Iyer, Sanathan

Abstract Purpose Iliopsoas tendinitis following total hip arthroplasty (THA) has been described to result from acetabular component overhang as well as prominent femoral collars. Yet, a portion of patients experience iliopsoas tendinitis in the setting of well-positioned components. The purpose of this study was to assess anatomic factors predisposing to iliopsoas tendinitis after THA. Methods Patients with THAs performed at three academic institutions who subsequently underwent arthroscopic iliopsoas release were retrospectively reviewed from 2015 to 2025 and propensity matched in a 1:3 fashion to a control group of THAs without subsequent iliopsoas release. Controls were matched by age, surgery date, laterality, sex, surgical approach, and implanted femoral component. Patients with iliopsoas tendinitis and subsequent release (THA-IP) were evaluated for anterior acetabular component overhang and femoral collar overhang, when a collar was present. We also evaluated the absolute and relative profile of the lesser trochanter on anteroposterior radiographs, understanding that when less of the lesser trochanter is visualized, the trochanter is anatomically displaced posterolaterally, resulting in a more arduous route from the inner pelvic origin of the iliopsoas to its insertion on the femur. Results Forty-five patients (mean age: 57±11; 71% female; 19 direct anterior, 10 anterolateral, 16 posterior approach) undergoing THA-IP were analyzed and matched to 135 controls. Both groups demonstrated a median cup size of 54 mm and head size of 36 mm. Average time to iliopsoas release after THA was 4 years. Anterior cup overhang of >2 mm was present in 49% of THA-IP patients, with 18% having collared femoral components, and 9% demonstrating collar overhang of >2 mm. Overall, 19 THA-IP patients had <2 mm of cup and collar overhang and 26 patients had >2 mm of overhang. THA-IP patients with <2 mm of cup and collar overhang had significantly greater relative posterolateralization of the lesser trochanter compared to those with overhang of >2 mm (p=0.010) and to controls (p=0.037). Conclusion Visualizing “Less of the Lesser” on anteroposterior hip radiographs and associated posterolateralization of the lesser trochanter may be an anatomic risk factor for iliopsoas tendinitis following THA, even in the presence of satisfactorily positioned components.

Abstract Introduction Understanding factors that impact outcomes of total hip arthroplasty (THA) can aid clinical decision-making and patient counselling. The purpose of this study was to investigate functional outcomes, complications, and reoperation rates among patients undergoing primary THA after hip arthroscopy (HA-THA) compared to a matched cohort of primary THA patients without prior arthroscopy (THA-only). Methods A retrospective review was performed to identify all patients who underwent primary THA after prior hip arthroscopy from 2009-2022 at a single institution. Patients with a history of revision arthroscopy were excluded. Cases were propensity-matched with primary THA controls in a 1:4 ratio by age at time of THA, sex, body mass index, surgical approach, and year of surgery. At minimum 2-year follow-up, patient-reported outcomes (PROs) including Forgotten Joint Score (FJS), Modified Harris Hip Score (mHHS), Hip Disability and Osteoarthritis Outcome Score Pain (HOOS pain), and Visual Analog Pain Scale (VAS) were analyzed. Results Sixty-three hips in 60 patients (age: 47.3±9.4 years, BMI: 29.8±6.2 kg/m2) were matched to 252 THA-only hips, with patients converting to THA at a mean 3.1 years (range 0.3-10.3) following hip arthroscopy. While both HA-THA and THA patients demonstrated significant (p<0.001) postoperative improvements in PROs, HA-THA patients reported significantly lower postoperative FJS, mHHS, HOOS pain, and VAS pain scores (p<0.001) as compared to THA-only controls. At mean 6.6±3.2 years follow-up, HA-THA patients with preoperative Tönnis grades 2-3 reported significantly increased FJS, mHHS, and HOOS pain compared to those with preoperative Tönnis grades of 0-1 (p≤0.03). Additionally, HA-THA patients with preoperative Tönnis grades 0-1 exhibited worse PROs (p<0.001) as compared to THA-only controls. While there were no differences in complication rates between HA-THA patients and THA-only controls (8% vs. 5%, p=0.49), all-cause reoperation was greater amongst HA-THA patients compared to THA-only (10% vs. 2%, p=0.01). Conclusion While improved compared to preoperatively, patients undergoing THA after prior hip arthroscopy demonstrated inferior outcomes at mid-term follow up as compared to a demographically age-matched cohort without prior arthroscopy. When considering conversion to THA following arthroscopy, clinicians should consider counseling patients regarding improved outcomes in the setting of advanced radiographic osteoarthritis, and potentially increased all-cause reoperation.

Abstract Purpose To investigate clinical outcomes, including patient reported outcome measures (PROMs), subjective anterior groin pain and hip flexion strength, and reoperation rates following arthroscopic iliopsoas fractional lengthening after total hip arthroplasty (THA). Methods Patients who were indicated for arthroscopic iliopsoas fractional lengthening after ipsilateral THA were prospectively identified between 2023-2025 at a single institution. Pre- and post-operative PROMs, including Visual Analog Scale (VAS), Tegner activity scale, Single Assessment Numeric Evaluation (SANE), and subjective anterior groin pain and hip flexion strength were analyzed. Reoperations at final follow-up were also evaluated. Results A total of 44 hips in 41 patients (23 females and 18 males) were included (mean age: 64.7 ± 10.2, mean BMI: 29.9 ± 5.9 kg/m2). Fifty-five percent of patients underwent surgery on their right hip. The mean postoperative follow-up timeframe was 10.0 ± 7.1 months. There was a significant improvement in postoperative PROMs compared to pre-operative levels for VAS at rest (1.3 ± 1.9 vs. 2.9 ± 2.2), VAS with use (3.1 ± 3.8 vs. 8.0 ± 1.6), Tegner activity scale (2.9 ± 1.3 vs. 2.1 ± 1.1), and SANE (74.0 ± 20.3 vs. 47.9 ± 23.4) (p<0.001 for all). Over 90% of patients reported feeling much better or slightly better regarding their anterior groin pain at 2-weeks post-operatively (93%), 6 weeks post-operatively (90%), 3 months post-operatively (93%), and at final follow-up (91%). Regarding hip flexion strength, 73% reported feeling much better or slightly better at 2-weeks post-operatively, 95% at 6-weeks post-operatively, 85% at 3 months post-operatively, and 61% at final follow-up. Only 2 patients (5%) reported feeling much weaker at final follow-up. Two of 44 hips (5%) underwent reoperation at final follow-up. One patient underwent a 2-stage revision THA at 5 months postoperatively due to infection, while 1 patient underwent an open iliopsoas release with acetabular screw removal and liner exchange. Overall, the mean surgery satisfaction was 8.1 ± 2.6 on a scale of 1-10. Conclusion Patients who underwent arthroscopic iliopsoas fractional lengthening following THA demonstrated satisfactory postoperative outcomes, with over 90% reporting durably improved anterior groin pain and nearly two-thirds reporting increased hip flexor strength throughout follow-up.

Purpose To compare clinical and functional outcomes (including range of motion, clinical laxity, reoperation/revision rates, and patient‐reported outcome measures) of combined anterior cruciate ligament/posterior cruciate ligament reconstruction (ACLR/PCLR) with and without suture tape (ST) augmentation via a propensity‐matched cohort analysis. Methods A retrospective review was performed to identify all patients who underwent simultaneous primary ACLR/PCLR between 2001 and 2022. A 1:1 propensity match was performed using patient sex, Schenck classification grade, age ±8 years, and body mass index ±10 to produce 2 cohorts: ACLR/PCLR with and without (control) ST augmentation. Clinical outcomes (visual analog scale [VAS], range of motion, Tegner activity scale, Lysholm score, and International Knee Documentation Committee subjective score) were analyzed. Results The propensity match produced a final cohort of 50 ACLR/PCLR patients: 25 with ST augmentation and 25 nonaugmented controls. Most patients had a KD3M injury (12 in each cohort), and no significant differences were noted in concomitant neurovascular, meniscal, or chondral injuries between the groups. Forty patients (80%) completed follow‐up at a mean of 4.7 years for the ST cohort and 8.5 years for the control cohort ( P > .05). Postoperative ST versus control values for outcome measures including VAS at rest (0.9 vs 1.5; P = .71), VAS with use (3.0 vs 2.2; P = .24), International Knee Documentation Committee (75.7 vs 76.3; P = .37), Lysholm (81.8 vs 77.6; P = .91), and Tegner activity (4.8 vs 5.4; P = .37) scores showed no differences ( P > .05 for all). There were no differences in excessive postoperative clinical laxity between ST and control cohorts (ST n = 1 vs control n = 2, Lachman 2+, P = .140; ST n = 3 vs control n = 1, posterior drawer 2+, P = .122). The total number of patients who underwent reoperation was 7 of 25 (28%) for the ST cohort and 8 of 25 (32%) for the control cohort ( P = .76). Conclusions Concomitant ACLR/PCLR utilizing ST augmentation showed similarly satisfactory postoperative clinical outcomes at a minimum 2‐year follow‐up compared to a matched cohort without ST. The use of an independent ST did not limit motion or increase the incidence of complications or revision surgery. Level of Evidence Level III, retrospective comparative case series.

Abstract As the prevalence of hip arthroscopy increases, management of capsular defects as well as capsulotomy closure has increasingly been recognized for their impact on recurrent symptoms in the young athletic hip. Several recent studies have shown that capsular closure at the time of primary hip arthroscopy improves both short‐ and long‐term patient‐reported outcomes, revision rates, and conversion to arthroplasty. Specifically, capsular insufficiency is a source of recurrent pain and microinstability. In this context, far medial labral tears pose a challenge for suture fixation, given the historic need of extending the interportal capsulotomy to obtain adequate trajectory for suture anchors and subsequent passage. Given the suboptimal stability consequences of extending the capsulotomy medially, here we present a novel approach for suture fixation of the medial labrum. This technique provides an effective method for suture fixation of the medial labrum, without necessitating extension of the interportal capsulotomy. Technique Video video See video under supplementary data.