Background: This study aimed to evaluate the clinical and radiological outcome after cheilectomy and proximal phalangeal biplanar osteotomy for patients with mild and advanced stages of hallux rigidus. Methods: A total of 105 feet (grades 0-4) were treated with cheilectomy and a Moberg-Akin osteotomy of the proximal phalanx. All patients were clinically assessed preoperatively and followed up for 12 months by range of motion, visual analog scale (VAS) pain score, American Orthopaedic Foot & Ankle Society (AOFAS) score, Short Form 36 (SF-36) score, and weightbearing radiographs. Results: This operative procedure resulted in a statistically significant positive effect on mobility of the first metatarsophalangeal joint ( P = .001), VAS pain score ( P < .001), AOFAS score ( P < .001), and SF-36 score ( P < .001). Conclusion: Cheilectomy and biplanar osteotomy of the proximal phalanx was an effective procedure for hallux rigidus with a positive effect on clinical and radiological outcome. Level of Evidence: IV, case series.