Comparison between proximal row carpectomy and four-corner fusion for treating osteoarthrosis following carpal trauma: a prospective randomized study

Explainable AI Elucidates Musculoskeletal Biomechanics: A Case Study Using Wrist Surgeries

As datasets increase in size and complexity, biomechanists have turned to artificial intelligence (AI) to aid their analyses. This paper explores how explainable AI (XAI) can enhance the interpretability of biomechanics data derived from musculoskeletal simulations. We use machine learning to classify the simulated lateral pinch data as belonging to models with healthy or one of two types of surgically altered wrists. This simulation-based classification task is analogous to using biomechanical movement and force data to clinically diagnose a pathological state. The XAI describes which musculoskeletal features best explain the classifications and, in turn, the pathological states, at both the local (individual decision) level and global (entire algorithm) level. We demonstrate that these descriptions agree with assessments in the literature and additionally identify the blind spots that can be missed with traditional statistical techniques.

A review of scaphoid fracture, treatment outcomes, and consequences

PURPOSE

Scaphoid fractures are the most common carpal fracture and can lead to severe complications like carpal collapse and osteoarthritis. This study reviewed scaphoid fracture patterns, outcomes, and consequences in conservative and surgical management.

METHODS

Sixty-four patients with scaphoid fracture who attended the hand clinic at King Hussein Medical City from January 2022 to December 2022 were included and reviewed regarding the anatomical fracture site, the associated injury, the treatment modality (conservative versus surgical), the healing time, and fracture sequelae such as nonunion and scaphoid nonunion advanced collapse.

RESULTS

Most patients were males (62 patients, 96.9%), and most (47, 73.4%) fell within 25 to 40 years. Scaphoid waist fracture was the most common location (40, 52.5%). Most patients (47, 73.4%) received conservative treatment and 17 (26.6%) were fixed acutely. However, nonunion complicated 53 fractures (82.8%). Notably, there were no differences in the union rate or time between cases of scaphoid nonunion treated with vascularized or nonvascularized grafts. Furthermore, there were no variations in union rates among genders, extremities, age, fracture locations, or among smokers. However, a higher union rate was noted in office workers and those who received conservative treatment.

CONCLUSION

Nonunions were higher in our study than in the literature, as our department is a referral center for established nonunion cases. For conservative treatment, we recommend aggressive management and follow-up with a clinical and CT scan at three months and early referral of non-united fractures to the hand clinic to avoid the advanced collapse of the scaphoid.

Proximal ROw carpectOmy versus four-corner Fusion (PROOF-trial) for osteoarthritis of the wrist: study protocol for multi-institutional double-blinded randomized controlled trial

BACKGROUND

Scapholunate advanced collapse (SLAC) and scaphoid non-union advanced collapse (SNAC) are common types of wrist osteoarthritis (OA). Non-operative treatment consists of pain medication, splinting, and avoiding activities that induce pain. However, in case a course of conservative treatment is unsuccessful, operative treatment is needed. The two most conventional operative approaches for SLAC/SNAC OA are four-corner arthrodesis (FCA) and proximal row carpectomy (PRC). Although FCA is the gold-standard operative technique and may lead to superior grip strength, the evident benefit of PRC is that it obviates any need for hardware removal and controlling for bony union. To date, no high-quality randomized controlled trial comparing FCA and PRC exists. As clinical outcomes seem comparable, a trial that assesses patient-reported outcomes, adverse events, and secondary operations may guide clinical decision making between these two procedures. Thus, the aim of this multi-institutional double-blind randomized controlled trial is to study whether PRC is non-inferior to FCA in treating SLAC/SNAC OA. We hypothesize that PRC is non-inferior to FCA with lower economic expanses.

METHODS

The trial is designed as a randomized, controlled, patient- and outcome-assessor blinded multicenter, two-armed 1:1 non-inferiority trial. Patients with SLAC/SNAC-induced wrist pain meeting trial inclusion criteria will undergo wrist arthroscopy to further assess eligibility. Each patient eligible for the trial will be randomly assigned to undergo either FCA or PRC. The primary endpoint of this study is the Patient Rated Wrist Evaluation (PRWE) at 1-year after FCA versus PRC. Secondary outcomes include Quick-Disabilities of the Arm, Shoulder and Hand, EQ-5D-5L, pain, grip strength, wrist active range of motion, radiographic evaluation, and adverse events. Trial design, methods, and statistical analysis plan will be presented here.

DISCUSSION

We present an RCT design comparing FCA vs PRC for SLAC/SNAC-induced OA. The results of this trial will assist in decision making when planning surgery for SLAC/SNAC.

TRIAL REGISTRATION

ClinicalTrials.gov NCT04260165 . Registered February 7, 2020.

Relationship Between Preoperative and Postoperative Motion After Four-Corner Wrist Fusion for Osteoarthritis: Clustering and Regression Analyses

PURPOSE

Four-corner fusion (4CF) is a surgical option for refractory scapholunate advanced collapse and scaphoid nonunion advanced collapse wrist arthritis. Preoperative range of motion (ROM) predicts outcomes in many orthopedic procedures. This study investigates ROM in a cohort of 4CF patients to examine the relationship between preoperative and postoperative motion and identifies different clinical patterns.

METHODS

We performed a retrospective review of 4CF patients. Patients with a history of inflammatory arthritis and radiographic characteristics of inflammation were excluded. Demographics, prior wrist surgery history, and ROM data were collected at preoperative and postoperative intervals after cast removal at 8 weeks, 3 months, and 8 months. Regression analysis compared the motion before and after 4CF. Subsequent cluster analysis to reduce confounding compared postoperative motion differences in the top 20% to the bottom 20% of patients by preoperative motion.

RESULTS

We included 148 patients; 27 had prior surgery on the ipsilateral wrist. Preoperative arc averaged 86° ± 28° (flexion 46° ± 17°, extension 40° ± 15°); 8-week arc 43° ± 19° (flexion 19° ± 12°, extension 24° ± 12°); 3-month arc 62° ± 17° (flexion 30° ± 12°, extension 32° ± 11°); and 8-month arc 74° ± 17° (flexion 36° ± 11°, extension 37° ± 12°). Preoperative and final arcs were (r = 0.39). Clustering by the preoperative arc, the top 20% (mean 124° ± 15°) achieved a mean final arc of 81° ± 16°, while the bottom 20% (mean 47° ± 16°) achieved a mean final arc of 65° ± 19°. Intercluster differences were statistically significant. The bottom 20% gained motion postoperatively. Most patients in the middle 60% did not differ significantly in postoperative motion.

CONCLUSIONS

Although wrist motion following 4CF correlates positively with preoperative motion, most patients do not differ significantly in postoperative motion. Patients with substantial preoperative motion deficits gain motion after 4CF. This information is important when counseling patients, determining the timing of surgical intervention, and managing expectations related to motion outcomes.

TYPE OF STUDY/LEVEL OF EVIDENCE

Prognostic II.

Opioid Prescribing for Proximal Row Carpectomy versus Four-Corner Arthrodesis

Background  Proximal row carpectomy (PRC) and four-corner arthrodesis (4-CA) represent motion-sparing procedures for addressing degenerative wrist pathologies. While both procedures demonstrate comparable functional outcomes, postoperative pain presents a surgical challenge that often necessitates the use of opioids. Objectives The aim of this study was to (1) compare opioid prescribing patterns surrounding PRC and 4-CA, (2) identify risk factors predisposing patients to increased perioperative and prolonged postoperative opioids, and (3) examine the association between opioids and perioperative health care utilization. Patients and Methods  PearlDiver Patients Records Database was used to retrospectively identify patients undergoing primary PRC and 4-CA between 2010 and 2018. Patient demographics, comorbidities, prescription drug usage, and perioperative health care utilization were evaluated. Perioperative opioid prescriptions and post-operative opioid prescriptions were recorded. Logistic regression analysis evaluated the association of patient risk factors. Results  There was no significant difference in perioperative (PRC [odds ratio {OR}: 0.84, p  = 0.788]; 4-CA [OR: 0.75, p  = 0.658]) or prolonged postoperative opioid prescriptions (PRC [OR: 0.95, p  = 0.927]; 4-CA [OR: 0.99, p  = 0.990]) between PRC and 4-CA. Chronic back pain and use of benzodiazepines or anticonvulsants were associated with increased risks of prolonged postoperative opioids. Prolonged postoperative opioids presented increased risks of emergency department visits (OR: 2.09, p  = 0.019) and hospital readmissions (OR: 10.2, p  = 0.003). Conclusion  No significant differences exist in the prescription of opioids for PRC versus 4-CA. Both procedures have high amounts of prolonged postoperative opioid use, which is associated with increased risks of emergency department visits and hospital readmissions. Level of Evidence  This is a level III, retrospective comparative study.

The never-ending battle between proximal row carpectomy and four corner arthrodesis: A systematic review and meta-analysis for the final verdict

While scaphoid excision combined with Four Corner Arthrodesis (FCA) or Proximal Row Carpectomy (PRC) is a commonly-used salvage procedures to treat type two and type three Scapholunate Advanced Collapse (SLAC) and Scaphoid Nonunion Advanced Collapse (SNAC)-induced degenerative arthritis, controversy remains over which treatment intervention provides superior outcomes. We searched for articles comparing a range of motion, grip strength, complications requiring reoperation, conversion to wrist arthrodesis, pain, and disability of shoulder and arm scores between FCA and PRC-treated patients. The risk of bias was assessed using the National Institutes of Health (NIH) quality assessment tool. We performed a meta-analysis using Random-Effects Models. Fifteen articles (10 retrospective, 2 cross-sectional, 1 prospective, and 2 randomized trials) were included. There was no significant difference between PRC and FCA in any of the different outcome measures. The risk of bias was found consistently high across all studies. Despite the lack of high-quality evidence, based on existing literature, we recommend PRC as the preferred choice of treatment because of the simplicity of the surgical procedure, lack of hardware-related complications, and comparable long-term outcomes. Level of evidence: III - Therapeutic.

Cost-Effectiveness Analysis of Motion-Preserving Operations for Wrist Arthritis

BACKGROUND

The authors conducted a cost-effectiveness analysis to answer the question: Which motion-preserving surgical strategy, (1) four-corner fusion, (2) proximal row carpectomy, or (3) total wrist arthroplasty, used for the treatment of wrist osteoarthritis, is the most cost-effective?

METHODS

A simulation model was created to model a hypothetical cohort of wrist osteoarthritis patients (mean age, 45 years) presenting with painful wrist and having failed conservative management. Three initial surgical treatment strategies-(1) four-corner fusion, (2) proximal row carpectomy, or (3) total wrist arthroplasty-were compared from a hospital perspective. Outcomes included clinical outcomes and cost-effectiveness outcomes (quality-adjusted life-years and cost) over a lifetime.

RESULTS

The highest complication rates were seen in the four-corner fusion cohort: 27.1 percent compared to 20.9 percent for total wrist arthroplasty and 17.4 percent for proximal row carpectomy. Secondary surgery was common for all procedures: 87 percent for four-corner fusion, 57 percent for proximal row carpectomy, and 46 percent for total wrist arthroplasty. Proximal row carpectomy generated the highest quality-adjusted life-years (30.5) over the lifetime time horizon, compared to 30.3 quality-adjusted life-years for total wrist arthroplasty and 30.2 quality-adjusted life-years for four-corner fusion. Proximal row carpectomy was the least costly; the mean expected lifetime cost for patients starting with proximal row carpectomy was $6003, compared to $11,033 for total wrist arthroplasty and $13,632 for four-corner fusion.

CONCLUSIONS

The authors' analysis suggests that proximal row carpectomy was the most cost-effective strategy, regardless of patient and parameter level uncertainties. These are important findings for policy makers and clinicians working within a universal health care system.

Four-Corner Arthrodesis versus Proximal Row Carpectomy: Risk Factors and Complications Associated with Prolonged Postoperative Opioid Use

Introduction This article compares opioid use patterns following four-corner arthrodesis (FCA) and proximal row carpectomy (PRC) and identifies risk factors and complications associated with prolonged opioid consumption.

Materials and Methods The PearlDiver Research Program was used to identify patients undergoing primary FCA (Current Procedural Terminology [CPT] codes 25820, 25825) or PRC (CPT 25215) from 2007 to 2017. Patient demographics, comorbidities, perioperative opioid use, and postoperative complications were assessed. Opioids were identified through generic drug codes while complications were defined by International Classification of Diseases, Ninth and Tenth Revisions, Clinical Modification codes. Multivariable logistic regressions were performed with p < 0.05 considered statistically significant.

Results A total of 888 patients underwent FCA and 835 underwent PRC. Three months postoperatively, more FCA patients (18.0%) continued to use opioids than PRC patients (14.7%) (p = 0.033). Preoperative opioid use was the strongest risk factor for prolonged opioid use for both FCA (odds ratio [OR]: 4.91; p < 0.001) and PRC (OR: 6.33; p < 0.001). Prolonged opioid use was associated with an increased risk of implant complications (OR: 4.96; p < 0.001) and conversion to total wrist arthrodesis (OR: 3.55; p < 0.001) following FCA.

Conclusion Prolonged postoperative opioid use is more frequent in patients undergoing FCA than PRC. Understanding the prevalence, risk factors, and complications associated with prolonged postoperative opioid use after these procedures may help physicians counsel patients and implement opioid minimization strategies preoperatively.

Risk of Total Wrist Arthrodesis or Reoperation Following 4-Corner Arthrodesis or Proximal Row Carpectomy for Stage-II SLAC/SNAC Arthritis: A Propensity Score Analysis of 502 Wrists

BACKGROUND

For stage-II scapholunate advanced collapse (SLAC) and scaphoid nonunion advanced collapse (SNAC) patterns of wrist arthritis, the optimal method of surgical treatment remains unclear. Previous literature has demonstrated similar clinical outcomes between proximal row carpectomy (PRC) and 4-corner arthrodesis (FCA), making the risk of reoperation a focus of particular interest. In the present study, the primary null hypothesis was that there would be no difference in the rate of conversion to total wrist arthrodesis between PRC and FCA. Additionally, we hypothesized that the rate of secondary surgical procedures would be similar between the 2 procedures.

METHODS

The national Veterans Health Administration Corporate Data Warehouse was utilized to identify 2,449 patients who underwent either PRC or FCA between 1992 and 2016. With use of operative reports to identify the arthritis pattern, only cases of stage-II SLAC/SNAC were included. All complications and subsequent surgical procedures were confirmed by manual chart review. Propensity score analyses with matching weights were utilized to balance the PRC and FCA cohorts. The rates of conversion to wrist arthrodesis and secondary surgical procedures were calculated.

RESULTS

Of the 1,168 patients with stage-II SLAC/SNAC arthritis, 933 wrists underwent PRC and 257 wrists underwent FCA. Ten-year survival free of total wrist arthrodesis in the matching PRC (251 procedures) and FCA (251 procedures) cohorts was 94.3% (95% confidence interval [CI], 92.3% to 96.3%) and 94.1% (95% CI, 90.8% to 97.4%), respectively. Survival free of a secondary surgical procedure other than wrist arthrodesis was 99.7% (95% CI, 99.3% to 100.0%) for PRC and 83.5% (95% CI, 78.2% to 88.8%) for FCA.

CONCLUSIONS

PRC and FCA demonstrated similarly low rates of conversion to total wrist arthrodesis. In contrast, the rate of secondary surgical procedures following FCA was significantly higher compared with PRC. Given the historically similar clinical outcomes between PRC and FCA, the results of the present study show that PRC may be a preferable treatment for stage-II SLAC/SNAC wrist arthritis.

LEVEL OF EVIDENCE

Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.

Proximal Row Carpectomy versus Four-Corner Arthrodesis for the Treatment of Scapholunate Advanced Collapse/Scaphoid Nonunion Advanced Collapse Wrist: A Cost-Utility Analysis

BACKGROUND

Two mainstay surgical options for salvage in scapholunate advanced collapse and scaphoid nonunion advanced collapse are proximal row carpectomy and four-corner arthrodesis. This study evaluates the cost-utility of proximal row carpectomy versus three methods of four-corner arthrodesis for the treatment of scapholunate advanced collapse/scaphoid nonunion advanced collapse wrist.

METHODS

A cost-utility analysis was performed in accordance with the Second Panel on Cost-Effectiveness in Health and Medicine. A comprehensive literature review was performed to obtain the probability of potential complications. Costs were derived using both societal and health care sector perspectives. A visual analogue scale survey of expert hand surgeons estimated utilities. Overall cost, probabilities, and quality-adjusted life-years were used to complete a decision tree analysis. Both deterministic and probabilistic sensitivity analyses were performed.

RESULTS

Forty studies yielding 1730 scapholunate advanced collapse/scaphoid nonunion advanced collapse wrists were identified. Decision tree analysis determined that both four-corner arthrodesis with screw fixation and proximal row carpectomy were cost-effective options, but four-corner arthrodesis with screw was the optimal treatment strategy. Four-corner arthrodesis with Kirschner-wire fixation and four-corner arthrodesis with plate fixation were dominated (inferior) strategies and therefore not cost-effective. One-way sensitivity analysis demonstrated that when the quality-adjusted life-years for a successful four-corner arthrodesis with screw fixation are lower than 26.36, proximal row carpectomy becomes the optimal strategy. However, multivariate probabilistic sensitivity analysis confirmed the results of our model.

CONCLUSIONS

Four-corner arthrodesis with screw fixation and proximal row carpectomy are both cost-effective treatment options for scapholunate advanced collapse/scaphoid nonunion advanced collapse wrist because of their lower complication profile and high efficacy, with four-corner arthrodesis with screw as the most cost-effective treatment. Four-corner arthrodesis with plate and Kirschner-wire fixation should be avoided from a cost-effectiveness standpoint.

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.

Computational wrist analysis of functional restoration after scapholunate dissociation repair

The scapholunate ligament stabilizes the scaphoid and lunate of the proximal row in the wrist which allows for proper force transmission with the radius and ulna. Damage to this structure degenerates into arthritis and disability. Controversy exists over the best technique to restore function and reduce pain. A three-dimensional computational model of the wrist and hand was used to investigate the biomechanical effects of scapholunate ligament dissociation and its repair. The model replicated 3D bony anatomy, soft tissue structures, and muscle loading. The model predicted the increased instability caused by the injury, consistent with experimental and clinical evidence, and a return of more healthy kinematics with the repair. Changes to load transmission across the radiocarpal joints were noted with the injury, only some of which were mitigated by the repair. As better understanding of the biomechanics of the wrist joint is achieved, this model could prove to be an important tool to further investigate wrist mechanics and inform the effects of treatment options. Graphical abstract 3D computational model of all bones in the wrist/hand permitted simulation of five major motions-wrist flexion/extension, radial/ulnar deviation, and clenched fist. Shown are the array of tensile elements representing ligaments and capsule, as well as muscle force vectors for the desired motions. SL (scapholunate) separation (interval) predicted by the model for one motion compared well to an experimental study showing the instability induced by an injured (cut) SL ligament and returned stability by a clinical repair procedure, MBT (Modified Brunelli technique).

HOW SCAPHOID FRACTURES ARE TREATED IN BRAZIL

OBJECTIVE

To verify how hand surgeons manage scaphoid fractures and their complications.

METHODS

Two hundred questionnaires were distributed during the 36^th Brazilian Hand Surgery Congress (2016).

RESULTS

On suspicion of fracture without radiographic confirmation, 57% of surgeons request a CT or MRI scan, while 43% opt for immobilization and consecutive radiographs. In stable fractures the preference was for treatment with plaster cast. In fractures with no scaphoid waist displacement, 33% opt for percutaneous fixation. In displaced waist or proximal pole fractures, 66% and 99.4%, respectively, opted for surgical treatment. Most surgeons treat waist nonunion with a nonvascularized bone graft. When absorption at the site of nonunion is greater than 4 mm, 50% prefer to use iliac graft and screw fixation. In proximal pole nonunion, the Zaidemberg technique is preferred by 64%. More experienced surgeons are more likely to request tests in occult fractures (63.9% versus 47.6%; p=0.04), and tend to recommend surgery for distal third fractures more frequently (16.4% versus 4.7%; p=0.02).

CONCLUSIONS

We have provided an overview of treatment preferences for scaphoid fractures. It should be noted that more experienced surgeons are more likely to request additional tests for occult fractures and to recommend surgical treatment of distal third fractures. Level of Evidence IV, Cross-sectional survey.

Arthroscopic Wrist Debridement and Radial Styloidectomy for Advanced Scapholunate Advanced Collapse Wrist: Long-term Follow-up

BACKGROUND

Symptomatic stage 2 or 3 scapholunate advanced collapse (SLAC) wrist is aggressively treated with salvage procedures, such as proximal row carpectomy or partial wrist fusion with resultant pain relief but limited motion. We hypothesize that arthroscopic synovectomy, radial styloidectomy, and neurectomy will preserve wrist motion, relieve pain, and delay or avoid salvage procedures.

METHODS

We evaluated outcomes in 13 wrists through questionnaires and 11 of these through additional physical examination at a mean follow-up of 5.0 years. Eight wrists were stage 2 and 5 were stage 3. Data at final follow-up included mobility/strength measurements, subjective outcome scores (Disabilities of the Arm, Shoulder, and Hand [DASH] and visual analog scale [VAS] pain), patient satisfaction, and return to work statistics.

RESULTS

Patients had an average flexion-extension arc of 88.0° in the treated wrist and an average grip strength that was 95.0% of the contralateral side. No patients required revision surgery at follow-up. The 13 wrists reported an average DASH score of 16.4 and mean VAS pain score at rest and with activity of 17.9 and 31.6, respectively. All patients working prior to the procedure (n = 8) were able to immediately return to work. In all, 84.6% of patients were satisfied.

CONCLUSIONS

The procedure studied may have advantages in relieving pain, while preserving wrist motion for SLAC stage 2 or 3 disease. This procedure does not preclude future salvage procedures in those patients with severe disease who prefer to maintain wrist motion for the short term. Patients experience good functional outcomes with the majority experiencing a reduction in pain with the ability to return to work.

A blinded, randomized trial comparing bicolumnar arthrodesis to radioscapholunate arthrodesis in scapholunate advanced collapse II arthritis: a pilot study

The purpose of this study was to compare the outcome of scaphoid excision with capitolunate and triquetrohamate arthrodesis (bicolumnar arthrodesis) to radioscapholunate arthrodesis in patients with scapholunate advanced collapse (SLAC) II wrist arthritis. Twelve patients with symptomatic SLAC II arthritis were recruited and randomized to receive either bicolumnar arthrodesis or radioscapholunate arthrodesis. The primary outcome was wrist function as assessed by the patient rated wrist evaluation. Secondary outcomes included range of motion, grip strength and the Mayo wrist score. A linear mixed-effects model was used to evaluate the effects of bicolumnar arthrodesis and radioscapholunate arthrodesis in treating SLAC II arthritis. Patients receiving bicolumnar arthrodesis had more improvement in their wrist function compared with patients receiving radioscapholunate arthrodesis. A high rate of re-operation was observed in patients receiving radioscapholunate arthrodesis. In SLAC II arthritis, the expected benefit of preserving the midcarpal joint was not observed. Scapholunate ligament disruption makes radioscapholunate arthrodesis a technically challenging operation.

LEVEL OF EVIDENCE

I.

Therapeutic interventions for osteoarthritis of the wrist: a systematic review and meta-analysis

Background: In order to evaluate the effectiveness of interventions for osteoarthritis of the wrist in adults we performed a systematic review and meta-analysis. Methods: The MEDLINE and EMBASE via OVID, CINAHL and SPORTDiscus via EBSCO databases were searched from inception to 25 th April  2018.All randomised controlled clinical trials (RCTs) and any prospective studies of adults with wrist osteoarthritis investigating any intervention with a comparator were included.  Data were extracted and checked for accuracy and completeness by pairs of reviewers. Primary outcomes were pain and function. Comparative treatment effects were analysed by random effects at all time points. Results: Three RCTs were identified for inclusion after screening and all had a high risk of bias. Two compared proximal row carpectomy (PRC) with four corner fusion (4CF) for post-traumatic osteoarthritis, while the other compared leather with commercial wrist splints in patients with chronic wrist pain, of which a small group had wrist osteoarthritis.  Conclusion: There is no prospective study comparing operative to non-operative treatment for wrist osteoarthritis, while there is a paucity of prospective studies assessing the effectiveness of both non-operative and operative interventions.  Further research is necessary in order to better define which patients benefit from which specific interventions. Registration: The review protocol was registered with PROSPERO under the registration number CRD42018094799.

Therapeutic interventions for osteoarthritis of the wrist: a systematic review and meta-analysis

Background: In order to evaluate the effectiveness of interventions for osteoarthritis of the wrist in adults we performed a systematic review and meta-analysis. Methods: The MEDLINE and EMBASE via OVID, CINAHL and SPORTDiscus via EBSCO databases were searched from inception to 25 th April  2018.All randomised controlled clinical trials (RCTs) and any prospective studies of adults with wrist osteoarthritis investigating any intervention with a comparator were included.  Data were extracted and checked for accuracy and completeness by pairs of reviewers. Primary outcomes were pain and function. Comparative treatment effects were analysed by random effects at all time points. Results: Three RCTs were identified for inclusion after screening and all had a high risk of bias. Two compared proximal row carpectomy (PRC) with four corner fusion (4CF) for post-traumatic osteoarthritis, while the other compared leather with commercial wrist splints in patients with chronic wrist pain, of which a small group had wrist osteoarthritis.  Conclusion: There is no prospective study comparing operative to non-operative treatment for wrist osteoarthritis, while there is a paucity of prospective studies assessing the effectiveness of both non-operative and operative interventions.  Further research is necessary in order to better define which patients benefit from which specific interventions. Registration: The review protocol was registered with PROSPERO under the registration number CRD42018094799.

Midterm Results of Four-Corner Fusion Using Dorsal Circular Plate Fixation

Purpose  The purpose of this prospective study was to evaluate the results of four-corner fusion using dorsal circular plate. Methods  We operated on 20 patients between 2009 and 2011. Results  At a mean follow-up period of 30 months (range: 14-62, SD: 16), the mean VAS improved from 8 (range: 4-10, SD: 2) preoperatively to 4 (range: 0-8, SD: 2). Function measured with the DASH score improved from 37 (range: 10-75, SD: 18) to 26 (range: 2.5-64, SD: 19). Eighteen patients in our series showed full consolidation and two patients showed persistent nonunion. Three cases required plate removal due to dorsal impingement. Conclusion   Four-corner fusion using dorsal circular plate showed satisfactory results in this study, but it did not show superior results compared with simpler fixation methods mentioned in the literature, such as K-wires or screw fixation. Currently, we are principally using K-wires as a fixation method of choice in our four-corner fusion procedures. Level of Evidence   Level II.

Performance of Patient-Reported Outcomes Measurement Information System (PROMIS) Upper Extremity (UE) Versus Physical Function (PF) Computer Adaptive Tests (CATs) in Upper Extremity Clinics

PURPOSE

To examine the performance of the Patient-Reported Outcomes Measurement Information System (PROMIS) Upper Extremity (UE) Function Computer Adaptive Test (CAT) relative to the PROMIS Physical Function (PF) CAT in patients seeking specialty care for upper extremity conditions.

METHODS

This observational trial analyzed prospectively collected PROMIS UE and PF CAT scores from 5,202 adult patients with 10,344 outpatient clinic visits presenting to a tertiary orthopedic clinic. Pearson correlation coefficient was utilized to evaluate the association between initial PF and UE scores as well as the association between changes in PF and UE scores between visits. Differences in scores between populations presenting with hand conditions versus shoulder and elbow conditions were evaluated via Student t test, as were differences in scores between new and return patient visits.

RESULTS

The PROMIS UE CAT scores were strongly correlated with PROMIS PF CAT scores. However, patients averaged 8 points lower scoring on UE CAT testing than on PF CAT scores. The UE CAT demonstrated a ceiling effect at a score of 56 that affected 7% of patients with a secondary ceiling at 50. Changes in PF and UE scores between visits were moderately correlated with a mean difference of less than 1 point. Patients presenting for hand conditions achieved better PF and UE scores than patients presenting for shoulder and elbow conditions.

CONCLUSIONS

The PROMIS UE module appears responsive to changes over time. However, the current UE CAT has a ceiling score of 56, which does not allow for improvement of scores 0.6 SD higher than the presumptive normative population mean of 50. Although a specific assessment of upper extremity function is desirable, continued refinement of the PROMIS UE CAT is required to better assess patients with higher levels of function.

TYPE OF STUDY/LEVEL OF EVIDENCE

Diagnostic II.

A Comparative Analysis of Resource Utilization Between Proximal Row Carpectomy and Partial Wrist Fusion: A Population Study

PURPOSE

We conducted a population-level analysis comparing proximal row carpectomy (PRC) and partial wrist arthrodesis (PWA) for treatment of chronic wrist arthritis to (1) characterize national practice patterns, (2) determine the rate of conversion to total wrist arthrodesis (TWA), and (3) calculate the associated direct cost of care.

METHODS

Using the Truven MarketScan databases from 2009 to 2015, we identified patients 18 years or older with a diagnosis of wrist osteoarthritis who had a PRC or PWA and were followed for 18 months. We used Chi-square analysis and multivariable logistic regression to examine patient characteristics associated with conversion to a TWA. Rates of repeat PWA were also obtained, including the total number of procedures until completion and direct treatment cost.

RESULTS

Of a total of 3,388 eligible patients, 1,305 had a PRC (39%) and 2,083 had a PWA (61%). In patients 54 years of age or younger, PWA was more commonly performed than PRC (49% vs 38%). The TWA rates were significantly higher for patients of all ages who underwent PWA (19.2%) versus PRC (4.9%). Those undergoing PWA required more total procedures than patients who received a PRC (average, 1.7 vs 1.1) resulting in a greater average direct cost per patient ($10,842 vs $7,171).

CONCLUSIONS

Conversion rates to a TWA are significantly higher with a PWA (19.2%) than with a PRC (4.9%) and have a greater associated direct cost. This includes younger patients, who in the past were considered better candidates for PWA. Our findings suggest that surgeons may need to reevaluate their indications for PWA and that there may need to be a paradigm shift in the current practice patterns for salvage treatment of wrist arthrosis, more often considering PRC for all age groups.

TYPE OF STUDY/LEVEL OF EVIDENCE

Prognostic II.

A structured literature synthesis of wrist outcome measures: An evidence-based approach to determine use among common wrist diagnoses

STUDY DESIGN

Structured literature synthesis.

INTRODUCTION

Hand therapists and researchers have numerous options when selecting outcome measures for patients with wrist pathologies. An evidence-based approach to determining which measures are used most often can inform choices.

PURPOSE OF THE STUDY

To describe how frequently outcome measures are used in recent randomized controlled trials of patients with wrist diagnoses. Identifying assessment design and related International Classification of Functioning, Disability and Health (ICF) domains provides additional consideration for selection.

METHODS

Systematic PubMed and Cumulative Index to Nursing and Allied Health Literature searches for the time frame between January 2005 and March 2015 captured measures used in randomized controlled trials researching wrist-specific fractures, ligament injuries, nerve injuries, arthritis/arthroplasty, or stress injuries/wrist pain.

RESULTS

Three most frequent measures used within each diagnostic category are detailed with assessment design described and ICF domain identified. Across diagnoses, grip/pinch strength and Disabilities of Arm, Shoulder and Hand were the most frequently used physical and patient-reported outcome measures, respectively. The Jebsen-Taylor Hand Function Test was the most frequently used performance measure.

DISCUSSION AND CONCLUSIONS

Consideration of the evidence, ICF domains, wrist diagnoses, and assessment design can help hand therapists select the measure most appropriate for use.

LEVEL OF EVIDENCE

2a.

Comparison of activities of daily living after proximal row carpectomy or wrist four-corner fusion

Proximal row carpectomy and four-corner fusion are commonly used in the patients with scaphoid nonunion advanced collapse or scapholunate advanced collapse. We compared activities of daily living of the 24 patients after proximal row carpectomy with 24 patients with four-corner fusion procedures using the modified Sollerman hand function test and Michigan Hand Questionnaire. Most tasks were performed significantly quicker by the patients after proximal row carpectomy. The patients after proximal row carpectomy reported better function during activities of daily living.

LEVEL OF EVIDENCE

Level III, Therapeutic Study.

Proximal row carpectomy on manual workers: 17 patients followed for an average of 6 years

Proximal row carpectomy (PRC) is indicated for the treatment of SNAC or SLAC wrist with preservation of the midcarpal joint. Our hypothesis was that PRC is not appropriate for treating advanced wrist osteoarthritis in patients who carry out heavy manual work. Twenty-three PRCs were performed on 21 patients, 5 women and 16 men with an average age of 54 years (33-77). All patients performed manual work; 11 of them performed heavy manual work. Etiologies were: SLAC wrist in 14 cases (2 stage III, 11 stage II, and 1 stage I) and SNAC wrist in 9 cases (6 stage IIIB and 3 stage IIB). At an average 75 months' follow-up (24-153), five patients were lost to follow-up. Radiocarpal arthrodesis was performed in one patient 10 years after the PRC. In the 17 remaining patients (18 wrists), pain (VAS) averaged 2.2, with residual pain of 5. Flexion-extension range was similar to preoperative levels (67% of contralateral wrist). Wrist strength was decreased by 34% compared to preoperative. The QuickDASH score averaged 26 points and the PRWE 20 points. Radiocapitate distance decreased by 0.3mm on average with joint line narrowing in 6 patients. The carpal translation index was 0.33mm, which was unchanged relative to preoperative values. Three patients had work-related limitations that required retraining and one patient had to be reassigned. PRC preserved the preoperative range of motion and reduced pain levels. However, significant loss of strength was observed, resulting in 23% of manual workers needing retraining or reassignment.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic IV.

Randomized clinical trial between proximal row carpectomy and the four-corner fusion for patients with stage II SNAC

Objective

To compare the outcomes of patients with stage II SNAC submitted to surgical treatment by proximal row carpectomy (PRC) or four-corner fusion (FCF).

Method

Twenty-seven patients aged 18–59 years (mean 37.52 years) were included. Thirteen patients underwent PRC in Group A, and 14 underwent FCF of the wrist in Group B. Evaluations were made before and after surgery with follow-up between 45 and 73 months. Range of motion (ROM); pain assessment with a visual analog scale (VAS); grip strength; disability of the arm, shoulder, and hand (DASH); and return to work were evaluated.

Results

Group A patients had 68.5% and Group B patients, 58.01% of the ROM of the contralateral side. The VAS score was 2.3 in Group A and 2.9 in Group B. Grip strength was 78.67% and 65.42%, respectively, relative to the side not affected. The DASH score was 11 for PRC and 13 for FCF. In Group A, 9/13 (69.23%) and in Group B, 8/14 (57.14%) patients are currently working. Complications were symptomatic osteoarthritis in the mid-carpal joint in Group A and loosening of a screw in Group B.

Conclusion

The clinical and functional results do not present statistically significant differences for both analyzed methods.

Four-Corner Arthrodesis Versus Proximal Row Carpectomy: A Retrospective Study With a Mean Follow-Up of 17 Years

PURPOSE

To compare the long-term outcomes of proximal row carpectomy (PRC) and 4-corner arthrodesis (FCA) in a consecutive series of patients surgically treated between 1989 and 1998 in a single teaching hospital.

METHODS

We included 12 patients (14 wrists) in the PRC group and 8 patients (8 wrists) in the FCA group. Mean follow-up time was 17 years. We compared functional outcome measures (range of motion and grip strength) and patient-reported outcome measures (visual analog score for pain, Mayo Wrist Score, and Michigan Hand Questionnaire). Radiographic evaluation of joint degeneration using the Culp and Jebson scoring system and postoperative complications were assessed for both groups.

RESULTS

Active range of motion was slightly better after PRC. There were no differences in grip strength and patient-reported outcomes between groups. Severity of degenerative changes did not differ between groups and was not correlated with pain scores. The FCA group showed more postoperative complications.

CONCLUSIONS

Considering the objective and patient-reported outcomes of this study, both types of surgery perform well in the long run. Proximal row carpectomy seems to result in slightly better movement of the wrist with fewer surgical complications and no need for hardware removal. Moreover, postoperative immobilization time was much shorter.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic III.

Clinical outcomes of proximal row carpectomy versus four-corner arthrodesis for post-traumatic wrist arthropathy: a systematic review

We conducted a systematic review of studies reporting clinical outcomes after proximal row carpectomy or to four-corner arthrodesis for scaphoid non-union advanced collapse or scapholunate advanced collapse arthritis. Seven studies (Levels I-III; 240 patients, 242 wrists) were evaluated. Significantly different post-operative values were as follows for four-corner arthrodesis versus proximal row carpectomy groups: wrist extension, 39 (SD 11º) versus 43 (SD 11º); wrist flexion, 32 (SD 10º) versus 36 (SD 11º); flexion-extension arc, 62 (SD 14º) versus 75 (SD 10º); radial deviation, 14 (SD 5º) versus 10 (SD 5º); hand grip strength as a percentage of contralateral side, 74% (SD 13) versus 67% (SD 16); overall complication rate, 29% versus 14%. The most common post-operative complications were non-union (grouped incidence, 7%) after four-corner arthrodesis and synovitis and clinically significant oedema (3.1%) after proximal row carpectomy. Radial deviation and post-operative hand grip strength (as a percentage of the contralateral side) were significantly better after four-corner arthrodesis. Four-corner arthrodesis gave significantly greater post-operative radial deviation and grip strength as a percentage of the opposite side. Wrist flexion, extension, and the flexion-extension arc were better after proximal row carpectomy, which also had a lower overall complication rate.

Comparison of the clinical and functional outcomes following 3- and 4-corner fusions

PURPOSE

To explore the clinical and functional outcomes of 3-corner fusion (3CF) for stage 2 and 3 scapholunate advanced collapse and scaphoid nonunion advanced collapse. We compared the results with 4-corner fusion (4CF) using a recent published report.

METHODS

Twelve patients (8 men and 4 women) who had a 3CF, mean age 60 years (range, 34-75 y) were reviewed in clinic more than 1 year after surgery. Subjective outcome measures included the Michigan Hand Questionnaire and Patient Evaluation Measure. Objective outcome measures included range of motion with a flexible electrogoniometer and grip strength measured with a digital dynamometer. The results were compared using a recent report of 24 patients (17 men and 7 women) with a 4CF, mean age 55 years (range, 34-68 y) assessed with similar techniques.

RESULTS

The patients receiving 3CF had better subjective scores with the Michigan Hand Questionnaire, including the sub-scores for activities of daily living and satisfaction. The radioulnar arc was greater after the 3CF than after the 4CF. Circumduction of the 3CF was more like a normal wrist than the 4CF. This included having faster and smoother motion, with an axis of circumduction closer to the normal wrist. Peak grip strength was similar after either a 3CF or 4CF but grip strength in the 3CF was 82% of the contralateral wrist compared with 59% for the 4CF.

CONCLUSIONS

The 3CF provided better patient-rated scores and the arc of wrist motion was more extended, with greater ulnar deviation. Motion was smoother and more closely replicated the normal axis and functional motion of the wrist.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic III.

Wrist salvage procedures alter moment arms of the primary wrist muscles

BACKGROUND

Proximal row carpectomy and scaphoid-excision four-corner fusion are salvage procedures that relieve pain by removing arthritic joint surfaces. While numerous studies have examined how these procedures affect joint motion, few have examined how they influence muscle mechanical actions. This study examines whether muscle moment arms change after these procedures.

METHODS

Moment arms of primary wrist muscles were measured in 8 cadaveric specimens using the tendon excursion method. In each specimen, moment arms were measured for two degrees of freedom (flexion-extension and radial-ulnar deviation) and three conditions (nonimpaired, scaphoid-excision four-corner fusion, and proximal row carpectomy). For each muscle and degree of freedom, moment arm versus joint angle curves for the three conditions were statistically compared.

FINDINGS

Wrist salvage procedures significantly alter moment arms of the primary wrist muscles. Proximal row carpectomy primarily alters flexion-extension moment arms, while scaphoid-excision four-corner fusion primarily alters radial-ulnar deviation moment arms. Both procedures also alter the balance between agonist and antagonist wrist muscles. Following proximal row carpectomy, wrist extensors have smaller moment arms in extended postures. Following scaphoid-excision four-corner fusion, radial deviators have larger moment arms throughout radial-ulnar deviation.

INTERPRETATION

Different moment arms indicate that different forces are required to complete the same tasks in nonimpaired and surgically altered wrists. The altered muscle moment arms likely contribute to post-operative impairments. Understanding how salvage procedures alter muscle mechanical actions is a critical first step toward identifying the cause of post-operative impairments and is necessary to develop effective interventions to augment deficient muscles and improve overall function.

Vascularized bone grafting and distal radius osteotomy for scaphoid nonunion advanced collapse

PURPOSE

To determine the outcome of an alternative treatment for wrists with stages I to III scaphoid nonunion advanced collapse using a closing-wedge osteotomy of the distal radius and a vascularized bone graft for scaphoid reconstruction.

METHODS

Twelve patients with scaphoid nonunion advanced collapse (stage I, 3; stage II, 7; stage III, 2) treated with a vascularized bone graft interposition for the scaphoid and a closing-wedge osteotomy for the distal radius were retrospectively reviewed. Data were obtained and analyzed from the radiographs, and we assessed the pre- and postoperative range of motion, grip strength, visual analog scale pain score, as well as the Mayo and Disabilities of the Arm, Shoulder, and Hand (DASH) functional scores.

RESULTS

Follow-up ranged from 2 to 11 years. All scaphoid nonunions united after an average of 9 weeks, and all osteotomies united after an average of 8 weeks. Although there was radiographic progression of the scaphoid nonunion advanced collapse stage in 5 of 12 cases, there was major improvement in visual analog scale pain score (from 6.1 to 0.8) and in both Mayo (from 64 to 85) and DASH (from 40 to 9) functional scores. The range of motion remained unchanged, and grip strength trended toward minor improvement. The carpal height was preserved, and the dorsal intercalated segmental instability was corrected.

CONCLUSIONS

Scaphoid reconstruction with vascularized bone graft combined with closing-wedge distal radius osteotomy preserved wrist function for scaphoid nonunion advanced collapse. The method offers pain relief and does not compromise wrist motion or grip strength.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic IV.

Scaphoid excision and 4-corner fusion using retrograde headless compression screws

Scapholunate advanced collapse is a predictable form of wrist arthritis resulting from longstanding scapholunate instability. Four-corner fusion and scaphoid excision is a reliable procedure used to treat scapholunate advanced collapse wrist that improves pain and preserves range of motion. Multiple methods of achieving fixation have been described for the procedure including K-wires, staples, and headless compression screws. In previously described techniques, the compression screws are inserted in an antegrade manner, breaching the articular surface of the lunate. Even small areas of chondral damage may undermine the long-term durability of the radiocarpal joint. Given the 4-corner fusion relies on the integrity of the radiolunate articulation for success, it would seem advantageous to preserve the articular cartilage of the lunate. The technique described here involves retrograde insertion of headless compression screws to achieve a 4-corner fusion. Although it is still early, we anticipate that this procedure will result in similar fusion rates to other forms of fixation.

A survey of recently published papers on orthopedics in the Brazilian scientific press

This paper is a review of articles published in Brazilian scientific periodicals in recent years. Its main purpose is to bring to the attention of the readership of Acta Ortopedica Brasileira original contributions to the field published in non-specialized journals. We hope that this will serve as a general scientific update for readers. The review includes works published in six ISI indexed non-orthopedic journals, following a literature search conducted in fourteen such journals.

Scaphocapitolunate arthrodesis and radial styloidectomy: a treatment option for posttraumatic degenerative wrist disease

Longstanding scaphoid nonunion, scaphoid malunion, and chronic scapholunate dissociation result in malalignment of the carpal bones, progressive carpal collapse, instability, and osteoarthritis of the wrist. The most commonly used procedures to treat scaphoid nonunion advanced collapse (SNAC) and scapholunate advanced collapse (SLAC) wrists are the four-corner fusion (4CF) and the proximal row carpectomy (PRC). Here we describe a different treatment option: radial styloidectomy and scaphocapitolunate (SCL) arthrodesis. This treatment option is chosen in an effort to maintain the joint contact surface and load transmission across the radiocarpal joint. Twenty patients were treated by the senior author (DLF) with this method with a mean follow-up of 4.6 years. Pain decreased in all patients, and 13 patients were pain-free postoperatively. The average Disabilities of the Arm, Shoulder, and Hand (DASH) scores decreased from 44 preoperatively to 23 postoperatively. One patient's course was complicated by nonunion, which was successfully treated with revision of the SCL arthrodesis. On follow-up radiographs, no patient had progressive osteoarthritis. This method preserves the normal ulnar-sided joints of the carpus, which are sacrificed during 4CF, and maintains a more physiologic joint surface for radiocarpal load sharing.

Use of Condition-Specific Patient-Reported Outcome Measures in Clinical Trials among Patients with Wrist Osteoarthritis: A Systematic Review

Background. This paper aimed to identify condition-specific patient-reported outcome measures used in clinical trials among people with wrist osteoarthritis and summarise empirical peer-reviewed evidence supporting their reliability, validity, and responsiveness to change. Methods. A systematic review of randomised controlled trials among people with wrist osteoarthritis was undertaken. Studies reporting reliability, validity, or responsiveness were identified using a systematic reverse citation trail audit procedure. Psychometric properties of the instruments were examined against predefined criteria and summarised. Results. Thirteen clinical trials met inclusion criteria. The most common patient-reported outcome was the disabilities of the arm, shoulder, and hand questionnaire (DASH). The DASH, the Michigan Hand Outcomes Questionnaire (MHQ), the Patient Evaluation Measure (PEM), and the Patient-Reported Wrist Evaluation (PRWE) had evidence supporting their reliability, validity, and responsiveness. A post-hoc review of excluded studies revealed the AUSCAN Osteoarthritis Hand Index as another suitable instrument that had favourable reliability, validity, and responsiveness. Conclusions. The DASH, MHQ, and AUSCAN Osteoarthritis Hand Index instruments were supported by the most favourable empirical evidence for validity, reliability, and responsiveness. The PEM and PRWE also had favourable empirical evidence reported for these elements. Further psychometric testing of these instruments among people with wrist osteoarthritis is warranted.

Scaphocapitolunate arthrodesis and radial styloidectomy for posttraumatic degenerative wrist disease

Long-standing scaphoid nonunion, scaphoid malunion, and chronic scapholunate dissociation result in malalignment of the carpal bones, progressive carpal collapse, instability, and osteoarthritis of the wrist. The most commonly used procedures to treat scaphoid nonunion advanced collapse (SNAC) and scapholunate advanced collapse (SLAC) wrists are the four-corner fusion (4CF) and the proximal row carpectomy (PRC). The purpose of this study was to evaluate the clinical outcome of a different treatment modality: radial styloidectomy and scaphocapitolunate (SCL) arthrodesis. This treatment option is chosen in an effort to maintain the joint contact surface and load transmission across the radiocarpal joint. We conducted a retrospective review of 20 patients (average age 62 years, range: 27 to 75 years) treated from 1994 to 2010. Seven patients were treated for SNAC, 12 patients for SLAC wrists, and 1 for degenerative joint disease following a transscapho-transcapitate perilunar dislocation. Sixteen patients had Herbert screw fixation, and four had Spider plate fixation. All patients had autologous bone graft used for the arthrodesis. The mean follow-up was 4.6 years (range: 2 to 9.6 years). Patients were evaluated clinically and radiographically. Nineteen of 20 arthrodeses healed on an average of 9.6 weeks. One patient was reoperated 8 months after the initial operation with salvage of the SCL arthrodesis with a spider plate with an adequate result. The mean active flexion-extension arc was 70 degrees and the radioulnar deviation arc was 23 degrees. Pain decreased in all patients, 13 of whom were pain free postoperatively. The average postoperative disabilities of arm, shoulder, and hand score was 24. Radiographically, neither radiolunate nor radioscaphoid arthritis was noted on follow-up. SCL arthrodesis with radial styloidectomy resulted in an adequate residual range of motion and pain relief. This method preserves the normal ulnar sided joints of the carpus and maintains a more physiologic joint surface for radiocarpal load sharing.