Proximal row carpectomy: Indications, surgical technique, and long-term results

Comparison of proximal row carpectomy with RCPI® versus proximal row carpectomy with Eaton's capsular interposition in the management of advanced wrist osteoarthritis

INTRODUCTION

Proximal row carpectomy (PRC) is one of the recommended techniques for managing wrist osteoarthritis, it implies the integrity of the lunate fossa of the radius and the proximal pole of the capitate. If PRC is not possible, it is suggested to consider combining it with a capsule interposition (such as Eaton's flap) or opting for intra- or radiocarpal arthrodesis. Another alternative is to combine capitate resurfacing with a pyrocarbon implant (RCPi®). The aims of this study was to assessed the results between proximal PRC+Eaton and those associated PRC+RCPi® for advanced wrist osteoarthritis.

HYPOTHESIS

We hypothesized that there would be no differences in clinical or functional outcome between proximal row carpectomy associated with RCPI® and those associated with Eaton capsular flap.

MATERIAL AND METHODS

It is a monocentric, retrospective, multi-operator study involving 83 wrists with osteoarthritis, included between January 2000 and December 2020 with a minimum follow-up period of 12 months. Thirty-nine patients underwent PRC+Eaton and 44 patients underwent RCPI® resurfacing. Data such as pain, flexion, extension and strength as well as functional scores (PRWE, Mayo and quick DASH) were collected from the patient files at the last check-up.

RESULTS

Results were comparable between the two groups in terms pain (VAS), mobility (flexion and extension), strength (GRASP) and functional scores (PRWE, Mayo and quick DASH). Carpal height was better preserved in the PRC+RCPI® group, with a Youm and McMurtry index evaluated at 0.3 in the PRC+Eaton group compared to 0.4 in the PRC+RCPI® group (p-value<0.001). Radiocarpal arthrodesis was required in 16% of the PRC+Eaton group and 6.8% of the PRC+RCPI® group, with a statistically significant difference (p-value=0.023).

DISCUSSION

This study reports clinical and functional results that suggest RCPI® is an interesting alternative and can be associated with proximal row carpectomy in advanced wrist osteoarthritis.

LEVEL OF EVIDENCE

IV; retrospective study.

Risk of Total Wrist Arthrodesis Following Proximal Row Carpectomy: An Analysis of 1,070 Patients

PURPOSE

Proximal row carpectomy (PRC) is a motion-sparing procedure with good patient-reported and clinical outcomes. Although some studies have investigated the risk of conversion to total wrist arthrodesis (TWA) after PRC, additional larger studies evaluating the specific risk factors that lead to failure are required. This study aimed to investigate the patient and procedure factors that are associated with increased risk for conversion to TWA in a large cohort of patients who underwent PRC.

METHODS

The current procedural technology codes identified patients in a National Veteran's Health database undergoing a PRC over a 26-year period. Risk factors of interest comprised age, posterior interosseous nerve neurectomy, wrist arthritis pattern, bilateral surgery, smoking, comorbidities, and preoperative opioid use. The primary outcome was the rate of conversion to TWA. Cox proportional hazard regression was used to create hazard ratios of selected factors for reoperation.

RESULTS

There were 1,070 PRCs performed, with a mean follow-up of 79.8 ± 59.6 months. A total of 5.3% (57/1,070) wrists underwent conversion to TWA. Younger age at the time of PRC (<50 years) significantly increased the risk of TWA (hazard ratio, 3.8; 95% confidence interval, 2.2-6.6). With every 1-year increase in age, there was a reduction of 4% (hazard ratio, 0.96; 95% confidence interval: 0.94-0.98) in the hazard of conversion to TWA. No other factors, including concomitant posterior interosseous nerve neurectomy or bilateral PRC, increased the risk of conversion to TWA.

CONCLUSIONS

Proximal row carpectomy is a motion-preserving salvage procedure with a low rate of conversion to wrist arthrodesis. Younger patient age increases the risk of conversion to arthrodesis, whereas posterior interosseous nerve neurectomy, bilateral PRCs, and comorbidity status do not appear to have an impact on the risk of arthrodesis.

TYPE OF STUDY/LEVEL OF EVIDENCE

Prognostic II.

A Systematic Review of Radiolunate and Radioscapholunate Arthrodesis

Purpose

The aims of this systematic review were to examine the use of radiolunate (RL) or radioscapholunate (RSL) arthrodesis as surgical management for patients with advanced radiocarpal arthritis that failed conservative management and to assess postoperative outcomes.

Methods

We reviewed articles from PubMed, EMBASE, and Web of Science from inception through December 2019. We identified complete manuscripts written in English reporting on RL or RSL arthrodesis for treatment of wrist pathology that included the primary outcomes (pain or grip strength) and at least 2 secondary outcomes (range of motion, patient-reported outcomes, or nonunion). Data pooling was used to calculate weighted averages.

Results

We identified 2,252 articles and selected 13 for inclusion. Across all studies, RSL arthrodesis was performed for 180 patients (49% female; 45 years old) and RL for 94 (87% female; 50 years old). Both procedures exhibited improvements in pain score and grip strength. Both cohorts demonstrated postoperative changes in flexion-extension arc, flexion, extension, ulnar deviation, supination, and pronation after data pooling. The nonunion rate for RSL was 15% versus 2% for RL, whereas the rate of progression to total wrist arthrodesis for RSL and RL was 4% and 0%, respectively.

Conclusions

Both RL and RSL arthrodesis can be successfully used to manage debilitating radiocarpal arthritis by affording patients with pain reduction. Each has its own benefits, in which RSL arthrodesis provides a total arc of motion within the functional demands of most activities of daily living, and RL arthrodesis has low rates of nonunion and progression to total wrist arthrodesis. Further research is needed to compare the 2 surgeries directly and prospectively in comparable patient groups.

Type of study/level of evidence

Therapeutic III.

Proximal row carpectomy combined with primary flexor pollicis longus tenorrhaphy: An effective treatment alternative for a rare case of flexor pollicis longus rupture due to scaphoid nonunion advanced collapse

This study describes a case of flexor pollicis longus rupture resulting from long-term scaphoid nonunion advanced collapse. The tendon rupture mechanism was attrition due to sharp bone protuberances from the scaphoid in the carpal tunnel. Although this extremely rare complication has already been reported in the literature, our study is original in showing that proximal row carpectomy with consequent wrist shortening allowed primary tendon repair without transferring the flexor digitorum superficialis tendon of the ring finger or grafting the palmaris longus tendon, which besides using two-level suturing, interposes a non-vascularized tissue.

Proximal row carpectomy in patients older than 50 years: 3 to 16 years of follow-up

OBJECTIVE

To analyze the long-term results and the prognosis of patients who have undergone proximal row carpectomy (PRC) in our hospital.

MATERIAL AND METHOD

This is a retrospective study of 14 patients undergoing PRC with a follow-up of 3 to 16 years. The ability to perform daily activities, mobility and functional capacity after the surgery were assessed using the Patient-Rated Wrist Evaluation questionnaire (PRWE).

RESULTS

The range of movement was satisfactory. The mean score on the PRWE scale was 20.9±17.2 for the pain subscale and 39±35.5 for the functional capacity subscale. None of the patients required revision surgery or developed complications. Eighty percent of the patients were satisfied or very satisfied. Ninety percent of the patients would undergo surgery again.

DISCUSSION

The wrist's range of movement achieved with this technique is similar to that obtained with other mobility preservation techniques. Secondary arthritic changes in the radio-capitate joint do not necessarily produce pain. Some authors have described that the degree of satisfaction after PRC is equivalent to that of other procedures such as arthrodesis in 4 corners with circular plate arthrodesis or middle-carpal arthrodesis.

CONCLUSION

PRC achieved high satisfaction rates among the patients providing pain relief, good mobility and post-operative functionality of the wrist. In addition, it presented few complications.

A comparison of dart thrower's range of motion following radioscapholunate fusion, four-corner fusion and proximal row carpectomy

Dart thrower's motion is the functional coupled movement of the wrist from radial extension to ulnar flexion. The aim of this study was to evaluate dart thrower's motion following three surgeries: radioscapholunate fusion, four-corner fusion and proximal row carpectomy. Six fresh-frozen cadaver forearms were dissected. Sequential loading of tendons resulted in radial extension and ulnar flexion allowing dart thrower's motion measurements at end range before and then again after each surgery. After radioscapholunate fusion, 74% of both radial extension and ulnar flexion were maintained. After four-corner fusion, radial extension decreased to 53% and ulnar flexion to 84% of control motion. Proximal row carpectomy did not statistically significantly alter radial extension, but decreased ulnar flexion to 87%. We found that dart thrower's motion is well maintained in three of these commonly used surgical treatments. These results may aid surgeons in managing patients by providing comparative functional movement following these procedures.