weinstein monofilament scores were observed in the single-incision group in the second finger at 6 weeks and third finger at 6+ months postoperative.
¿Cómo afectará esto al cuidado de mis pacientes?
Based on the results of this study, both the single- and two-incision carpel tunnel release techniques may be offered as equally efficacious treatments for patients with carpel tunnel syndrome. Future studies with larger cohorts and less patient drop-out should compare the aforementioned findings between surgical techniques. It may also be advantageous to conduct a cost-comparison between treatment groups.
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