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)?
Sim = 1
Incerto = 0,5
Não relevante = 0
Não = 0
A Avaliação dos Critérios de Relato avalia a transparência com que os autores relatam as caraterísticas metodológicas e do ensaio na publicação. A avaliação está dividida em cinco categorias que são apresentadas de seguida.
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
O Índice de Fragilidade é uma ferramenta que auxilia na interpretação de achados significativos, fornecendo uma medida de força para um resultado. O Índice de Fragilidade representa o número de eventos consecutivos que precisam de ser adicionados a um resultado dicotómico para que o resultado deixe de ser significativo. Um número pequeno representa um resultado mais fraco e um número grande representa um resultado mais forte.
Porque é que este estudo era necessário agora?
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.
Qual era a principal questão de investigação?
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.
De que é que me devo lembrar mais?
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.
Como é que isto afectará o tratamento dos meus doentes?
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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