Narrow Results

Background: Approximately 5% of patients experience recurrent symptoms after carpal tunnel release (CTR) and need revision surgery. Several surgical techniques have been described for recurrent carpal tunnel syndrome (CTS) and the abductor digiti minimi (ADM) flap is one of them. Literature concerning clinical results of the ADM flap for recurrent CTS is lacking. The aim of this study is to evaluate the outcomes of the ADM flap for recurrent CTS.

Methods: We treated seven patients with the ADM flap (eight hands) between July 2016 and February 2019. Patient characteristics were assessed, and patients were asked about their symptoms (pain, sensation and paresthesia) before and after surgery. Postoperatively, we administered CTS symptoms, satisfaction with the surgery, patient-reported outcome measurements (BCTQ and QuickDASH) and whether they would undergo the same surgery again. Complications were also recorded

Results: The median follow-up was 14 months. The success rate measured by CTS symptoms was 88%. Seven out of eight patients were satisfied with the results and two patients would not elect to undergo the same procedure again. Two patients reported having a weaker grip at the donor site. The median BCTQ symptom and function scores were 2.9 (1.7–3.5) and 2.6 (1.8–3.0) respectively. The median QuickDASH score was 41 (IQR 22–52). Complications reported were wound dehiscence (n = 1) and hypertrophic scar (n = 1).

Conclusions: The outcomes of the ADM flap in patients with recurrent CTS were like other commonly used procedures in recurrent CTS.

Level of Evidence: Level IV (Therapeutic)

Background: Although unlinked total elbow arthroplasty (TEA) is a treatment option for end-stage rheumatoid arthritis (RA) of the elbow, its long-term outcomes were inferior. Moreover, revision TEA could be technically challenging. The unlinked TEA procedure comprises the ease of implant removal at revision and advantage of bone preservation. This study evaluated the clinical outcomes in patients who underwent revision TEA using primary unlinked TEA for rheumatoid elbows. It also aimed to determine whether selecting the unlinked prosthesis for the primary TEA would make revision more accessible and successful.

Methods: We retrospectively reviewed data of 13 consecutive patients (14 elbows) who underwent revision TEAs for implant failure due to different aetiologies, excluding septic loosening. Three different unlinked TEA implants were used: the Kudo type-5 with all-polyethylene (AP) ulnar component, Kudo type-5 with metal-backed (MB) ulnar component and K-Now TEA. We evaluated the patients’ pre- and postoperative outcomes, including the range of motion, pain score and Mayo Elbow Performance Index (MEPI).

Results: Among the 14 elbows, 11 were revised using the Kudo type-5 ulnar component (nine and two with AP and MB ulnar component, respectively), and three using the K-Now. We found that each model of TEA had different tendencies to indication for revision surgery. Three more resulted in further failure. The clinical outcomes were assessed in the 11 surviving elbows. Eight of the 11 elbows showed no pain at the final follow-up. However, the remaining three showed only mild pain. The MEPI revealed that seven cases were excellent, two were good and two were fair.

Conclusions: The mode of implant failure was largely dependent on the implant design. Furthermore, partial revision with the same implant design was sufficient in managing implant failure in the early phase. However, conversion from unlinked to linked design could be recommended in patients with progressive failure or instability.

Level of Evidence: Level IV (Therapeutic)

Background: Revision surgery after syndactyly separation is challenging. Web creep and scarring have a great impact on function and appearance of the hand. There is a paucity of literature on revision surgery for syndactyly. The aim of this study is to present the outcomes of revision surgery for syndactyly.

Methods: This retrospective study included patients who required revision surgery after syndactyly release for web creep, scar contracture affecting motion and/or bony deformities. Web creep was graded using the Withey classification and scars were graded as minimal, mild, moderate and severe based on the impact on range of motion (ROM). All patients underwent dorsal and volar triangular flaps for correction for web creep, multiple Z-plasty and/or proximal interphalangeal joint (PIPJ) release for correction of scar contractures and osteotomy for correction of angular/rotational bony deformities. Improvement in web creep grading, scar contracture and change in angular and/or rotational deformities were recorded.

Results: The study included 9 hands in 7 patients who required surgery for 13 web creeps (four grade 2, four grade 3 and five grade 4), 20 scar contractures (five mild, seven moderate and eight severe), 6 angular (five ≤15° and one = 40°) and 1 rotational deformity. All web creeps improved to grade 1. Out of the 20 scar contractures, 14 improved to mild and 6 to moderate. Two patients underwent corrective osteotomy, one for rotational deformity and one for a 40° angular deformity which improved to 5°.

Conclusions: Double opposing triangular flap presents a good option for revision of the web with no recurrence of web creep after a 1-year follow-up period. We suggest a grading system which assesses the effect of scarring on finger motion. Finally, avoiding straight volar suture lines decreases the incidence of recurrence.

Level of Evidence: Level IV (Therapeutic)