Arthroscopic Wafer Procedure Versus Ulnar Shortening Osteotomy for Treatment of Idiopathic Ulnar Impaction Syndrome: A Randomized Controlled Trial

Managing the arthritic wrist: Complication prevention and management

Wrist arthroscopy presents a significant learning curve, necessitating various precautions to avoid complications like tendon laceration or nerve injury. Arthroscopic procedures become even more challenging in arthritic wrists due to altered anatomy and reduced joint space, which in turn increase the risk of complications. In this review article, we offer tips and tricks to minimize these risks. Despite the challenges, wrist arthroscopy remains a valuable diagnostic and therapeutic tool when performed by an experienced surgeon with thorough preoperative planning and careful patient selection.

Guidelines for the Diagnosis and Treatment of Ulnar Impaction Syndrome (2024)

Background  Ulnar impaction syndrome (UIS), also known as ulnar impaction or ulnar abutment, is a degenerative condition causing pain on the ulnar side of the wrist. It can lead to wrist bone necrosis, resulting in wrist joint stability disruption and a significant wrist function impairment. The global understanding of this condition varies, contributing to substantial differences in clinical outcomes. Purposes  This paper underscores the necessity of developing evidence-based clinical guidelines for UIS to guide clinicians in their diagnostic and therapeutic approaches. Materials and Methods  In collaboration with the Asian Pacific Wrist Association, a team of experts from various fields within the Hand Surgery Department at Huashan Hospital has collectively formulated the "Clinical Practice Guidelines for Ulnar Impaction Syndrome (2024)" (hereinafter referred to as the "Guidelines"). The development process adhered to the guidelines outlined in the World Health Organization's handbook for guideline development. Results  Ten key questions and 21 recommendations are formed. The Guidelines provide recommendations for UIS diagnosis, criteria for selecting conservative or surgical interventions, options for surgical procedures, and address various related issues. Conclusions  The collaborative effort aims to standardize clinical practices, enhance diagnostic accuracy, and improve treatment outcomes for individuals affected by UIS, with these recommendations intended to serve as a valuable reference for healthcare professionals.

Reporting of patient-reported outcomes amongst randomized clinical trials in plastic surgery: a systematic review using CONSORT-PRO

BACKGROUND

Patient-reported outcomes (PROs) are key to investigating patient perspectives in randomized controlled trials (RCTs). Standardization of PRO reporting is critical for trial generalizability and the application of findings to clinical practice. This systematic review aimed to evaluate the reporting quality of RCTs published in the top plastic surgery journals according to the consolidated standards of reporting trials (CONSORT)-PRO extension.

METHODS

We completed a comprehensive search of MEDLINE, Embase, and Cochrane Central Register of Controlled Trials. All RCTs with a validated PRO endpoint published in the top 10 plastic surgery journals (based on the 2021 Web of Science Impact Factor) from 2014 to 2023 were included. Two reviewers independently extracted data and scored the included studies using the CONSORT-PRO checklist. Univariate regression was applied to assess factors associated with reporting adherence. Studies were assessed for their risk of bias using the Cochrane Risk of Bias 2.0 tool.

RESULTS

A total of 88 RCTs were included. PROs were the primary endpoint in 50 (57%) and the secondary endpoint of 38 (43%) studies. Mean overall reporting adherence was poor (39% (±12) and 36% (±13) in studies with PRO as primary and secondary endpoints, respectively). The presence of industry support was significantly associated with greater adherence.

CONCLUSIONS

There is low adherence to the CONSORT-PRO extension among plastic surgery RCTs published in the top 10 plastic surgery journals. We encourage journals and authors to endorse and apply the CONSORT-PRO extension. This may optimize the dissemination of clinical findings from RCTs and assist patient-centered care.

Algorithm-Guided Treatment of Ulna Impaction Syndrome: A 10-Year Follow-Up Study of Ulna Shortening Osteotomy and Wafer Procedure

Background: Ulnar impaction syndrome (UIS) is a common degenerative wrist condition which results from positive ulnar variance, leading to an overload on the ulnar carpus. Ulnar shortening osteotomy (USO) and the arthroscopic wafer procedure (AWP) are established therapies for UIS if conservative management fails. This study assessed an algorithm-guided treatment of UIS over a period of 10 years. Methods: This prospective observational study compared the outcome of 54 patients who underwent either USO or AWP for UIS based on a predefined treatment algorithm. The mean follow-up period was 10 years. Primary outcome parameters were the visual analogue scale (VAS) for pain and the Disabilities of the Arm, Shoulder, and Hand questionnaire (DASH), whereas secondary outcome parameters were grip and pinch strength and range of motion. Results: The median preoperative ulnar variance was 2.6 mm in the USO group and 2.0 mm in the AWP group. The postoperative average ulnar variance was 0 mm in both groups. The preoperative pain at rest was 3.4 in the USO group and 2.3 in the AWP group. One year after surgery, there was a significant reduction to VAS 0.7 and 0.2, respectively. These results persisted to the 10-year follow-up (VAS 0.9 and 0.2). The pain in motion also decreased significantly in the first year (from 6.8 and 6.7 to 2.2 and 2.1), as well as after 10 years (2.4 and 1.0). The preoperative DASH score averaged 31.3 in the USO group and 35.8 in the AWP group. At the 10-year follow-up, the DASH of both groups decreased significantly to 4.35 in the AWP group compared to 12.7 in the USO group. Conclusions: Our data show that, when using our algorithm, both USO and AWP, two common operative treatment options of UIS, reliably reduce pain and significantly reduce the DASH score over at least a period of ten years. The results after 10 years differ from short-term results in so far as after one year, the USO group showed to some degree similar outcome parameters compared to AWP, whereas at the 10-year follow-up, AWP reached slightly better primary outcome parameters. The algorithm presented, thus, produced excellent short- and long-term outcomes. Our findings and the applied algorithm can assist in decision-making and patient education.

Effect of different ulnar osteotomies on loading of the distal radioulnar joint: a finite element analysis

BACKGROUND

Ulnar impingement syndrome is a prevalent source of ulnar carpal pain; however, there is ongoing debate regarding the specific location of shortening, the method of osteotomy, the extent of shortening, and the resulting biomechanical alterations.

METHOD

To investigate the biomechanical changes in the distal radioulnar joint (DRUJ) resulting from different osteotomy methods, a cadaveric specimen was dissected, and the presence of a stable DRUJ structure was confirmed. Subsequently, three-dimensional data of the specimen were obtained using a CT scan, and finite element analysis was conducted after additional processing.

RESULTS

The DRUJ stress did not change significantly at the metaphyseal osteotomy of 2-3 mm but increased significantly when the osteotomy length reached 5 mm. When the osteotomy was performed at the diaphysis, the DRUJ stress increased with the osteotomy length, and the increase was greater than that of metaphyseal osteotomy. Stress on the DRUJ significantly increases when the position is changed to pronation dorsi-extension. Similarly, the increase in stress in diaphyseal osteotomy was greater than that in metaphyseal osteotomy. When the model was subjected to a longitudinal load of 100 N, neither osteotomy showed a significant change in DRUJ stress at the neutral position. However, the 100 N load significantly increased stress on the DRUJ when the position was changed to pronation dorsi-extension, and the diaphyseal osteotomy significantly increased stress on the DRUJ.

CONCLUSIONS

For patients with distal oblique bundle, metaphyseal osteotomy result in a lower increase in intra-articular pressure in the DRUJ compared to diaphyseal osteotomy. However, it is crucial to note that regardless of the specific type of osteotomy employed, it is advisable to avoid a shortening length exceeding 5 mm.

Arthroscopic wafer procedure versus ulnar shortening osteotomy for ulnar impaction syndrome: a systematic review and meta-analysis

PURPOSE

This study aimed to systematically compare the efficacy and safety of arthroscopic wafer procedure (AWP) versus ulnar shortening osteotomy (USO) for ulnar impaction syndrome (UIS) treatment.

METHODS

All the studies included in this meta-analysis compared the efficacy of AWP to USO for UIS and were acquired through a comprehensive search across multiple databases. The meta-analysis was performed by calculating the effect sizes with the Cochrane Collaboration's RevMan 5.4 software.

RESULTS

A total of 8 articles were included in this analysis, comprising 148 cases in the AWP group and 163 cases in the USO group. The pooled estimates indicated no significant differences in combined Darrow's Criteria or Modified Mayo Wrist Score, Modified Mayo Wrist Score, DASH scores, grip strength, VAS score, and postoperative ulnar variation. On the other hand, the patients in the AWP group exhibited fewer complications (OR = 0.17, 95%CI 0.05-0.54, P = 0.003) and a lower reoperation rate (OR = 0.12, 95%CI 0.05-0.28, P < 0.00001) than those in the USO group.

CONCLUSIONS

The two surgical techniques were both effective in treating UIS but the AWP group showed fewer complications and a lower reoperation rate. Therefore, AWP may present a superior alternative for UIS treatment.

Is ulnar shortening osteotomy or the wafer procedure better for ulnar impaction syndrome?: A systematic review and meta-analysis

BACKGROUND

Wrist pain on the ulnar side is often caused by ulnar impaction syndrome (UIS). Idiopathic UIS requires surgical treatment when conservative treatment fails. The 2 main surgical procedures used are the wafer procedure and ulnar shortening osteotomy (USO) of the metaphysis or diaphysis. This review aimed to analyze comparative studies of the 2 procedures in UIS to determine clinical outcomes and complications.

METHODS

One prospective and 5 retrospective comparison trials were retrieved from the PubMed, Embase, and Cochrane Library databases. The primary outcomes were treatment effectiveness; pain visual analog scale (VAS), disabilities of the arm, shoulder, and hand (DASH) score, Mayo wrist, and Darrow scores. The incidence of postoperative complications formed the secondary outcome.

RESULTS

The selected studies included 107 patients who underwent the wafer procedure (G1) and 117 patients who underwent USO (G2). The wafer procedure had the benefits of less postoperative immobilization and an early return to work. However, there were no significant differences in the postoperative pain improvement and functional scores. All 6 studies reported high total complication rates and reoperation with USO. The most frequent complication was implant-related discomfort or irritation; subsequent plate removal was the most common reason for a secondary operation.

CONCLUSIONS

There was no difference in pain improvement or the postoperative functional score between the groups. Nevertheless, postoperative complications were the major pitfalls of USO. As the specialized shortening system advances further, a high-level study will be necessary to determine the surgical option in UIS.