Nonspanning Total Wrist Arthrodesis with a Low-Profile Locking Plate

Wrist Arthrodesis Using the Medartis Carpometacarpal Joint Sparing Plate

BACKGROUND

Total wrist arthrodesis is a well-established surgical technique that provides reliable pain relief in patients with advanced wrist disease. Key limitations of existing plating systems include hardware pull-out, hardware failure, and nonunion. There is limited literature on the newer style carpometacarpal joint (CMCJ) sparing plating system, produced by Medartis. The objective of this study was to determine the long-term clinical and radiological outcomes of wrist arthrodesis with a CMCJ sparing wrist plate.

METHODS

This study retrospectively identified 23 wrist arthrodeses using the Medartis CMCJ sparing plate for review. This study assessed the outcomes of 18 unilateral wrist fusions and 1 bilateral wrist fusion. The study group consisted of 12 men and 5 women with an average age of 56 years (range: 29-82 years) with a mean follow-up period of 17 months.

RESULTS

At the time of follow-up, all patients' wrists had fused without postsurgical complication. The final grip strength in the operative hand was 28.2 kg/cm2, which was 87% of the contralateral side. The mean Quick Disabilities of the Arm, Shoulder, and Hand score at follow-up was 23.9, with all patients returning to daily living activities and work. Patients reported minimal pain (1.3/10), with almost all (17/18) satisfied with the outcome of the surgery and describing that they would recommend this procedure.

CONCLUSION

Our case series highlights that the Medartis wrist arthrodesis plate is a newer design that is a well-tolerated option for wrist arthrodesis based on clinical assessment, functional hand assessment, and patient satisfaction, when compared with the existing literature on traditional plating systems.

Treatment of Scaphoid Non-Unions with Custom-Made 3D-Printed Titanium Partial and Total Scaphoid Prostheses and Scaphoid Interosseous Ligament Reconstruction

PURPOSE

Treatment of scaphoid fracture sequelae is still an unsolved problem in hand surgery. Custom-made 3D-printed titanium partial and total scaphoid prosthesis and scaphoid interosseous ligament reconstruction (SLIL) are performed in cases of non-union and isolated aseptic necrosis of the proximal scaphoid pole and when it is impossible to save the scaphoid bone, respectively. This study aims to evaluate the clinical, functional and radiographic results after these two prosthesis implantations.

METHODS

Between January 2019 and July 2020, nine partial and ten total scaphoid prostheses were implanted using custom-made 3D-printed titanium implants. Evaluation criteria included carpal height ratio (CHR), radioscaphoid angle, wrist extension and flexion, radial deviation and ulnar deviation of the wrist, grip strength and pinch strength, Visual Analogue Scale (VAS), the Disabilities of Arm, Shoulder, and Hand (DASH) score, and the Patient-Rated Wrist Evaluation (PRWE).

RESULTS

Clinical, functional, and radiographic improvements were found in all outcomes analyzed for both patient groups. The VAS pain scale obtained the most remarkable improvement at the one-year follow-up. The results of the DASH scores and the PRWE were good, with a great rate of patient satisfaction at the end of the follow-up. SLIL reconstruction also provided excellent stability and prevented a mid-carpal bone collapse in the short- and medium-term follow-up.

CONCLUSIONS

A custom-made 3D-printed titanium partial or total scaphoid prosthesis is a viable solution for patients with scaphoid non-union and necrosis or complete scaphoid destruction in whom previous conservative or surgical treatment has failed.

Biomechanical Performance of Total Wrist Arthrodesis Plates With and Without Arthrodesis of the Carpometacarpal Joint

BACKGROUND

It is unknown whether total wrist arthrodesis (TWA) should be performed with or without arthrodesis of the carpometacarpal joint (CMCJ). The aim of this study is to compare CMCJ-spanning TWA plates using 3D printed wrist arthrodesis model with and without arthrodesis of the CMCJ.

METHODS

Total wrist arthrodesis plates mounted to 3D printed models were tested under a 4-N bending load at 4 Hz for 50 000 cycles, increased by 15% every 10 000 cycles until failure.

RESULTS

Plates with arthrodesis CMCJ were stiffer and failed at a significantly greater load and number of cycles than plates mounted to models without CMCJ arthrodesis. The Synthes stainless steel locking TWA plate performed better than the Trimed plate applied to the model without CMCJ arthrodesis and the Acumed plate applied to the model with CMCJ arthrodesis. Based on these findings, we recommend arthrodesis of the CMCJ in TWA.

CONCLUSIONS

Incorporation of the CMCJ in TWA may protect against plate failure. If arthrodesis of the CMCJ is not performed, plate removal should be considered before breakage occurs.

LEVEL OF EVIDENCE

IV.

The Effect of 3rd Carpometacarpal Arthrodesis in the Outcomes of Total Wrist Fusion Using Modern Plate Technology

Background  The inclusion of the third carpometacarpal (CMC) joint in the fusion mass in total wrist fusion (TWF) remains controversial. Our goal was to evaluate the clinical outcomes and effects of third CMC joint arthrodesis compared with bridging the CMC joint during TWF. A retrospective chart review was performed. Outcomes assessed included hardware loosening, hardware failure, symptomatic hardware necessitating removal, and need for revision arthrodesis. Case Description/Literature Review  We found that concomitant third CMC joint arthrodesis was associated with a significantly reduced rate of radiocarpal and midcarpal joint nonunion, hardware loosening, and symptomatic hardware removal when compared to bridging of the CMC joint. There was no significant difference in hardware failure rates or the need for revision arthrodesis. Clinical Relevance  When using a contoured dorsal spanning plate, concomitant CMC joint arthrodesis should be considered during TWF to mitigate against hardware loosening and symptomatic hardware. Level of Evidence  Level IV.

Results of the total wrist arthrodesis with contoured plate in a series of 41 wrists with median follow-up of 6 years

We present a comparative analysis between the pre and postoperative status of 41 wrists subjected to total arthrodesis with contoured plate, analysing the functional and radiological results, subjective satisfaction and return to work. The indications for surgery were post-traumatic arthritis (56.1%), Kien- böck's disease (17.1%), rheumatic disease (14.6%) or other reasons (12.2%). In 75.6% of the procedures, proximal row carpectomy took place prior to or at the same time as the surgical fusion procedure. The median follow-up was 6 years. Postoperatively, pain decreased by 7.5 points on the Visual Analogue Scale and grip strength increased by 6.3 kg. The improvement in the Quick Disabilities of the Arm, Shoulder and Hand was 43.5 points and 53.2 in the Patient- Rated Wrist Evaluation. All changes were statistically significant. There were postoperative complications in 14.6% of the arthrodesis procedures. Radiocarpal fusion was complete in 97.6% of cases. Finally, 62.5% of patients were able to return to work, with 92.5% being satisfied or very satisfied. These results allow us to conclude that, in the medium term, total wrist arthrodesis with contoured plate is a reliable and safe technique for the treatment of advanced radiocarpal arthritis.

Locked Intramedullary Total Wrist Arthrodesis: A Report of Three Patients With Distal Screw Migration

Intramedullary (IM) fixation for the total wrist arthrodesis (TWA) is supposed to lower the hardware complication rate by eliminating soft tissue irritation. In this report, we present three patients with distal metacarpal screw migration requiring unplanned secondary surgery for screw removal in one patient while it was managed nonoperatively in the other two. All three patients had complete radiocarpal fusion by four months postop. There was no attempted third carpometacarpal (CMC) fusion in any of our patients. Screw migration was found between 1.5-3.5 months postop and remained stable until the final follow-up in the nonoperatively managed patients. One patient with screw removal continued to have mild tenderness over the third CMC, which was managed nonoperatively.

Total wrist arthrodesis with and without arthrodesis of the carpoMetacarpal joint (WAWWAM): study protocol

Background

It is controversial whether or not the carpometacarpal joint (CMCJ) should be included in total wrist arthrodesis (TWA). Complications commonly occur at this site and studies examining its inclusion and exclusion are conflicting. A randomised clinical trial comparing wrist arthrodesis with CMCJ arthrodesis and spanning plate to wrist arthrodesis with CMCJ preservation and non-CMCJ spanning plate has not been performed.

Method

A single centre randomised clinical trial including 120 adults with end-stage isolated wrist arthritis will be performed to compare TWA with and without the CMCJ included in the arthrodesis. The primary outcome is complications in the first post-operative year. Secondary outcomes are Disabilities of the Arm, Shoulder and Hand (DASH) score, Patient Rated Wrist Evaluation (PRWE) and grip strength measured at 1, 2 and 5 years. Late complications, return to work and satisfaction will also be recorded.

Discussion

It is unknown whether the CMCJ should be included in TWA. This trial will contribute to an improved understanding of optimal management of the CMCJ in total wrist arthrodesis.

Trial registration

This trial was prospectively registered with the Australia New Zealand Clinical Trials Registry with identifying number ACTRN12621000169842 on the 16th February 2021.

WHO: U1111–12626523.

ANZCTR:

ACTRN12621000169842

Supplementary Information

The online version contains supplementary material available at 10.1186/s12891-021-04644-4.

Wrist fusion in peripheral paralysis

In cases of paralysis of the upper limb, wrist fusion is useful in selected indications, especially when there are little to no tendon transfers available to restore finger function and wrist extension. Wrist fusion is particularly useful in the sequelae of brachial plexus lesions and in total paralysis of the radial nerve with hand drop and preserved wrist flexors. Numerous fusion techniques have been proposed. In cases of sequelae of brachial plexus lesions, locking of pronation-supination is associated with the wrist fusion. The use of anatomical plates has dropped the non-union and complication rates.

Vascularized Ulnar Transposition and Radioulnoscapholunate Fusion With Volar Locking Plate in a Dorsal Position Following Resection of Giant Cell Tumor of the Distal Radius

Giant cell tumor of the distal radius is a rare, locally destructive, and frequently recurrent tumor. We present a case of Campanacci Grade III giant cell tumor of the distal radius with pathologic fracture and cortical destruction which was treated with neoadjuvant denosumab. This facilitated en-bloc resection of the entire distal radius, including the articular surface, while minimizing tumor contamination. Reconstruction was accomplished using a vascularized ulnar transposition flap to facilitate radioulnoscapholunate fusion, which was fixated using a long-stem contralateral variable angle locking volar distal radius plate in a dorsal position. This case illustrates multidisciplinary management of a challenging reconstructive problem and demonstrates a novel strategy for fixation which repurposes familiar and readily available hardware to provide optimal osteosynthesis.